This is the worst explanation ever. at 12:16 he said backspacing and offset are "completely different and not related" and they definitely are related. While they are 2 different measurements they are related. This guy is 100 percent wrong and has no clue what he is saying. a 17x9 wheel with 4.5 inches of backspacing has to have -12 offset. you cannot "prefer" -12 offset with 4.5 inches of backspacing. It CANNOT be a different number if the offset was changed to 0 the backspacing would HAVE to change to 4.75 To say they are not related is absolutely false, you cannot change one without changing the other and if you have a certain backspacing on a wheel it will have a specific offset. This is how it works. One decides the other.......every single 9 inch wide wheel (could be 17x9, 18x9, 22x9) with 4.5 inches of backspacing will have -12 offset and EVERY single 9 inch wide wheel that has -12 offset will have 4.5 inches of backspacing I implore anybody to try to get a 17x9 with 4.5 inches of backspace with any offset other than -12. Please try, it's not possible
You need to understand that although backspacing and offset are 2 different measurements they are completely intertwined. Change one and it changes the other. Offset is how much distance is between the centerline of the wheel and the hub mounting surface of the wheel. The backspacing is the distance from the back edge of the wheel and the hub mounting surface of the wheel. So as long as the wheel width stays the same, if you change the backspacing it changes the offset. Example: a 9" wide wheel with a 4.5" backspace will have a -12 offset. If you want it to have a positive or negative offset you have to change the backspacing.
This seems to be the first person here that understands this. This video says that they are different and not related when in fact that are directly related. One cannot change without affecting the other.
Totally agree. You cant change the mounting surface and call it 2 different numbers. The mounting surface changes whether its backspace or offset. Ive watched this 3 times trying to understand how you can have 2 measurements changing the same surface.
Good morning to all of you. Cheers. I'm just smiling from ear to ear. Here's a Biggggg Hugggg. This what everyone has been looking for. Thank you so much. I just put the same setup on my truck just an r18 rim. It's a great comfort and enjoyment for the time you took to share with Everyone. Have a great day. Cheers.
So many videos out there, some trying to make it short and some are so technical. You made it sound very easy, that's because you're a pro. Great video and all the explanations are in layman terms.
Thank you! Thank you! Thank you! Just got a 2018 Wrangler JK 3 weeks ago and I knew from the photos of her that I wanted new rims asap. I actually gave up one week into my search. So many options and measurements I didn't understand. This video was so helpful. Thank you Josh.
Thank you for this video, I agree this is one of the best posts on this subject! I have a JL and JK Jeep Wrangler, the JL is already lifted, JK is going to be lifted real soon with 33x12.50x17 tires already purchased. I wanted to reconfirm what I already knew in my head, this video gave me more confidence that I am making the right decision in my purchase!
Thank you for this video. It was very helpful to me and helped me understand this topic. Please do a video on beadlock wheels. Pros and cons. Are they really needed?
Wheel width, backspace, and offset are 3 different measurements but affect each other. Wheel width is measured in inches and is from bead seat to bead seat. (The physical width of the rim is larger by 2 times the thickness from the bead seat to the outer face of the rim.) Backspace is measured in inches and is the distance from the hub mounting surface of the wheel to the outside face of the inner (car side) rim. Offset is measured in millimeters (mm) and is the distance of the hub mounting surface to the centerline of the rim. If the hub is closer to the street side the offset is positive moving the tire into the vehicle. If the hub is closer to the car side the offset is negative moving the tire away from the vehicle. In the example of wheel width 9", backspace 4.5", and offset -12mm the thickness of the rim is 12mm or .472". Just under a half inch making the outside width of the wheel at the rims just under 10". If you increase the negative offset to -18mm this will decrease the backspace to about 4.25". If you want to keep the 4.5" backspace you will need to increase the wheel width to 9.5" If the original wheel was a 7.5" wheel width with a 6" backspace the offset was +44mm (1.75") Note: Rim is the outside diameter of the wheel that holds the tire bead. The inside rim is towards the vehicle, outside rim away from the vehicle.
Hey Josh. Great video! Just what I was looking for. One question--Does having a negative off set increase the likelihood of getting the dreaded death wobble?
The width of your rim, and or tire, has zero affect on the death wobble scenario. Though a wider track is more stable, the steering shake comes more from loose steering and suspension components then from tires... hope that helps. Thanks for the kind words! 😀
That was awesomely explained. My dilemma is just that. But for wheels and tires for my Gladiator Sport S. Going with 33's and 17 inch rims. Now...offset?
Though I have used them in the past, I do not condone wheel spacers for anything more then a temporary solution to a clearance issue while waiting for wheels to arrive. They put too much negative pressure on the hubs and can cause damage to components like ball joints and Bearings. In addition, they can easily become detached if not installed 100% correctly, leading to a wheel off situation. JMO
Outstanding video. Concise. Straightforward and without bias. I’m still torn between 17x9” or 17x 8.5”(does it matter??) wondering if a 315/70KO2 will stick out just enough on a Rubi if I go with 0 on the offset. Thanks!
Thank you! I would go 17x9 as later, if you wish to bigger on tires, you can use the same wheel. Be sure the back spacing is accurate for the tire size, and if it were me, I would chose a -6 offset or more for a nice mean look. 😉
How can you have the same backspace but different offsets? Both measurements well be determined by where the lugs connect. To change the offset are you adding spacers?
Back spacing is set by the lug nut mounting surface. However, offset can be changed with rim size. A 17x9, a 17x8.5 and a 17x9.5 can all have the same backspacing. But the offset will change. Therefore why I said changing one does not always change the other.
That was a very good explanation but for me it only clarified the back spacing for your specific tire and wheel setup. What if the wheel is wider than 9in? I’m still a little lost, someone help me out here.
When you start getting wider in rim size, the offset tends to change more. For example, on a 9" rim with 4" back spacing, you can see anywhere from a zero to -6 offset. Make it a 9.5" rim and same back spacing, now you can see up to a -18 offset, make it a 10" rim and you could see up to a -32..... keeping the back spacing the same, but growing the width, and the ratio for where the center of the tire to the hub changes.... which is why back spacing and Offset are NOT equal measurements.... though changing one or the other can affect each other.... Look, the wider the wheel over stock, the further it will stick out past the body.... easy way to look at it. Hope that helps
Hey thanks for that explanation. Just to clarify my goal was to find a tirewith 4.5 backspacing for my lift choice. It say it need it to clear the shocks mover. Now the wheel i was looking at is the aev they only come with a 5.77 backspacing so these rim will not work without out hitting my shocks.
True, and AEV has always tried to keep their products as close to stock as possible. But with 1.25" or larger wheel spacers, you can use the same wheels
True, and AEV has always tried to keep their products as close to stock as possible. But with 1.25" or larger wheel spacers, you can use the same wheels
@@JeepingForBeginners thanks the shock mount on the metal cloak are not needed 100%. They do say they are best so you can get the full affect of the flex or something like that. I will keep the spacer in mind.
I have a 1993 Chevy Silverado 1500 standard cab short bed 4x4 What would you recommend for a good stance on a 17” wheel? Please give me tire size and wheel specs. Thanks
Hi Nice video! Question i have 285/70 r17 can i fit a Wheel et-12 4.5 backspace jku 2014 without rub? Got another option et-14 4.45 backspace. Watch do you think will by better option? Thx
Great video this made it easier for me to understand it better since I’m just learning on what all the terms mean. So if I was to get a 255/40R18 on the front with at least 3.5-4 backspacing & 275/40R18 on the rear with 4.5 backspacing. I should get a 18x8.5 in the front & 18x9 on the back right? I want my rear wheels to stick out bout how you have it in your video is that correct?
I have a 2021 wrangler unlimited rubicon JL which currently has 20x9 fuel assault rims on it 35” tire offset seems to be 1 they do poke a little I’m looking to go with 18” wheels should I stick with the 9” width and offset I’m lost think -12 would be okay and not stick out to much I am running stock suspension any info would help me thank you
Great video Josh!! Finally someone knows how to explain properly. My only question I’m looking to same exact. My only concern does the -12mm offset put stress on the wheel bearings now that your pushing it out or with the 4 1//2 off set that compensates? Thank you. I’m looking to pick out rims in the next week or 2 great channel by the way!!! Subscribed here
hey got a question. what settings do you recommend for a rubican with 33inch tires and i want to go 17x9 rim. what backspace and offset do you recommend? i would like the tires to stick out around an inch past fender. i was thinking -6mm for offset but i have no idea about backspacing. thanks!
Like I said in the video, the back spacing is dependent on the tires desired width. Most 35s are 12.5 inches wide inflated, and average of 2 to 3 inches wider then stock. So after measuring your stock back spacing, (probably 5.5 to 6") then remove half the increased width of the tire (1 to1.5") you would set yourself an acceptable BS of between 4.5" and 3.75"..... in order to get this number exact, you need to pull a tape measure. I use 3.75" of back spacing myself with a -32mm offset on my current wheels and they look badass personally. But it's up to you. Hope that clarifies how to do that math to figure it out....
This is what I'm trying to figure out on my recently purchased 15 grand Cherokee since it has a narrower wheel well compared to a Wrangler. So if the factory standard states it has an ET56 offset with the oem 20x8" wheels and running on 265/50r20 and I move down to an 18x8" wheel that has an ET35 offset on 275/65r18 giving it a difference of 21mm, am I pushing the wheel out by about almost an inch since 1 inch is equal to 25mm?
Hey great video and thanks for the explanation, but I still don’t understand all that brewhaha. I currently have stock wheels and tires on a 2”lift with spacers so my wheels are even with my stock finders. I want to go to a 34” tire on a 17” wheel and get rid of the spacers and still have my wheels even with my finders. What rims size would I need to accomplish this?
Great video it definitely helped. My question is what size tire do put on this for the look? I currently have the stock set so I have a 245/70R17 now and the new rim is the size you have. It’s a daily driver no lift I don’t want it to big or to wide just a good look that functions
jeep tj here. 4 inch lift with 4 inch flares. wanting to run 33x10.5 tires on 15 inch rims. i want my wheels to line up with my flares or a little out but not sucked in since the tires are narrow. what backspacing and offset would achieve that?
Hey Josh. Super grateful for all your doing. I chatted a little with awhile back about shocks/springs.. now working to get to a rolling chasis for my 79 cj7 build. Im looking for just the sidewall bulges to peek out from under the oem flares. Heres what i have and my thoughts. With your experiencs i thought I'd ask. 2.5" BDS LIFT NO OTHER suspension mods 15x8 wheels 32x11.5 tires Which would give me the look described? 4"BS with -12mm offset OR 3.75" BS with -19mm offset ??
The first choice would probably work, if you are looking for just a little outside the flare. A nice solid look for an 8" wheel, but the second option I think would look better....
Hey bud. One more question. If I change the AMC20 rear end from two axle to single and do a drum to disc conversion, does that change up the stance if I stick with 4"bs and -12 offset?
Theoretically, yes. The rim will. But 33s are available in different widths themselves... so keep in mind that too.... so the last detail to have the same "stance" as those i showed is the tire would need to be 12.5 inches wide. 😉
I have a 2021 JLUR, 4 door Rubicon. I want to change my factory wheels with the 285/70R17 to a Method 703 wheel that measures 8.5x17 with 315/70R17 BFG K02 tires. The wheels are zero offset with 4.75" backspace. So far, so good, right?!! Now my question, do you think a small lift is going to be necessary for the occasional back country wheeling? No serious technical rock crawling. I've read some awful reviews of the Mopar 2" lift (which actually seems to lift about 3"-3.5"). My wife would have issues trying to get in and out easily if I go much more than the added lift from the 35" tires. Plus, I don't want to run into squabbles with my Mopar extended warranty. Help is appreciated with your experienced advice.
WHEEL OFF SET CENTER IS 0 - POS AND NEG IS FROM 0. Offset usally listed in millimeters,one millimeter is 39.37 thoudands of a inch.So 25.4 millimeters is 1 inch, 19 mm is 3/4 of a inch, 13 mm 1/2 inch, 6.3 is 1/4 inch. My thinking is make shure tape measure has mill and inch fractions side by side, makes coversion quick and easy. Be very carefull using hub spacers.
I still don't get it. The width of the wheel is fixed so if you change your offset that will move the mounting face, therefore changing the back space. If you change the backspace which is also measured to the mounting face that will change the offset. You can't change one without changing the other. Am I missing something?
Excellent explanation! I have a follow up question. So a wheel that is 9 inches wide with 4.5 inch backspacing will always have -12 offset? Essentially adjusting one of these values (backspacing or offset) should uniformly adjust the other. Correct?
And that's has always been the confusion. But no. You can get that wheel, with that backspacing in three different offsets, 0mm, -6mm and -12mm.... some companies offer a fourth at -18mm... It would make sense the offset would outweigh the BS... but it doesn't... they are two different measurements. Hence what I was trying to explain.
@@JeepingForBeginners Thanks for the response. I am having a hard time wraping my head around this. I am upgrading from factory to 35's and want to make sure I understand this right. So please bear with me. Lets take your wheel for example; width (9") and back spacing (4.5'). Keeping both of these constant. Assume the offset for that wheel is 0 where in the hub sits perfectly at center line of the wheel and in direct contact with the mounting plate. Now if we want to change the offset such that the hub sits slightly inward of the wheel hence pushing the wheel out (a negative offset). Since the hub and the mounting plate are in direct contact wouldnt that pull the mounting plate closer to the lip of the wheel and reduce the back space measurement. I hope I am not missing something rudimentary. Did watch the video twice!
I did not totally understand backspacing and offsets until watching your video. Job well done. Now that I can see the difference between a 0 and -12, it's less than a 1/2 inch, which do I choose for a 22 Gladiator Overland. Thanks for your wheel education!
I’m going to run the rough country 2 1/2” suspension kit with coils. I’m looking to run 18 x 9 with 35” tires if I do a -12mm off set and 4 1/2” back spacing would that reduce the life of my wheel bearings?
The offset on the rims is not what is going to stress the Bearings. The weight of larger tires will.... regardless, over time, they will wear out... I run 37s now on a -38mm offset and jeeps runs out fine, but eventually...... make sense?
hi could you please tell me the size of the alloy. I'm planning to upgrade my jeep JL alloy and tire to 35/12.5/11/R17 so what rim size should I choose ?
Some lift kits upgrade to larger sway bar links, which yes, would require a specific back spacing measurement. BUT, those kits will specify when that is needed
I am not a fan of spacers as a fix to the backspacing issue. They tend to cause excessive wear on Bearings and can fail over time. However, as a temporary stop gap until a appropriate set of rims can be purchased, they can work. But spacers are not a solution, ever. Just a poor bandaid. In my opinion
Probably one of the best explanations I’ve heard and seen on this topic 👍
Thank you. 😀
Agreed
Agreed!!
This is the worst explanation ever. at 12:16 he said backspacing and offset are "completely different and not related" and they definitely are related. While they are 2 different measurements they are related. This guy is 100 percent wrong and has no clue what he is saying. a 17x9 wheel with 4.5 inches of backspacing has to have -12 offset. you cannot "prefer" -12 offset with 4.5 inches of backspacing. It CANNOT be a different number if the offset was changed to 0 the backspacing would HAVE to change to 4.75 To say they are not related is absolutely false, you cannot change one without changing the other and if you have a certain backspacing on a wheel it will have a specific offset. This is how it works. One decides the other.......every single 9 inch wide wheel (could be 17x9, 18x9, 22x9) with 4.5 inches of backspacing will have -12 offset and EVERY single 9 inch wide wheel that has -12 offset will have 4.5 inches of backspacing I implore anybody to try to get a 17x9 with 4.5 inches of backspace with any offset other than -12. Please try, it's not possible
His delivery and syntax is that of a kindergarten teacher explaining something to her students...
In other words, exactly what l needed!!❤💯💪
You need to understand that although backspacing and offset are 2 different measurements they are completely intertwined. Change one and it changes the other. Offset is how much distance is between the centerline of the wheel and the hub mounting surface of the wheel. The backspacing is the distance from the back edge of the wheel and the hub mounting surface of the wheel.
So as long as the wheel width stays the same, if you change the backspacing it changes the offset.
Example: a 9" wide wheel with a 4.5" backspace will have a -12 offset. If you want it to have a positive or negative offset you have to change the backspacing.
This seems to be the first person here that understands this. This video says that they are different and not related when in fact that are directly related. One cannot change without affecting the other.
Strange that after decades in the industry he did not notice that offset = f(backspacing)
Totally agree. You cant change the mounting surface and call it 2 different numbers. The mounting surface changes whether its backspace or offset. Ive watched this 3 times trying to understand how you can have 2 measurements changing the same surface.
I'm 5 min in and I can tell this is the exact video I've been needing
This is absolutely the most clear and understandable explanation of offset, and backspacing I've seen. Thanks for this info!
Finally! find those numbers. Thanks, man.
Wheel: 17x9, 4.5 backspacing, -12 offset / Tire: 35x12.5
GO GO GO!!!!!
Josh’s pace is so controlled and very easy to understand the knowledge! Such a great lecture! Thank you
Good morning to all of you. Cheers. I'm just smiling from ear to ear. Here's a Biggggg Hugggg. This what everyone has been looking for. Thank you so much. I just put the same setup on my truck just an r18 rim. It's a great comfort and enjoyment for the time you took to share with Everyone. Have a great day. Cheers.
So many videos out there, some trying to make it short and some are so technical. You made it sound very easy, that's because you're a pro. Great video and all the explanations are in layman terms.
I have been trying to understand this for a while so I can make some intelligent choices. this is the best video I have seen, thank you
Your video was absolutely perfect! Been trying to figure out what i want to go with for our new Bronco. This was incredibly helpful!
Thank you! Thank you! Thank you! Just got a 2018 Wrangler JK 3 weeks ago and I knew from the photos of her that I wanted new rims asap. I actually gave up one week into my search. So many options and measurements I didn't understand. This video was so helpful. Thank you Josh.
The best video on this topic on UA-cam! Thank you sir!
Thank you for this video, I agree this is one of the best posts on this subject! I have a JL and JK Jeep Wrangler, the JL is already lifted, JK is going to be lifted real soon with 33x12.50x17 tires already purchased. I wanted to reconfirm what I already knew in my head, this video gave me more confidence that I am making the right decision in my purchase!
Your video was easy to understand and follow. You made our purchase of wheels easy, thank you. We went with, Battle Born Sierra wheels.
Thank you!!! I m shopping for wheels and tires now after AEV lift installed to replace my stock wheels and tires. Your video is amazing!!!
Been looking for this explanation for awhile now . Now I know what I need. . Bravo
Outstanding explanation. So helpful to new jeep owner looking to do new tires and wheels.
Outstanding! Straight to the point. Stayed on topic. Great visual explanations. This one I saved.
Thank you so much for this explanation and this channel! This has been so confusing to me and you explained it in a way I could actually understand.
Thank you this is the best video on the subject I have seen
OMG! Thank you so much! I have literally been racking my brain over this. One of the best explanations I have come across.
Thanks I was having this problem I'm going with your set up..thanks again
Great video. You help me a lot. Thanks from Quebec Canada
Excellent video this is what I was looking for thank you for sharing your knowledge
Thank you for this video. It was very helpful to me and helped me understand this topic. Please do a video on beadlock wheels. Pros and cons. Are they really needed?
Wheel width, backspace, and offset are 3 different measurements but affect each other. Wheel width is measured in inches and is from bead seat to bead seat. (The physical width of the rim is larger by 2 times the thickness from the bead seat to the outer face of the rim.) Backspace is measured in inches and is the distance from the hub mounting surface of the wheel to the outside face of the inner (car side) rim. Offset is measured in millimeters (mm) and is the distance of the hub mounting surface to the centerline of the rim. If the hub is closer to the street side the offset is positive moving the tire into the vehicle. If the hub is closer to the car side the offset is negative moving the tire away from the vehicle. In the example of wheel width 9", backspace 4.5", and offset -12mm the thickness of the rim is 12mm or .472". Just under a half inch making the outside width of the wheel at the rims just under 10". If you increase the negative offset to -18mm this will decrease the backspace to about 4.25". If you want to keep the 4.5" backspace you will need to increase the wheel width to 9.5"
If the original wheel was a 7.5" wheel width with a 6" backspace the offset was +44mm (1.75")
Note: Rim is the outside diameter of the wheel that holds the tire bead. The inside rim is towards the vehicle, outside rim away from the vehicle.
You explained really nicely. Thanks a lot.
Great video, Josh. Thank you.
Thanks for the video. I was definitely confusing offset for backspacing 👍🏾
Hey Josh. Great video! Just what I was looking for. One question--Does having a negative off set increase the likelihood of getting the dreaded death wobble?
The width of your rim, and or tire, has zero affect on the death wobble scenario. Though a wider track is more stable, the steering shake comes more from loose steering and suspension components then from tires... hope that helps. Thanks for the kind words! 😀
I need this video for 90's Tacomas...
Ditto with the previous comment. Awesome, explanation.
Really WELL explained .
how did you make this so easy to understand? you earned a sub
Great presentation, teaching is a skill you have to
Wow! Very clear explanation...thanks so much. By far the best I have found.
Excellent and easy to understand video. Thanks
That was awesomely explained. My dilemma is just that. But for wheels and tires for my Gladiator Sport S. Going with 33's and 17 inch rims. Now...offset?
I just bought a 2023 Gladiator Rubicon. I’m going to go with
35-11.50R17 Falken’s. I want to keep my new wheels as close to OEM offset.
Great video really helped me when going to look at wheels for my 2021 JL!
Hi, great explanation. Does this setup put strain on the ball joints? Should I be even worried about it?
No, this setup I discussed in the video would not add stress to the suspension. No worries
Very helpful. Can you recommend the best place to purchase wheels and tires?
Depending upon where you are in this country, some of the best values I have found are either on discounttiredirect.com or wheelpros.com
WOW NICE INFORMATION.. WHAT DO YOU THINK ABOUT WHEELS SPACER IF I ONE STICK WITH THE JEEP WHEELS....
Though I have used them in the past, I do not condone wheel spacers for anything more then a temporary solution to a clearance issue while waiting for wheels to arrive. They put too much negative pressure on the hubs and can cause damage to components like ball joints and Bearings. In addition, they can easily become detached if not installed 100% correctly, leading to a wheel off situation. JMO
You are The Best period!!!!!!!
Thank you! 😀
Great video man.
EXCELLENT Information and explanation. Thank you.
Outstanding video. Concise. Straightforward and without bias. I’m still torn between 17x9” or 17x 8.5”(does it matter??) wondering if a 315/70KO2 will stick out just enough on a Rubi if I go with 0 on the offset. Thanks!
Thank you! I would go 17x9 as later, if you wish to bigger on tires, you can use the same wheel. Be sure the back spacing is accurate for the tire size, and if it were me, I would chose a -6 offset or more for a nice mean look. 😉
Awesome content
Thank you!
Just got a 22 jl, this video helped me out a lot. 👍🏽
Glad to hear! 😀😃
How can you have the same backspace but different offsets? Both measurements well be determined by where the lugs connect. To change the offset are you adding spacers?
Back spacing is set by the lug nut mounting surface. However, offset can be changed with rim size. A 17x9, a 17x8.5 and a 17x9.5 can all have the same backspacing. But the offset will change. Therefore why I said changing one does not always change the other.
That was a very good explanation but for me it only clarified the back spacing for your specific tire and wheel setup. What if the wheel is wider than 9in? I’m still a little lost, someone help me out here.
When you start getting wider in rim size, the offset tends to change more. For example, on a 9" rim with 4" back spacing, you can see anywhere from a zero to -6 offset. Make it a 9.5" rim and same back spacing, now you can see up to a -18 offset, make it a 10" rim and you could see up to a -32..... keeping the back spacing the same, but growing the width, and the ratio for where the center of the tire to the hub changes.... which is why back spacing and Offset are NOT equal measurements.... though changing one or the other can affect each other....
Look, the wider the wheel over stock, the further it will stick out past the body.... easy way to look at it.
Hope that helps
Hey thanks for that explanation. Just to clarify my goal was to find a tirewith 4.5 backspacing for my lift choice. It say it need it to clear the shocks mover. Now the wheel i was looking at is the aev they only come with a 5.77 backspacing so these rim will not work without out hitting my shocks.
True, and AEV has always tried to keep their products as close to stock as possible. But with 1.25" or larger wheel spacers, you can use the same wheels
True, and AEV has always tried to keep their products as close to stock as possible. But with 1.25" or larger wheel spacers, you can use the same wheels
@@JeepingForBeginners thanks the shock mount on the metal cloak are not needed 100%. They do say they are best so you can get the full affect of the flex or something like that. I will keep the spacer in mind.
Clearly outstanding!
Thank you 😊
I have a 1993 Chevy Silverado 1500 standard cab short bed 4x4
What would you recommend for a good stance on a 17” wheel?
Please give me tire size and wheel specs.
Thanks
Great clear explanation.
Can you run this set up on a factory lifted 2021 - JL?
Hi Mr. Josh can you text me those exact sizes for the tires and the off sets when get chance I would totally appreciate it sir.
Omg, thank you for helping a girl out!
Hi Nice video! Question i have 285/70 r17 can i fit a Wheel et-12 4.5 backspace jku 2014 without rub? Got another option et-14 4.45 backspace. Watch do you think will by better option? Thx
Both would look and handle about the same, 4.5 back space is a good fitment.... 👍
Great video this made it easier for me to understand it better since I’m just learning on what all the terms mean. So if I was to get a 255/40R18 on the front with at least 3.5-4 backspacing & 275/40R18 on the rear with 4.5 backspacing. I should get a 18x8.5 in the front & 18x9 on the back right? I want my rear wheels to stick out bout how you have it in your video is that correct?
What kind of vehicle are we talking about? Just curious based on those tire sizes.
@@JeepingForBeginners it’s a 2007 crown Victoria police interceptor. Wanna make sure I understand you correctly.
soooo how do u set the backspacing??? doesn't a negative or positive offset affect the backspacing?
I have a 2021 wrangler unlimited rubicon JL which currently has 20x9 fuel assault rims on it 35” tire offset seems to be 1 they do poke a little I’m looking to go with 18” wheels should I stick with the 9” width and offset I’m lost think -12 would be okay and not stick out to much I am running stock suspension any info would help me thank you
Great video Josh!! Finally someone knows how to explain properly. My only question I’m looking to same exact. My only concern does the -12mm offset put stress on the wheel bearings now that your pushing it out or with the 4 1//2 off set that compensates? Thank you. I’m looking to pick out rims in the next week or 2 great channel by the way!!! Subscribed here
Clear as mud.. if you change the offset, you change the backspace and vice versa. Just different units of measurement
Well explained brother
hey got a question. what settings do you recommend for a rubican with 33inch tires and i want to go 17x9 rim. what backspace and offset do you recommend? i would like the tires to stick out around an inch past fender. i was thinking -6mm for offset but i have no idea about backspacing. thanks!
Like I said in the video, the back spacing is dependent on the tires desired width. Most 35s are 12.5 inches wide inflated, and average of 2 to 3 inches wider then stock. So after measuring your stock back spacing, (probably 5.5 to 6") then remove half the increased width of the tire (1 to1.5") you would set yourself an acceptable BS of between 4.5" and 3.75"..... in order to get this number exact, you need to pull a tape measure.
I use 3.75" of back spacing myself with a -32mm offset on my current wheels and they look badass personally. But it's up to you.
Hope that clarifies how to do that math to figure it out....
@@JeepingForBeginners thank you
This is what I'm trying to figure out on my recently purchased 15 grand Cherokee since it has a narrower wheel well compared to a Wrangler. So if the factory standard states it has an ET56 offset with the oem 20x8" wheels and running on 265/50r20 and I move down to an 18x8" wheel that has an ET35 offset on 275/65r18 giving it a difference of 21mm, am I pushing the wheel out by about almost an inch since 1 inch is equal to 25mm?
Hey great video and thanks for the explanation, but I still don’t understand all that brewhaha. I currently have stock wheels and tires on a 2”lift with spacers so my wheels are even with my stock finders. I want to go to a 34” tire on a 17” wheel and get rid of the spacers and still have my wheels even with my finders. What rims size would I need to accomplish this?
Great video it definitely helped. My question is what size tire do put on this for the look? I currently have the stock set so I have a 245/70R17 now and the new rim is the size you have. It’s a daily driver no lift I don’t want it to big or to wide just a good look that functions
So did you find out? I havevthe same exact question v4runner
Factory height 2009 2 door Rubicón. I want to fit 33 15.5 15. Super swampers tsl sx Will It work
jeep tj here. 4 inch lift with 4 inch flares. wanting to run 33x10.5 tires on 15 inch rims. i want my wheels to line up with my flares or a little out but not sucked in since the tires are narrow. what backspacing and offset would achieve that?
Hey Josh. Super grateful for all your doing. I chatted a little with awhile back about shocks/springs.. now working to get to a rolling chasis for my 79 cj7 build. Im looking for just the sidewall bulges to peek out from under the oem flares. Heres what i have and my thoughts. With your experiencs i thought I'd ask.
2.5" BDS LIFT
NO OTHER suspension mods
15x8 wheels
32x11.5 tires
Which would give me the look described?
4"BS with -12mm offset
OR
3.75" BS with -19mm offset
??
The first choice would probably work, if you are looking for just a little outside the flare. A nice solid look for an 8" wheel, but the second option I think would look better....
@JeepingForBeginners the second option. Would put it further out another 1/4" ? Is that right?
Yes, I believe it would
@@JeepingForBeginners thank you so much for taking the time that you do. Grateful my friend. 🙏
Hey bud. One more question. If I change the AMC20 rear end from two axle to single and do a drum to disc conversion, does that change up the stance if I stick with 4"bs and -12 offset?
Simply marvelous, you aced it.
Thank you for this. I just subscribed😊
So will the 17”x9” rim with the 4.5” backspacing and -12 mm offset give me the same stance if I get the 33” tire instead of the 35” ?
Theoretically, yes. The rim will. But 33s are available in different widths themselves... so keep in mind that too.... so the last detail to have the same "stance" as those i showed is the tire would need to be 12.5 inches wide. 😉
I have a 2021 JLUR, 4 door Rubicon. I want to change my factory wheels with the 285/70R17 to a Method 703 wheel that measures 8.5x17 with 315/70R17 BFG K02 tires. The wheels are zero offset with 4.75" backspace. So far, so good, right?!! Now my question, do you think a small lift is going to be necessary for the occasional back country wheeling? No serious technical rock crawling. I've read some awful reviews of the Mopar 2" lift (which actually seems to lift about 3"-3.5"). My wife would have issues trying to get in and out easily if I go much more than the added lift from the 35" tires. Plus, I don't want to run into squabbles with my Mopar extended warranty. Help is appreciated with your experienced advice.
Thanks for all that info
opinions on 17x9 wheel with 4.75 backspace and -6mm offset with 2 inch spacers for 37 inch tires?
Wheels are good, no need for the spacers.
I need help...I want to run 37s on my wrangler on 17s. Was thinking 9.5 wide. But...do i need -12mm offset, or backspacing?
WHEEL OFF SET CENTER IS 0 - POS AND NEG IS FROM 0. Offset usally listed in millimeters,one millimeter is 39.37 thoudands of a inch.So 25.4 millimeters is 1 inch, 19 mm is 3/4 of a inch, 13 mm 1/2 inch, 6.3 is 1/4 inch. My thinking is make shure tape measure has mill and inch fractions side by side, makes coversion quick and easy. Be very carefull using hub spacers.
Best video ever… Thank you! 🙏🏾
do you need back spacers if you choose the correct offset rim?
I never recommend spacers, so yes, with correct back spacing, you will not need spacers
@@JeepingForBeginners Why not? Spacers are a standard on jeeps
I still don't get it. The width of the wheel is fixed so if you change your offset that will move the mounting face, therefore changing the back space. If you change the backspace which is also measured to the mounting face that will change the offset. You can't change one without changing the other. Am I missing something?
Excellent explanation! I have a follow up question. So a wheel that is 9 inches wide with 4.5 inch backspacing will always have -12 offset? Essentially adjusting one of these values (backspacing or offset) should uniformly adjust the other. Correct?
And that's has always been the confusion. But no. You can get that wheel, with that backspacing in three different offsets, 0mm, -6mm and -12mm.... some companies offer a fourth at -18mm...
It would make sense the offset would outweigh the BS... but it doesn't... they are two different measurements. Hence what I was trying to explain.
@@JeepingForBeginners Thanks for the response. I am having a hard time wraping my head around this. I am upgrading from factory to 35's and want to make sure I understand this right. So please bear with me.
Lets take your wheel for example; width (9") and back spacing (4.5'). Keeping both of these constant. Assume the offset for that wheel is 0 where in the hub sits perfectly at center line of the wheel and in direct contact with the mounting plate. Now if we want to change the offset such that the hub sits slightly inward of the wheel hence pushing the wheel out (a negative offset). Since the hub and the mounting plate are in direct contact wouldnt that pull the mounting plate closer to the lip of the wheel and reduce the back space measurement.
I hope I am not missing something rudimentary. Did watch the video twice!
At 6:32 you measured the back spacing and it looked like 5" the tape was on 5.
I did not totally understand backspacing and offsets until watching your video. Job well done. Now that I can see the difference between a 0 and
-12, it's less than a 1/2 inch, which do I choose for a 22 Gladiator Overland. Thanks for your wheel education!
So can I get a rim that has a backspace of 4.5” and with 18mm an offset? Is this the same rim as with a 6mm offset?
Yes. But the width will be 1/2" different
I’m going to run the rough country 2 1/2” suspension kit with coils. I’m looking to run 18 x 9 with 35” tires if I do a -12mm off set and 4 1/2” back spacing would that reduce the life of my wheel bearings?
The offset on the rims is not what is going to stress the Bearings. The weight of larger tires will.... regardless, over time, they will wear out... I run 37s now on a -38mm offset and jeeps runs out fine, but eventually...... make sense?
@@JeepingForBeginners thank you for the heads up
hi
could you please tell me the size of the alloy. I'm planning to upgrade my jeep JL alloy and tire to 35/12.5/11/R17 so what rim size should I choose ?
I would use 17x9 with a minimum of 4.5" backspacing. Just like I explained in the video.
Great info thank you !
I bought Mickey Thompson Classic 3 wheels. 35's on 17 x 9, 4.5" back space and -12 offset! I guess I got it right!
Amd I bet they look right on the Jeep too! 😉
Does a lift kit have an effect on the measurements you choose for the rim? Or that is just for tire size?
Some lift kits upgrade to larger sway bar links, which yes, would require a specific back spacing measurement. BUT, those kits will specify when that is needed
what about 33" x 11"? 4.7 backspace and -6mm ok with no lift? on a 2017 Rubicon Recon
What do you think about spacers?
I am not a fan of spacers as a fix to the backspacing issue. They tend to cause excessive wear on Bearings and can fail over time. However, as a temporary stop gap until a appropriate set of rims can be purchased, they can work. But spacers are not a solution, ever. Just a poor bandaid. In my opinion
is that readymade mud fenders above the wheels?
HI bro wath do you think 15 wheels on 33x12.5 r15?
Thanks, helped a lot.
Yep
Clearly explained 👍🏼
Thanks you 👍👍