I had to modify a lekkie BBSHD chainring to fit a BBS02 motor. The lekkie rings are really good for chain line issues. The one problem is the lekkie rings for the BBSHD/BBS02 are different and have different offsets. So we drilled new holes into the BBSHD lekkie chainring for the BB0S2 fitment and bored out the center a little to fit. Now the chain-line is dialed in really well.
@@kamaka71 They have different offsets. I needed the offset off the BBSHD version for my bike which has a BBS02 motor. The 52T BBS02 Lekkie ring offset is 6.5 mm the 52T BBSHD Lekkie ring offset is 18.3mm. I needed about 8 more mm offset the BBS02 ring did not offer. So I modified a BBSHD ring to fit a BBS02 motor. You have to drill new holes for the bolts and bore out the center a little to fit. But the ring will kiss the motor housing so I added some spacers to compensate.
YES, XACTLY THANK YOU!! I bought $1339 worth of Bafang motor, battery kit, and now with chain lift offs frequently I'm told by Golden Motor I need a Premium Lekkie Chain ring. well I thought $1339 was fairly PREMIUM!!
We cannot blame the bafang e bike kit on that matters because we have lots different types of bike frame, well i think to overcome this problem the Bafang should make an axle which is adjustable on both sides (motor and axle) to fit those e-bike fittings to get the exact alignment.
Rodolfo, I think we have more experience than you in this industry and in our opinion what Bafang did wasn't an improvement, most installations at the shop will be compromised if using that original chainring because of the shallow offset. What they should have done, is machining narrow-wide teeth on the 46T original BBSHD chainring and reducing the weight of that chainring, doing that they would have created a beast of a kit! However, Bafang doesn't consult the market, shop and dealers to know their opinion, and the results are what you see in this video.
Besides of the bad chainring offset, the new Bafang kit is crap.For example the use of new battery with new kit only iw very annoying. Please tell/write Bafang. We hope, they never stop BBSHD.
This issue is just the same on the Tongsheng. The donor bike that I used was where my problems began, l had to use all the shims to keep the motor from hitting the frame. This in turn moved the motor further than I wanted and meant that the three largest gears on the cassette could not be used as the chain came off the front ring. I have had to order a new chain ring (narrow/wide) and a chain retainer to keep the chain in place and allow me to use the full range of gears on the cassette. To date I am still waiting for the chain ring to arrive. The new ring will have a 10 degree offset opposed to the 7 degree offset on the factory fitted ring once again improving the chain ring. I believe that the companies have let the ball drop with this issue/design and they should have had solutions available to help us out. Not end up with an expensive product from another manufacturer.
Sorry Fellipe , Just saw your measurements on offset and you measured 19mm , my apologies for not watching until the end. Cheers ! Please disregard the question below.
The Luna eclipse chainrinh has about 25 mm offset and the lekkie bling ring has about 19mm offset. 42 tooth minimum is what you need. I have two bbshd builds and am speaking from experience.
I ordered a 40T lekkie chainring package for my trek marlin 4 to solve the chainline issue. do you think it fits or should I order a luna eclipse 42T instead? thx in advance
I agree , BBSHD chain rings aren't well designed and the conversion kit 46 tooth chain ring is super heavy. Other manufacturers are cashing in on their poor performance with chain rings.
I agree about that Marc. The new M625 motor has a better chainring in comparison to the BBSHD, however they’ve a small offset which makes difficult to engage 1st gear on the bike. That could lead to electrical and mechanical problems in the new motor
@@Cyberbikesau Just curious on the offset your talking about Felipe , how many mm away from the frame ? Are there offsets in the market that can fit ? I'm sure with your skills that you would advise the client to not purchase one and offer them a better alternative. Changing cogs in the back could be an extra expense.
@@marccardinal3137 Hi Marc, we haven't measured from the frame to the chainring, but between chainrings, it was 10mm offset to the outside (towards the right side crank arm). Replacing the original M625 Bafang chainring with the BBSHD chainring was the cheapest option for the customer, other chainrings with similar BBSHD offset would work fine but they are more expensive. I think that changing cogs on the rear would not change the overall chain line, so the best option was a chainring that is more concave and will bring the chain line closer to the bottom bracket and frame.
E got my hd kit last week make my build. Even when i saw that new model chainring a was excited, because the teeth are really nice i like them more than my bbs02b chainring 44t. But, but when i finish and look that chain..... fackkkkk 😂😂😂 too outside . I found on aliexpress new ring for 32£ with 24mm offset and i think to ordered otherwise must forget gear 1,2,3,4
I've had no issues with the standard disc. Now I go to use it on another bike and it drops the chain when it's on the largest rear cog on the cassette. It drops the chain from the chain ring
I should be installing an M625 tomorrow, assuming my bottom bracket tool shows up. It looks like the unit can be disassembled, and the cog can be spaced closer to the bike with some washers and longer bolts. I'll try that this afternoon. I can only move it 2.69mm (according to my feeler gauges) toward the center of the bike though, so probably not enough. It seems I've got yet another project that can't be completed without a trip to the hardware store ...
Washers and spacers will make the chainring further away from the bottom bracket which is a terrible thing because the original M625 chainring is already too far away from the bottom bracket. You might have to buy a chainring that’s more concave and will bring the chain line closer to the bottom bracket not away from it. My advice is to build the bike then see what adjustments have to be done
@@frcr90 Lol, no. I am talking about disassembling the chainring itself (it is two parts, bolted together) then spacing the cog CLOSER to the bottom bracket. There isn't much room to work with though. I measured and it will only move it about 2.5 - 3 mm closer before it would start rubbing on the motor housing.
4 x 2.5mm spacers = 10mm. Also before ordering a parts measure if it fits on your bike. I have a huge fat bike with 3 motors and the rear hub motor is a bafang 750w. Plenty of space to set it.
How are you going to space 4x 2.5mm = 10mm on something that is already 10mm outwards? You will end up with 20mm! I think you haven't understood where the problem is.
How are you going to space 4x 2.5mm = 10mm on something that is already 10mm outwards? You will end up with 20mm! I think you haven't understood where the problem is.
@@Cyberbikesau Maybe I didnt do the the job yet. my understanding is that the 46t is 10mm closes to the frame, if you put 4x 2.5mm = 10mm it will move the chainring away from the frame? I already instaled I think 5 x 2.5mm on each side of the the motor. My bike is larger than other bikes. Like I said I'm not sure I didn't do it yet.
@@electricbikeretrovintage I dont wan to move the chainring away, I want to move the chainring inwards closer to the frame, that's the topic of the video.
@@Cyberbikesau I just rewatched your video and I understand now. Me I'm replacing a 42t that is on my bike for a 46t. When I ordered the motor I wanted a 46t but the seller told me he didn't have it in stock and sent me 42t instead. So you are doing the opposite relacement than me. I'm doing the opposite than you. My fault. You don't mention that both of your chainring are 46t. My 42t is the same model as your 46t on the left.
Quick question Felippe about the BBSHD stock 46 teeth chainring , I'm getting conflicting measurements on the offset is it 16mm or 19 mm. Please let me know , Thank you very much !
depends on the reference point. From inside the chainring (the part that touches the granny gear on the motor) to the furthest metal of the chainring it's 20.6mm. From the inside of the chairing (the part that touches the granny gear on the motor) to the chain line it's 18.2mm
Hi David, no it’s not possible, the chainring is at its maximum. Spacers could be added but will require new chainring bolts and won’t give you 10mm internal offset which is what we need for the perfect installation
Lekkie is the top aftermarket brand, you can find generic chainrings as well that fit well. Focus on the design of the teeth and quality of the material
this has always been an issue because not all bikes are the same and its not that big of a problem.... its an easy fix just get the right chainring for your setup.
Yes, this has been an issue for a long time, and yes, each bike is not the same. How would you fix this problem without using another chainring? Your intelligence is welcome here. Felipe, from Cyberbikes.
@@frcr90 again it all depends on the bike that you're setting up if the chainring that you got isn't going to fit right you're going to have to replace it with another one that's how you fix the issue. Can't be any more clear than that.
@@davidbaird3560 Exactly that's what we've done, and the BBSHD chainring was the cheapest replacement for the customer. It's a bit frustrating because when people buy the kit they could add spacers to find the perfect fit for their bikes. Now with the M625 chainring, people will have to buy another chainring to finish off their builds.
Yes that could be an option, but good luck finding longer chainring bolts and spacers, super hard to find and the alignment of the 5 individual spacers can be very tricky
No you can't, the 130 BCD fasteners will contact the motor cover long before you reach a good chain line. There is no standardized chainring that will fit, 144 BCD is pretty close but for perfect alignment you need the Luna Eclipse or the (super expensive) Lekkie bling ring, or you can get reasonably close with the original style Bafang steel chunkosaurus 46T.
@Cyberbikes the bbshd 1000w mid drive motor was arrived yesterday and just installed the motor and find out the 46t chainring aren't aligned to the 8speed cassette on which in my ocular checking this won't go up to the biggest ring of the cassette, my concern, is this does not affect or it won't destroy both the motor and the cassette if it is not aligned? Thanks sir for the advise that you may give, more power to your channel.
Hi sir. Just subscribed. Love the channel. I have a 2022 giant talon 1 with 1/10 gearing. The BBSHD actually hits the chain stay before completely bottoming out on the bottom bracket. Would you notch out the chain stay and have it welded/reinforced or use spacers at the bottom bracket because if I just let it rest against the chainstay and righted the main nut, it almost tweaks the whole motor off center! Have you ever done this installation?
Usa spacers to leave the motor shoulder away from the chainstay, you MUST leave a gap between the chainstay and the motor shoulder 2-3mm is enough. The motor should only be held by the bottom bracket wall/cylindrical spacers, you might need a motor that has a longer bottom bracket length, for example your bike is 73mm BB and you might need a 100mm motor to make it properly centralised to the frame. DO NOT EVER cut the frame and weld it in another way, proper geometry and heat treatment are a must when dealing with aluminium.
Nope, using washers and spacer you would increase the offset and that’s not what we want. To fix this one has to machine the chainring, remove material, so the chainring can get 10mm closer to the bottom bracket
Please watch our video on how to calculate the range of your ebike ua-cam.com/video/IETUcrkjKZo/v-deo.html In the description, you download the battery range calculator from our website
"Bend the rear stays of the frame and it will be fine. I did." Glop you can't bend the rear stays of the frame, you made your frame more fragile and susceptible to failure. What you did is a very amateur fixing, we can't do that at the shop on a customer's bike.
Let me Tel u something guys bafang BBSHD is got 5 gears yes yesss sow that means u can only use BBSHD on single ring when no gears other u always going to hawe problems BBSHD 48V 750W this is wery powerful motor....to powerfull for shifting gears...only single ring can work whit bafang BBSHD
single gear would work, but you will have to choose, speed or torque or something in between. What you're suggesting is to build a car with only 1 gear, so when you're in the city you smoke everyone but when you're on the road your car cant go above 40km/h ahhaha or opposite, climbing a hill in the city the car would barely move forwards but on the motorway it would clock 150 km/h
I had to modify a lekkie BBSHD chainring to fit a BBS02 motor. The lekkie rings are really good for chain line issues. The one problem is the lekkie rings for the BBSHD/BBS02 are different and have different offsets.
So we drilled new holes into the BBSHD lekkie chainring for the BB0S2 fitment and bored out the center a little to fit. Now the chain-line is dialed in really well.
Well done, seems like you have access to great tools for the right job. Congratulations for reaching a successful installation.
For reference, the lekkie bling ring has models available for bbshd and also bbs02
@@kamaka71 yes but the BBSHD and BBS01/02 chainrings have different offsets.
@@frcr90 Thank you, i did not know that. 😉
@@kamaka71
They have different offsets. I needed the offset off the BBSHD version for my bike which has a BBS02 motor.
The 52T BBS02 Lekkie ring offset is 6.5 mm the 52T BBSHD Lekkie ring offset is 18.3mm.
I needed about 8 more mm offset the BBS02 ring did not offer.
So I modified a BBSHD ring to fit a BBS02 motor. You have to drill new holes for the bolts and bore out the center a little to fit.
But the ring will kiss the motor housing so I added some spacers to compensate.
YES, XACTLY THANK YOU!! I bought $1339 worth of Bafang motor, battery kit, and now with chain lift offs frequently I'm told by Golden Motor I need a Premium Lekkie Chain ring. well I thought $1339 was fairly PREMIUM!!
Each installation is unique, invest more and get it working properly
Thanks for your videos, very helpful ❤
We cannot blame the bafang e bike kit on that matters because we have lots different types of bike frame, well i think to overcome this problem the Bafang should make an axle which is adjustable on both sides (motor and axle) to fit those e-bike fittings to get the exact alignment.
Rodolfo, I think we have more experience than you in this industry and in our opinion what Bafang did wasn't an improvement, most installations at the shop will be compromised if using that original chainring because of the shallow offset. What they should have done, is machining narrow-wide teeth on the 46T original BBSHD chainring and reducing the weight of that chainring, doing that they would have created a beast of a kit! However, Bafang doesn't consult the market, shop and dealers to know their opinion, and the results are what you see in this video.
Besides of the bad chainring offset, the new Bafang kit is crap.For example the use of new battery with new kit only iw very annoying. Please tell/write Bafang. We hope, they never stop BBSHD.
I love the BBSHD, hope they never stop manufacturing it!
This issue is just the same on the Tongsheng. The donor bike that I used was where my problems began, l had to use all the shims to keep the motor from hitting the frame. This in turn moved the motor further than I wanted and meant that the three largest gears on the cassette could not be used as the chain came off the front ring. I have had to order a new chain ring (narrow/wide) and a chain retainer to keep the chain in place and allow me to use the full range of gears on the cassette. To date I am still waiting for the chain ring to arrive. The new ring will have a 10 degree offset opposed to the 7 degree offset on the factory fitted ring once again improving the chain ring. I believe that the companies have let the ball drop with this issue/design and they should have had solutions available to help us out. Not end up with an expensive product from another manufacturer.
Sorry Fellipe , Just saw your measurements on offset and you measured 19mm , my apologies for not watching until the end. Cheers ! Please disregard the question below.
The Luna eclipse chainrinh has about 25 mm offset and the lekkie bling ring has about 19mm offset. 42 tooth minimum is what you need. I have two bbshd builds and am speaking from experience.
Thanks for leaving the comment here. In that installation, the original BBSDH had the perfect offset (gap of about 4mm from the chainstay)
I ordered a 40T lekkie chainring package for my trek marlin 4 to solve the chainline issue. do you think it fits or should I order a luna eclipse 42T instead? thx in advance
I agree , BBSHD chain rings aren't well designed and the conversion kit 46 tooth chain ring is super heavy. Other manufacturers are cashing in on their poor performance with chain rings.
I agree about that Marc. The new M625 motor has a better chainring in comparison to the BBSHD, however they’ve a small offset which makes difficult to engage 1st gear on the bike. That could lead to electrical and mechanical problems in the new motor
@@Cyberbikesau Just curious on the offset your talking about Felipe , how many mm away from the frame ? Are there offsets in the market that can fit ? I'm sure with your skills that you would advise the client to not purchase one and offer them a better alternative. Changing cogs in the back could be an extra expense.
@@marccardinal3137 Hi Marc, we haven't measured from the frame to the chainring, but between chainrings, it was 10mm offset to the outside (towards the right side crank arm). Replacing the original M625 Bafang chainring with the BBSHD chainring was the cheapest option for the customer, other chainrings with similar BBSHD offset would work fine but they are more expensive. I think that changing cogs on the rear would not change the overall chain line, so the best option was a chainring that is more concave and will bring the chain line closer to the bottom bracket and frame.
@@Cyberbikesau WOW that is a huge offset Felippe. Thanks for the information. Kind Regards my friend.
@@marccardinal3137 Thanks Marc for your support, ride safely, see you in the other videos!!
E got my hd kit last week make my build. Even when i saw that new model chainring a was excited, because the teeth are really nice i like them more than my bbs02b chainring 44t. But, but when i finish and look that chain..... fackkkkk 😂😂😂 too outside . I found on aliexpress new ring for 32£ with 24mm offset and i think to ordered otherwise must forget gear 1,2,3,4
I've had no issues with the standard disc. Now I go to use it on another bike and it drops the chain when it's on the largest rear cog on the cassette. It drops the chain from the chain ring
I should be installing an M625 tomorrow, assuming my bottom bracket tool shows up. It looks like the unit can be disassembled, and the cog can be spaced closer to the bike with some washers and longer bolts. I'll try that this afternoon. I can only move it 2.69mm (according to my feeler gauges) toward the center of the bike though, so probably not enough. It seems I've got yet another project that can't be completed without a trip to the hardware store ...
Washers and spacers will make the chainring further away from the bottom bracket which is a terrible thing because the original M625 chainring is already too far away from the bottom bracket. You might have to buy a chainring that’s more concave and will bring the chain line closer to the bottom bracket not away from it. My advice is to build the bike then see what adjustments have to be done
@@frcr90 Lol, no. I am talking about disassembling the chainring itself (it is two parts, bolted together) then spacing the cog CLOSER to the bottom bracket. There isn't much room to work with though. I measured and it will only move it about 2.5 - 3 mm closer before it would start rubbing on the motor housing.
@@appye7994 oh right I understood now that could be an option but I don’t recommend spacing it out too much using washers and longer bolts
4 x 2.5mm spacers = 10mm. Also before ordering a parts measure if it fits on your bike. I have a huge fat bike with 3 motors and the rear hub motor is a bafang 750w. Plenty of space to set it.
How are you going to space 4x 2.5mm = 10mm on something that is already 10mm outwards? You will end up with 20mm! I think you haven't understood where the problem is.
How are you going to space 4x 2.5mm = 10mm on something that is already 10mm outwards? You will end up with 20mm! I think you haven't understood where the problem is.
@@Cyberbikesau Maybe I didnt do the the job yet. my understanding is that the 46t is 10mm closes to the frame, if you put 4x 2.5mm = 10mm it will move the chainring away from the frame? I already instaled I think 5 x 2.5mm on each side of the the motor. My bike is larger than other bikes. Like I said I'm not sure I didn't do it yet.
@@electricbikeretrovintage I dont wan to move the chainring away, I want to move the chainring inwards closer to the frame, that's the topic of the video.
@@Cyberbikesau I just rewatched your video and I understand now. Me I'm replacing a 42t that is on my bike for a 46t. When I ordered the motor I wanted a 46t but the seller told me he didn't have it in stock and sent me 42t instead. So you are doing the opposite relacement than me. I'm doing the opposite than you. My fault. You don't mention that both of your chainring are 46t. My 42t is the same model as your 46t on the left.
Quick question Felippe about the BBSHD stock 46 teeth chainring , I'm getting conflicting measurements on the offset is it 16mm or 19 mm. Please let me know , Thank you very much !
depends on the reference point. From inside the chainring (the part that touches the granny gear on the motor) to the furthest metal of the chainring it's 20.6mm. From the inside of the chairing (the part that touches the granny gear on the motor) to the chain line it's 18.2mm
Can the chainring be flipped around? So that its inset more?
Hi David, no it’s not possible, the chainring is at its maximum. Spacers could be added but will require new chainring bolts and won’t give you 10mm internal offset which is what we need for the perfect installation
So what would you recommend sir the brand of a precise chainring to be use.
Lekkie is the top aftermarket brand, you can find generic chainrings as well that fit well. Focus on the design of the teeth and quality of the material
this has always been an issue because not all bikes are the same and its not that big of a problem.... its an easy fix just get the right chainring for your setup.
Yes, this has been an issue for a long time, and yes, each bike is not the same. How would you fix this problem without using another chainring? Your intelligence is welcome here. Felipe, from Cyberbikes.
@@frcr90 again it all depends on the bike that you're setting up if the chainring that you got isn't going to fit right you're going to have to replace it with another one that's how you fix the issue. Can't be any more clear than that.
@@davidbaird3560 Exactly that's what we've done, and the BBSHD chainring was the cheapest replacement for the customer. It's a bit frustrating because when people buy the kit they could add spacers to find the perfect fit for their bikes. Now with the M625 chainring, people will have to buy another chainring to finish off their builds.
@@frcr90 its a DIY kit. like what do u want expect. quite often your going to have issues. it is what it is
@@davidbaird3560 I disagree, Bafang could have done a better job. 10mm offset difference is huge!
yo tengo una bicicleta y quiero hacerla eléctrica vivo en los ángeles California me puedes ayudar?
Yes of course please watch this video, it will help a lot ua-cam.com/video/mtPm9tlJ0hA/v-deo.html
As you said, the chainring is detachable. Therefore, you could put spacers and longer bolts in to correct the alignment.
Yes that could be an option, but good luck finding longer chainring bolts and spacers, super hard to find and the alignment of the 5 individual spacers can be very tricky
No you can't, the 130 BCD fasteners will contact the motor cover long before you reach a good chain line. There is no standardized chainring that will fit, 144 BCD is pretty close but for perfect alignment you need the Luna Eclipse or the (super expensive) Lekkie bling ring, or you can get reasonably close with the original style Bafang steel chunkosaurus 46T.
Which chain ring upgrade do you RECOMMEND for BBSHD 1000 KIT? PLEASE!?
it depends on your application and bike frame
@Cyberbikes the bbshd 1000w mid drive motor was arrived yesterday and just installed the motor and find out the 46t chainring aren't aligned to the 8speed cassette on which in my ocular checking this won't go up to the biggest ring of the cassette, my concern, is this does not affect or it won't destroy both the motor and the cassette if it is not aligned? Thanks sir for the advise that you may give, more power to your channel.
have a look in our channel, we have other videos talking about the installation
Hi sir. Just subscribed. Love the channel. I have a 2022 giant talon 1 with 1/10 gearing. The BBSHD actually hits the chain stay before completely bottoming out on the bottom bracket. Would you notch out the chain stay and have it welded/reinforced or use spacers at the bottom bracket because if I just let it rest against the chainstay and righted the main nut, it almost tweaks the whole motor off center! Have you ever done this installation?
Usa spacers to leave the motor shoulder away from the chainstay, you MUST leave a gap between the chainstay and the motor shoulder 2-3mm is enough. The motor should only be held by the bottom bracket wall/cylindrical spacers, you might need a motor that has a longer bottom bracket length, for example your bike is 73mm BB and you might need a 100mm motor to make it properly centralised to the frame. DO NOT EVER cut the frame and weld it in another way, proper geometry and heat treatment are a must when dealing with aluminium.
@@Cyberbikesau thank you for this. It is helpful.
@@themrfabio2459 watch this video ua-cam.com/video/mtPm9tlJ0hA/v-deo.html
Couldn't it be adjusted with washers or spacers?
Nope, using washers and spacer you would increase the offset and that’s not what we want. To fix this one has to machine the chainring, remove material, so the chainring can get 10mm closer to the bottom bracket
@@frcr90 ah, I see that now looking at mine. Can't space any of the 12 screws
@@DavyOneness I dont understand
@@frcr90 sorry, typo. The twelve screws being the six that attaches the mounting plate to motor and the six that attach the gear to the mounting plate
I just ordered the lekkie set up with new cover and 40t gear, but really wanted 36T, but will have to settle for 40t if I want proper chain line
I have a same Issues what can I do to fit 42t to bbbshd
space the chainring outwards away from the frame
I fixed my chain line issue by getting a bigger cassette lol
have no idea how it's possible
Hi how long does the m625 battery last?
Please watch our video on how to calculate the range of your ebike ua-cam.com/video/IETUcrkjKZo/v-deo.html
In the description, you download the battery range calculator from our website
Изогнуть задние перья рамы и будет хорошо. Я так сделал.
"Bend the rear stays of the frame and it will be fine. I did."
Glop you can't bend the rear stays of the frame, you made your frame more fragile and susceptible to failure. What you did is a very amateur fixing, we can't do that at the shop on a customer's bike.
Let me Tel u something guys bafang BBSHD is got 5 gears yes yesss sow that means u can only use BBSHD on single ring when no gears other u always going to hawe problems BBSHD 48V 750W this is wery powerful motor....to powerfull for shifting gears...only single ring can work whit bafang BBSHD
single gear would work, but you will have to choose, speed or torque or something in between. What you're suggesting is to build a car with only 1 gear, so when you're in the city you smoke everyone but when you're on the road your car cant go above 40km/h ahhaha or opposite, climbing a hill in the city the car would barely move forwards but on the motorway it would clock 150 km/h