I found that tires on wheels with smaller internal diameter wheels usually measure much wider than wheels that have a wider internal diameter giving that bulgy light bulb look. The Continental GP 4kII 28mm measured around 30.30mm on my wheels with about 17mm internal diameter. These tires are known for the bulge. The newer GP 5k 28mm tires measure pretty much at 28mm. I use 25mm GP 4kII on one bike, but they measure at just over 28mm. I use the 28mm GP 5k tires on my wider wheels and they measure right at 28mm for my 2nd bike. Once I stepped up to the 25mm and now 28mm tires, there's no going back to those 23mm tires; they have been relegated to indoor trainer use. The 28s are just so comfortable...90psi (rear) and 80psi (front)...down from a whopping 120psi for the 23mm tires. I always liked high pressure in my tires stemming from my riding days in the 80s on those really skinny tires.
I fitted 28's on mine and would never go back, so smooth and comfortable, i have hit potholes that would have punctured a 23 no doubt. Great video, i never thought about actual widths. Thanks.
Had to watch this video away from my 21.5mm tubulars, who were starting to feel inadequate. Great video! I now have a Roubaix with 28s, and it’s a really different experience.
My labeled 28 mm Continental GP 4 Seasons actually measured out at 31.4 mm! This is on a rim with an internal width of 19, so not crazy-wide at all. Now running the new Bontrager R3, labeled 28, and measuring around 28.2 mm actual width.
i havea giant that came with 26 and wanted to upgrade to 28 but i was very skeptical on the clearance so i didnt order good thing they were the continentals you have there so you saved me i guess i will stay with 26 👍
This was a very informative video. I ran across it because I'm making this decision right now. Have a couple old steel frame racing bikes and I'm wanting to put 28s on them... I'll start measuring.
Another thing favouring the wider rear tyre is that you’ve less of an aero penalty for it back there, cos the air that hits it is already plenty disrupted.
Changing from 23 to 28 on my road bikes was the best thing I ever did comfort wise completely transformed the ride and more confident handling with no drop in speed 😊
I use to run 23’s on my old bike and just bought me a Scott Addict RC which came with 28’s and my Weight is about 165 pounds and they are very comfortable to ride on
I'm 6'2 185lbs, I really like the pirelli tubed tires. 23mm front rated 125psi at 120 psi. 25mm rear rated 115 psi at 110 psi. Just a nice handling ride. Oh, inner wheel width is 17.5mm.
@@joerenner8334 yeah, 28mm rear and 25mm front, but the ride always felt like tires were flat. I guess I like to feel the road. I may give it another go... These wheels are a little wider that my others.
Back in the 1960’s in the UK, 27”x1 & 1/4” was a normal wheel size. 700 x 32 soon followed, then 700 x 25/28. Tyre technology has advanced greatly since those days, and your advice on the current range of tyre widths is so helpful. 700 x 28 is my favourite choice.
Very useful information as always. Thank you. Would be nice to know tire width impact on riding resistance. Do you waste more power with larger tires like a 28mm vs 23mm?
I have found that the inner rim dimension will affect how much a tire expands beyond its rated tire size. basically, a rated 25c but end up different on two different rims based on the rim profile dimensions.
That is correct. You have to ensure that your rim can accommodate a wider tire with no issues. I don't mind the variation, because it happens frequently.
I own 3 road bikes. Fully 28s on one. Waiting to wear out the 23s on the others, so I can put 28s on those too. Fortunately, all my frames and brakes will accommodate. 28 is that sweet spot for me.
Great videos man ! Can you please try out tubeless 28c gp5000 and compare it to clincher gp5000 with latex inner tubes ?! That would be very helpful and informative 👍
28mm tubeless compared to 25mm standard tyres on a road bike the difference in comfort is really apparent, almost feels like riding with suspension now.
lower tire pressures is also a good arguement for using tubeless tires. I use TL 25mm @ 80psi on my rigid, aluminum bike. It made the ride quality so much more acceptable. I'm no longer hopping and skipping over road imperfections, like I use to on my 110-120psi tubed tires.
@AG Coarseman Why do you think it is 'laughable' for TL tires to run at 50-55psi on certain wheels? Have you tried the arrangement - I have and it works well for me.
I do the same run 25’s supple race tires from late spring/summer/early fall, and on winter/Wet/fall conditions switch to 28 winter grade-thread rubber grade tires. ex. Continental’s 4-seasons and have never gotten a flat (Expensive but worth every cent)
Yes mate sesame with my TOFU high-performance Carbon tire on my front it said it was 23c but when I pump it up looks like 25 c lol but I like it cause I feel comfortable in the road with less vibration.
Rene Herse tires have the most comfortable ride and you can really feel it. They have a 26 that feels like a 28. The tires have supple casing and after riding them its hard to go back to another brand.
Just discovered your channel - Wonderful content - I have been looking to go to 28's from 20's and 23's (my Serotta frame will accept it) - But as I measure tires for actual width vs stated, one thing I am consistently seeing is that the" height" of the tire, measured from the top edge of the rim to the top of the tire rubber (apex), is usually less than the tire's measured width. And the larger the tire the more pronounced this becomes (radically so once you enter the realm of PLUS sized tires... but that's another discussion). Even with 20's and 23's I consistently see a 1mm difference in height and up to a 2mm shorter height than the width measurement. (of course more with worn tires) So Eldrid, may I ask, did you measure the "tire height" when you were measuring tires width? I always assumed (historically for my riding history) that tire height would be the same as the width, but after a week of measuring tires, and frames, and brake clearances, I think the "width=height" assumption is a false assumption on my part. Could you relay your tire "height" measurement at the same PSI on the same rims? (also what was the internal width of the rims you did the measurement on? (rim width definitely affects tire shape and at the more extreme tire heights). If you mentioned the rim internal width. I missed it and I watched the video 2x) - Thanks in advance for any insights on this. Thanks too for your clarity on so many other topics. Very nice to get so many confirmations of what I have come to know over the years.
I did not measure the rim in the video, just mentioned that the tires rubbed on my brake caliper. You are right in that the height of the tire plays a factor in determining the clearance as you go larger.
@@shwndh - That is consistent with my findings as well. The biggest factor I have seen (besides actual tire size and manufacturer) is internal rim width. Narrower rims give a narrower tire profile and the opposite is true when you use a wider rim... Cheers!
I put a 50 mm tire on my bike because with its’ clearance I could and it was Winter… However, now is Summer and sometimes I sense the wheel wobble and that turning sharp in slow speeds are hard… Is this correct or just me not used to race bikes? Will a 50 mm tire make my bike hard to maneuver in slow speeds among cars in traffic for example, and me looking down at the tire and sense it wobbling, is that posssible as a consequence to the tore being so wide and heavy? Or is that only due to the bike mechanic having not i stalled the wheel correctly? Thanks! Am considering going down to 28 now for the Summer and put back the 50 when the snow comes out…
Wobbles in the wheel can be caused by loose hubs, faulty bearings, faulty spokes & etc. Take the bike to a mechanic and tell them what problems you're experiencing, so they can be resolved before you injure yourself while riding.
@@Veloharmony thanks! I got really worried for a while downhill in a steep curve the other day, but the wheels cannot just snap right and fall out? I will take it to a mechanic asap… something must be wrong if it is nit just the weight of the 50 mm tire that makes it wobble?
Wider tires have lower rolling resistance but higher aerodynamic drag. At slower speeds, less than 20mph, wider tires can be faster. But as speed increases, aero drag goes up exponentially and thus wider tires are slower. If comfort is your primary objective, wider is better. If speed is your objective then 23 mm is still the sweet spot
@@Veloharmony correct. It's very simple. The optimal tire width is one that is 1 to 2 mm narrower than the external rim width. For example, a 23 mm tire will have optimal aero profile when mounted to a rim that is 25mm wide externally.
Wondering about your thoughts for my question. I have a 2020 Trek Madone. It has the IsoSpeed that helps "soften" the ride, or "stiffen it". The wheels I have are the Bontrager Aeolus XXX 4. All of the specs for the wheel says it's "optimized" for a 25mm tire. 25 is what I'm riding now. I'm wondering about going to a 28mm tire, but with the IsoSpeed and the fact that the wheel is "optimized" for a 25, would a size 28 really make any difference in comfort or speed or anything? I appreciate your time.
Joshua, I put very little faith in marketing claims. That being said, you will really just have to try the 28's. I have found no problems going fast with the 28's and in fact, it has been my experience that the more comfortable I am, the faster I am. I have in fact returned to using tubular tires on my Colnago just to enjoy the comfort. A lot of the claims from manufacturers are based on controlled environments, like wind tunnels etc. The final decision is best made on the road. I don't think you will be any slower on those wheels with 28's. The 28's are definitely more comfortable, especially for bigger riders.
I have a Bianchi Pista and would like to go 28mm but the cheap round fork top probably would rub on the sides. Only running brake on the rear. 23mm as current.
Hi, I'm Jose new to the channel and learning a lot here. Vittoria says: inflate tires to the rated psi printed on the tires. Mine are rated 100 to 130psi. Like you said: anything after 100 psi you bounce a lot. Can I do 80 to 90psi on my Vittoria Rubino Pro tires and be safe? I'm 5'-8", 140 lbs. Thank you much for this fantastic channel. Great work.
Vittoria recommends. You can do whatever works for you. I inflate my front tire to 90 and I put 95 in the rear. When it rains I lower each by 5psi. You should try different inflation pressures and find what gives 'you' the best ride. Put more air on the rear tire, so you could try 85 front and 90 rear. My friend Paul, runs his tires both on 90psi and we both have used Rubino Pro tires. Just don't go crazy and go too low. You're looking for comfort without sacrificing performance. So maybe try not to go below 85psi. Good luck and welcome to the Veloharmony Cycling Education channel.
I was wondering if the diameter of the inflated tire changes if you mount it on a wider rim. I have a pair of 19mm wheels as well as a 23mm exterior width rim.
I use 28mm but I'm a pretty light rider (120 pounds), do you think I'll benefit from switching to 25mm? I have a secondary set of wheels with 32mm and they so comfortable but I can really really feel the difference when climbing. Thanks!
I’m 70kilos or 160lbs so I would say that 25 or even 23/ can benefit you probably give you more speed. I use 28mm and on my last fixed gear I had 25mm and it ran like a charm. Also I prefer continentals ultra pro
True. I just didn't want to bother with having to paint to match the rest of the frame at the time, but that is an option. I have Enve on my Kish bike which will even take a 28mm tire in the front.
I have a 25. I weigh about 190. So as I understand it I should use a 28. My question is I keep getting flats. Wheel ok inner tubes go boom. All the dang time. What can I do? Any inner tube advise? I do have a tire liner too. FYI
Don't know if this will help but you might try to remove the rim liner and run your fingers throughout the rim to check for any sharp protruding burrs. You may be surprised what you find..
I had to get that one www.veloharmony.com/recommended-cycling-products/#seatposts because the seat angle is a bit more forward than I need. It has a 3.2cm setback.
Please suggest me, if i give the combination to my road bike, 26 mm front 28 mm rear or the same size for front and rear tire?, which is better for any extreme turns on road? I will using the pirelli zero race tire
So, I’m riding 700c x28 on my road bike. I have the availability of a tight gravel trail to ride on ,and want to put on gravel tires. I have a set of 700 x25 wheels,can I put gravel tires on them and still function properly? Help. Thanks
If you have the clearance, the bike should function fine. I don't have enough information to advise you further. You can join our live session today at 6:00pm CDT and try using a super chat to get to the head of the line.
Let us know if it fits. You need a about 5mm clearance to be safe from obstacles getting stuck between the wheel and the frame or the brakes. If the 28 doesn't fit, the 25mm should work fine. They even have 26mm tires out there as well.
Hi planning to put 700c x28 on my old bike specialized ruby 2010 coz planning to used as gravel bike what tire (brand,model etc.) Can you advice thanks in advance
In a manner of speaking possibly. The width of the rim, actually the depth of the rim affects the inflated size of the tire, which is affect the clearance when mounted on the bike.
Find out what your rim width is and that will guide you. Yes, you can put narrower tires on a bike, but there is a minimum size for your rim. ... With so many different tires sizes from which to choose, you may want to go for narrow or wide ones depending on the purpose for which you need a bike. if in doubt, check with your local bike shop. Mounting too narrow a tire for your rim can cause the tire to get too square of a profile. The result is a more exposed sidewall, which can be prone to cuts. So good luck but tread carefully.
Ian, comfort is comfort. 25C will work just fine. I mostly use 25C tires as a good all around size. The 28C is even more comfortable than the 25C, but for your size, the 25C should be just fine.
The size stamped on your tire is the official size. Tire inflated sizes vary with different rim depths. Your tire size is 27 X 1 1/4 which is close to 700C X 32mm theoretically.
Yeah man love wider tires. minimum 25's ideally 28 or even 32. Hell I have a gravel bike with 47mm semi slicks and while it's a little slower i don't mind doing mostly road rides on them.
You have a 29mm Tire...the 700 is the wheel size that you can use that tire on and the 29 is how wide the tire tread is (theoretically) when you inflate it. You will theoretically have 29mm of rubber on the road. I say theoretically, because as explained in the video, the width of your tire may vary based on the width of your rim.
My roads here are that bad! That you need 32mm tyres to have your mind at ease. We are talking about hilly potholes! Some cover the whole road in a line. Some are hidden. Terrible roads i swear. And i know that fixing them costs a lot. And surely nobody will ever do that.
Good video. I just swapped from 25s to 28s and noticed a good difference in comfort with no perceived drawback on speed. Taller rider here at 6'3"
Thanks for sharing!
I found that tires on wheels with smaller internal diameter wheels usually measure much wider than wheels that have a wider internal diameter giving that bulgy light bulb look. The Continental GP 4kII 28mm measured around 30.30mm on my wheels with about 17mm internal diameter. These tires are known for the bulge. The newer GP 5k 28mm tires measure pretty much at 28mm. I use 25mm GP 4kII on one bike, but they measure at just over 28mm. I use the 28mm GP 5k tires on my wider wheels and they measure right at 28mm for my 2nd bike. Once I stepped up to the 25mm and now 28mm tires, there's no going back to those 23mm tires; they have been relegated to indoor trainer use. The 28s are just so comfortable...90psi (rear) and 80psi (front)...down from a whopping 120psi for the 23mm tires. I always liked high pressure in my tires stemming from my riding days in the 80s on those really skinny tires.
what internal width are your wheels that use the 28mm tires?
@@ayowser01 They are between 20 and 21mm. I forget exactly. I have to check to see if I wrote down the measurements
Diameter isn't the word you wanted.
I fitted 28's on mine and would never go back, so smooth and comfortable, i have hit potholes that would have punctured a 23 no doubt. Great video, i never thought about actual widths. Thanks.
Thanks for sharing
Weird, i've been running 23's for years & have never gotten a puncture from a pothole.
Had to watch this video away from my 21.5mm tubulars, who were starting to feel inadequate. Great video! I now have a Roubaix with 28s, and it’s a really different experience.
Thanks for sharing Fred.
What year was your bike from
My labeled 28 mm Continental GP 4 Seasons actually measured out at 31.4 mm! This is on a rim with an internal width of 19, so not crazy-wide at all. Now running the new Bontrager R3, labeled 28, and measuring around 28.2 mm actual width.
I've settled into 25mm tubeless. Rolls fast and at 80 psi it's very comfortable. Great information Master Legend.
Good to hear!
i havea giant that came with 26 and wanted to upgrade to 28 but i was very skeptical on the clearance so i didnt order good thing they were the continentals you have there so you saved me i guess i will stay with 26 👍
Went from 23s to 28s. Never going back!
Wow, these explanations are just perfect. Glad I found this channel.
Welcome aboard! Everything here is mostly from experience and testing. We don't do theory here Tim.
Even tho I have gotten a lot of experience in the las 3 years, I still enjoy and watch your videos Eldred. Thank you!
I ride the specialized roubaix tires front 23/25 and rear 25/28 on my SL4 Tarmac. So comfortable at 95psi
At last... Some real world tire size advice. Thank you Sir. :)
Happy to help! Glad you found the channel.
Great evaluation. Thanks! I really want to try 27 or 28 but you made a great point--check the clearance first.
Glad it was helpful!
This was a very informative video. I ran across it because I'm making this decision right now. Have a couple old steel frame racing bikes and I'm wanting to put 28s on them... I'll start measuring.
You're gonna have to bite the bullet and mount a 28 and check for clearances at the pinch points: the brakes and the seat tube. Good Luck.
25mm is my preference
Another thing favouring the wider rear tyre is that you’ve less of an aero penalty for it back there, cos the air that hits it is already plenty disrupted.
I went from 23mm to 25mm on my Scott CR-1 and I will never go back! Much more comfortable and less sketchy on gravel roads.
100% prefer 28's on my race bike! Running tubeless at 72psi rear, 67psi front w/ carbon disc wheels.
How much you weigh bro?
Changing from 23 to 28 on my road bikes was the best thing I ever did comfort wise completely transformed the ride and more confident handling with no drop in speed 😊
That was my experience. I primarily ride 25's and 28's if the frame has the clearance.
I use to run 23’s on my old bike and just bought me a Scott Addict RC which came with 28’s and my Weight is about 165 pounds and they are very comfortable to ride on
i'm 200lbs i've been riding 25s for a few years, my bike can fit 28s, i'll be trying some with my next replacement. fairly excited.
You will notice the difference. I use 28's where I can fit them, but 25's due to clearance issues on two of my frames.
as a 220 lb guy on 23mm, this was good to hear.
I'm 6'2 185lbs, I really like the pirelli tubed tires. 23mm front rated 125psi at 120 psi. 25mm rear rated 115 psi at 110 psi. Just a nice handling ride. Oh, inner wheel width is 17.5mm.
Have you tried 28s? Because man, they are WAY more comfortable.
@@joerenner8334 yeah, 28mm rear and 25mm front, but the ride always felt like tires were flat. I guess I like to feel the road. I may give it another go... These wheels are a little wider that my others.
Back in the 1960’s in the UK, 27”x1 & 1/4” was a normal wheel size. 700 x 32 soon followed, then 700 x 25/28. Tyre technology has advanced greatly since those days, and your advice on the current range of tyre widths is so helpful. 700 x 28 is my favourite choice.
Very cool!
Nice Video! I'm new to cycling and was thinking of running 28s in place of my 40s for local events.
Go for it!
Why though? What is it you think you'll gain by doing that?
28’s is my weapon of choice for wheels. Nice presentation El
Thanks Dwayne.
Dwayne Randolph Mine, too.
Very useful information as always. Thank you. Would be nice to know tire width impact on riding resistance. Do you waste more power with larger tires like a 28mm vs 23mm?
Your video was very helpful. Thoroughly enjoyed and learned a lot. Thank you.
Glad it was helpful!
I have found that the inner rim dimension will affect how much a tire expands beyond its rated tire size. basically, a rated 25c but end up different on two different rims based on the rim profile dimensions.
That is correct. You have to ensure that your rim can accommodate a wider tire with no issues. I don't mind the variation, because it happens frequently.
Thank you for that video. Exactly what I wanted to hear.
Glad it was helpful!
I own 3 road bikes. Fully 28s on one. Waiting to wear out the 23s on the others, so I can put 28s on those too. Fortunately, all my frames and brakes will accommodate. 28 is that sweet spot for me.
Right on
Great videos man ! Can you please try out tubeless 28c gp5000 and compare it to clincher gp5000 with latex inner tubes ?! That would be very helpful and informative 👍
28mm tubeless compared to 25mm standard tyres on a road bike the difference in comfort is really apparent, almost feels like riding with suspension now.
Thanks for sharing Thom. If all my bikes would take the 28mm tires, it would be my choice on all of them.
Tires are trending back to the old 27 x 1 1/4 (32mm)
great technical video.. calipers to measure the tires is great. all tires are different.. great video
Thanks 👍🏾
Watching now as hoping this will help me decide.
Great video, as always
Glad you enjoyed it
lower tire pressures is also a good arguement for using tubeless tires. I use TL 25mm @ 80psi on my rigid, aluminum bike. It made the ride quality so much more acceptable. I'm no longer hopping and skipping over road imperfections, like I use to on my 110-120psi tubed tires.
Great point!
@AG Coarseman Why do you think it is 'laughable' for TL tires to run at 50-55psi on certain wheels? Have you tried the arrangement - I have and it works well for me.
I do the same run 25’s supple race tires from late spring/summer/early fall, and on winter/Wet/fall conditions switch to 28 winter grade-thread rubber grade tires. ex. Continental’s 4-seasons and have never gotten a flat (Expensive but worth every cent)
Nice vid. I like 28mm cause they're fast and comfortable.
Welcome to the channel. I fit the widest possible tire my frame can accommodate.
Yes mate sesame with my TOFU high-performance Carbon tire on my front it said it was 23c but when I pump it up looks like 25 c lol but I like it cause I feel comfortable in the road with less vibration.
Rene Herse tires have the most comfortable ride and you can really feel it. They have a 26 that feels like a 28. The tires have supple casing and after riding them its hard to go back to another brand.
Thanks for sharing. I checked them out, seems interesting enough to try them.
“If your bike can take it”, ALSO “Can your wheel take it? Inside rim width will be a limiting factor, especially on older rims.
Well done & thanks for making this :)
No problem 😊
Good 👍 I got a go to change tires on my bike 🚲
This video is very helpful
Glad it helped you. Welcome to the channel.
Just discovered your channel - Wonderful content - I have been looking to go to 28's from 20's and 23's (my Serotta frame will accept it) - But as I measure tires for actual width vs stated, one thing I am consistently seeing is that the" height" of the tire, measured from the top edge of the rim to the top of the tire rubber (apex), is usually less than the tire's measured width. And the larger the tire the more pronounced this becomes (radically so once you enter the realm of PLUS sized tires... but that's another discussion). Even with 20's and 23's I consistently see a 1mm difference in height and up to a 2mm shorter height than the width measurement. (of course more with worn tires)
So Eldrid, may I ask, did you measure the "tire height" when you were measuring tires width? I always assumed (historically for my riding history) that tire height would be the same as the width, but after a week of measuring tires, and frames, and brake clearances, I think the "width=height" assumption is a false assumption on my part. Could you relay your tire "height" measurement at the same PSI on the same rims? (also what was the internal width of the rims you did the measurement on? (rim width definitely affects tire shape and at the more extreme tire heights). If you mentioned the rim internal width. I missed it and I watched the video 2x) - Thanks in advance for any insights on this.
Thanks too for your clarity on so many other topics. Very nice to get so many confirmations of what I have come to know over the years.
I did not measure the rim in the video, just mentioned that the tires rubbed on my brake caliper. You are right in that the height of the tire plays a factor in determining the clearance as you go larger.
I find that the height increases with some tires more so than the width. Also, the rim width will give different profile results.
@@shwndh - That is consistent with my findings as well. The biggest factor I have seen (besides actual tire size and manufacturer) is internal rim width. Narrower rims give a narrower tire profile and the opposite is true when you use a wider rim... Cheers!
I put a 50 mm tire on my bike because with its’ clearance I could and it was Winter… However, now is Summer and sometimes I sense the wheel wobble and that turning sharp in slow speeds are hard…
Is this correct or just me not used to race bikes?
Will a 50 mm tire make my bike hard to maneuver in slow speeds among cars in traffic for example, and me looking down at the tire and sense it wobbling, is that posssible as a consequence to the tore being so wide and heavy? Or is that only due to the bike mechanic having not i stalled the wheel correctly?
Thanks! Am considering going down to 28 now for the Summer and put back the 50 when the snow comes out…
Wobbles in the wheel can be caused by loose hubs, faulty bearings, faulty spokes & etc. Take the bike to a mechanic and tell them what problems you're experiencing, so they can be resolved before you injure yourself while riding.
@@Veloharmony thanks! I got really worried for a while downhill in a steep curve the other day, but the wheels cannot just snap right and fall out?
I will take it to a mechanic asap… something must be wrong if it is nit just the weight of the 50 mm tire that makes it wobble?
Wider tires have lower rolling resistance but higher aerodynamic drag. At slower speeds, less than 20mph, wider tires can be faster. But as speed increases, aero drag goes up exponentially and thus wider tires are slower. If comfort is your primary objective, wider is better. If speed is your objective then 23 mm is still the sweet spot
Depends on the rim it's mated to. Some rims are optimized for wider tires.
@@Veloharmony correct. It's very simple. The optimal tire width is one that is 1 to 2 mm narrower than the external rim width. For example, a 23 mm tire will have optimal aero profile when mounted to a rim that is 25mm wide externally.
My bike currently has 23 tyre i want to change it to 28 with same rims.. will it be ok?
Wondering about your thoughts for my question. I have a 2020 Trek Madone. It has the IsoSpeed that helps "soften" the ride, or "stiffen it". The wheels I have are the Bontrager Aeolus XXX 4. All of the specs for the wheel says it's "optimized" for a 25mm tire. 25 is what I'm riding now. I'm wondering about going to a 28mm tire, but with the IsoSpeed and the fact that the wheel is "optimized" for a 25, would a size 28 really make any difference in comfort or speed or anything? I appreciate your time.
Joshua, I put very little faith in marketing claims. That being said, you will really just have to try the 28's. I have found no problems going fast with the 28's and in fact, it has been my experience that the more comfortable I am, the faster I am. I have in fact returned to using tubular tires on my Colnago just to enjoy the comfort. A lot of the claims from manufacturers are based on controlled environments, like wind tunnels etc. The final decision is best made on the road. I don't think you will be any slower on those wheels with 28's. The 28's are definitely more comfortable, especially for bigger riders.
I love your bikes sir. 👍😊
I appreciate that! I love the simplicity of them.
Suggesting for wheel and tire set up for a rider over 350 on a fixie or road bike? And what psi?!
nice information, thanks
Glad it was helpful!
I have a Bianchi Pista and would like to go 28mm but the cheap round fork top probably would rub on the sides. Only running brake on the rear. 23mm as current.
If the fork is the only issue, replacing the fork will allow you more variety.
I ride 25mm in the front, and 23mm rear, both at 100psi, and honestly, I cannot even tell the difference.
It is advisable to put the larger tire on the rear, never on the front.
@@Veloharmony I wore out the rear and stuck my last 23 on figuring on switching later but I actually feel no difference after many km.
Hi, I'm Jose new to the channel and learning a lot here. Vittoria says: inflate tires to the rated psi printed on the tires. Mine are rated 100 to 130psi. Like you said: anything after 100 psi you bounce a lot. Can I do 80 to 90psi on my Vittoria Rubino Pro tires and be safe? I'm 5'-8", 140 lbs. Thank you much for this fantastic channel. Great work.
Vittoria recommends. You can do whatever works for you. I inflate my front tire to 90 and I put 95 in the rear. When it rains I lower each by 5psi. You should try different inflation pressures and find what gives 'you' the best ride. Put more air on the rear tire, so you could try 85 front and 90 rear. My friend Paul, runs his tires both on 90psi and we both have used Rubino Pro tires. Just don't go crazy and go too low. You're looking for comfort without sacrificing performance. So maybe try not to go below 85psi. Good luck and welcome to the Veloharmony Cycling Education channel.
@@Veloharmony, Today I tried your recommendation 85-90. Love it. Felt good on the road. Thank you much. Keep up the great work.
Just ordered a pair of 28mm tires hope they fit, wish me luck. It'll be close.
Good Luck Charles. Let us know how it goes. If it's too close, just use 25mms.
@@Veloharmony not enough clearance for 28's mm tires in the front, that's ok 25's are much lighter anyway.
@@charlescox4213 put 25mm in the front and 28mm on the back. I have used that combo...sweet setup
Gets many stares. Stylish and as light as a feather.
I was wondering if the diameter of the inflated tire changes if you mount it on a wider rim. I have a pair of 19mm wheels as well as a 23mm exterior width rim.
Yes, rim width does affect tire width. . Typically, the wider the internal rim width the wider, and shallower, the tire will be when inflated
@@rap122462 can I put 28mm tires on a 23 inter width rim?
@@saultorres3550 absolutely you can. This will work perfectly fine. Let me know if you have any other questions
I use 28mm but I'm a pretty light rider (120 pounds), do you think I'll benefit from switching to 25mm? I have a secondary set of wheels with 32mm and they so comfortable but I can really really feel the difference when climbing. Thanks!
I’m 70kilos or 160lbs so I would say that 25 or even 23/ can benefit you probably give you more speed. I use 28mm and on my last fixed gear I had 25mm and it ran like a charm.
Also I prefer continentals ultra pro
@@SanchoBohemian007
70KG is 154lbs or 11 stone.
Change the forks to an Enve or Columbus fork which can take 25 clearance still with a 1 1/8 Sarah
True. I just didn't want to bother with having to paint to match the rest of the frame at the time, but that is an option. I have Enve on my Kish bike which will even take a 28mm tire in the front.
Can i run a 28c vittoria tryre on a wheel with a 19mm inner width?
In my country (Brazil) the 25 is 3 times cheaper than the 28. Should I buy the 28 or 25?
Even going from 25 to 28 mm I find lot difference and more confident
Agree Sanjiv. There is a noticeable difference between the 25 and the 28.
@@Veloharmony thank u very much
Can anyone help? Ive got new 26c tires from Panaracer, but when I measure the width with a caliper it reads 24.5mm.
I have a 25. I weigh about 190. So as I understand it I should use a 28. My question is I keep getting flats. Wheel ok inner tubes go boom. All the dang time. What can I do? Any inner tube advise? I do have a tire liner too. FYI
That's not the norm. Get a competent mechanic at your local bike shop to look at your wheel to find out why your tubes are blowing.
Don't know if this will help but you might try to remove the rim liner and run your fingers throughout the rim to check for any sharp protruding burrs. You may be surprised what you find..
I totally agree, Great video, thank you for the tips sir
No problem 👍🏾
i put a 28 on my bianchi and it rubs a bit on the caliper ......i made it work by not fully seating the axle
Not recommended..it compromises your safety and the function of your rear axle. A 25mm might work better. The axle should always be fully seated.
What seat post are you using on your Colnago? Loving the setback!
I had to get that one www.veloharmony.com/recommended-cycling-products/#seatposts because the seat angle is a bit more forward than I need. It has a 3.2cm setback.
92kg on 26mm, would 28mm make much of a difference?
Please suggest me, if i give the combination to my road bike, 26 mm front 28 mm rear or the same size for front and rear tire?, which is better for any extreme turns on road? I will using the pirelli zero race tire
There's a charge for that: www.veloharmony.com/product/
I went from 42 to 38 on my gravel bike.
So, I’m riding 700c x28 on my road bike. I have the availability of a tight gravel trail to ride on ,and want to put on gravel tires. I have a set of 700 x25 wheels,can I put gravel tires on them and still function properly? Help. Thanks
If you have the clearance, the bike should function fine. I don't have enough information to advise you further. You can join our live session today at 6:00pm CDT and try using a super chat to get to the head of the line.
Great video thanks, I’m going to find out if I can fit 28mm to my Specialized Allez does anyone know if they will fit? Thanks
Let us know if it fits. You need a about 5mm clearance to be safe from obstacles getting stuck between the wheel and the frame or the brakes. If the 28 doesn't fit, the 25mm should work fine. They even have 26mm tires out there as well.
Hi planning to put 700c x28 on my old bike specialized ruby 2010 coz planning to used as gravel bike what tire (brand,model etc.) Can you advice thanks in advance
You can use our cycling consult service for that: www.veloharmony.com/product/cycling-consultation/
Sweet, I had to buy a new tire and she gave me 28 instead of 25
Can you really feel a difference between a 25 vs 28 or is the difference very small?
Big difference
Do rims with wider widths help fit bigger tires on the bike?
In a manner of speaking possibly. The width of the rim, actually the depth of the rim affects the inflated size of the tire, which is affect the clearance when mounted on the bike.
@@Veloharmony oh I see. Haven’t thought of it that way. Thanks for the response! 👍
Hi ..I have 700cx35mm tyre .can I replace this with 25mm ?
Find out what your rim width is and that will guide you.
Yes, you can put narrower tires on a bike, but there is a minimum size for your rim. ... With so many different tires sizes from which to choose, you may want to go for narrow or wide ones depending on the purpose for which you need a bike. if in doubt, check with your local bike shop. Mounting too narrow a tire for your rim can cause the tire to get too square of a profile. The result is a more exposed sidewall, which can be prone to cuts. So good luck but tread carefully.
Hey im kinda new in road bikes my max clearance is 28 and i am 80kg. 25s is enough?
I use 23/25/28..they all work fine, but have different characteristics.
ive got the shimano ultegra r8010 rim brakes , do 28mm fit ? Can you adjust the brakes for even bigger tyres ?
It’s the frame clearance you have to be concerned about.
@@Veloharmony ok thnx for the reply
Hi, Im a small rider, 5'3, 51kg, will i benefit in using 28c? Or 25c will do just fine? Currently using 25c @ 80psi, hope you'll notice me
Ian, comfort is comfort. 25C will work just fine. I mostly use 25C tires as a good all around size. The 28C is even more comfortable than the 25C, but for your size, the 25C should be just fine.
@@Veloharmony thanks a lot 😁
Good video! My tire measures 29.1 mm, what size is that? It says 27 × 1 1/4" on the tire.
The size stamped on your tire is the official size. Tire inflated sizes vary with different rim depths. Your tire size is 27 X 1 1/4 which is close to 700C X 32mm theoretically.
@@Veloharmony thank you!
Doesn’t the 23mm in the front make you go faster for when you put your head down for aerodynamics.
23mm vs 25mm ua-cam.com/video/hF9Q56XedJg/v-deo.html
Yeah man love wider tires. minimum 25's ideally 28 or even 32. Hell I have a gravel bike with 47mm semi slicks and while it's a little slower i don't mind doing mostly road rides on them.
Nice!!
are 23c, 25c, and 28c share the same rim?
Yes they can.
thank you for answering!
My tire says 700x29C. What size is that?
You have a 29mm Tire...the 700 is the wheel size that you can use that tire on and the 29 is how wide the tire tread is (theoretically) when you inflate it. You will theoretically have 29mm of rubber on the road. I say theoretically, because as explained in the video, the width of your tire may vary based on the width of your rim.
@@Veloharmony thank you! Is the width based on a particular tire pressure?
23 for 83kg not that confortable, thanks for This vidéo, have nice ride. BADR from morocco
No problem 👍
You keep saying diameter when you mean width......right???
The width of a circle is the diameter.
I went from a 35 to a 50 and love the 50 much better on my velomobile.
For Road cycling 25, if it ain't broke, don't fix it
My roads here are that bad! That you need 32mm tyres to have your mind at ease. We are talking about hilly potholes! Some cover the whole road in a line. Some are hidden. Terrible roads i swear. And i know that fixing them costs a lot. And surely nobody will ever do that.
Where do you live Xelsear? We've got our share of crappy roads, but we plan our longest rides in areas with decent road surfaces.
@@Veloharmony Greece
28' tires should be the standard for road bikes