This video was the best! I changed my worn clutch cog and paw after watching this. If this video didn't exist I would not have been able to match the symptoms of my 7 year old bafang or know what part to buy or how to get the unit apart. Thank you Pär
Thanks, this is really helpful for others who have the same problem. My clutch seems to have worn out as it keeps slipping. It's been my daily commuter for 4 years, not bad.
Hi man. Thanks for video it helped me change freewheel. However 200 more miles since changing (4000+ total on this unit), I started to hear a sporadic cracking noise which combines with a gear not engaging. Then change gear and back to normal and so on. I think it could be the bearing inside the nylon gear altho is not obvious.
Thanks really helpful video. And yes it can be done without removing the motor. Good tip on how tight those screws are in the main gear assembly. Didn't use an impact driver but I did use a hammer and a perfectly fitting screw. Got to apply a lot of pressure and go carefully but an impact driver would be safer. Thought my issue was the freewheel which it probably is but I see that the gear assembly is also stuffed.
Excellent video, thank you. I have the 250W Bafang motor, and when I pedal without the motor on, or a flat battery, the pedals turn the motor round, making it very very difficult to ride, Any ideas please? thank you...Pete
Thank you so much Par. I took some bad advice from other videos and ran into problems. I changed the pedal assist on a Bafang BBS02 from 3 to 9, and I changed the LSPD setting from the original setting that I think is 10 to the maximum setting of 32. Everything was wonderful until it wasn't. I'd take off slow at about PDS 3 and work up to 9 at full speed and everything worked for a few weeks and suddenly the motor would just die. It was random and confusing. If I shut the power off and went into a store, it might work when I came back out.... Or maybe not. I found that if I played with the peddles by jogging them back and forth, it would catch every now and then and I could continue on. It was really embarrassing. I replaced the motor and left the settings at peddle assist 3 and set the LSPD, to 20. and I haven't had any problems so far ,but I have friends and family wanting me to build them e-bikes and I don't know if the problem is in the controller, or the amperage because I changed the settings....or both. Your comments would be truly appreciated. I don't want to go forward and build a bike for my friends just to let them down.
Tack för infon.verkar som du hållit på ett tag med fang.hsr en liten fråga om du vill svara, har en på 750 what motor på en trejuling. Hur stor skillnad är det på den och bafang 1000 watt motor + batteri.min har redan frihjul på motorn.kan unge köra 4mil på 3ans växel.,köpte allt på smmazon o ali express.well, tacksam för svar.P P Laholm.
Has anyone encountered with the BBS02, where once the snap ring is removed, the axle still doesn't disengage from the gear, so I still can't get into the clutch to determine what all needs replacement?
Thanks for this video-just what I needed! Can you possibly do it again with a bit more light on the subject so we can see better? Is the freewheel clutch the same for a BBS02B?
Good morning , I did not understand how the motor drives , because it is linked to a plastic gear that is silly , it does not hold , as it has an internal bearing .
How did you get the "axle nut" out. I held the opposite crank still. and it was impossible to looses, turn the nut counter clockwise. What is the secrete. Looks like you already had the nut loosened and it came out without any effort.
@@rapellymohansai205 I found a Bafang® axle remover tool that reaches down inside the axle and removes a series of nuts/locknuts,/spacers and bearings.. There are some videos that show step by step. The demonstrator was a woman that worked at Bafang. This was not an easy task.. I have since upgraded to the BBSHD for several reasons.. Getting to the freewheel is much simpler. and with 1000w, it utilizes the power better without overheating and burning up the motor. The 750w was good, And the 1000w is far better
I'm having considerable resistance when riding with motor off, it's really hard like brake is on or riding through treacle. Any idea what problem and solution is?
Hello and can change the flywheel pin!?? I have to change the 100mm one and put the 68mm. Can it be done,!?? On my mountain bike frame it's not good. Not because I have at the right measures because of the wagon that I have 148×12 mountain bikes. The chain works badly too crooked. Even centering a doc with a special belled crown does not go the chain work is too hard at v9licita 10-11 so it works well only up to 9. My bottom bracket frame is 90mm so I bought the 100mm BBSHD wat 1000 I'm looking for compliant frame but neither aliexpress nor year frame sellers way to help me. Would you know something for me,??? Please can you help me I'm trying to realize a dream of my life with so many sacrifices
One should be carful using the gears properly. But just because you have 5 gears on your care doesn't imply your weak motor can't handle it. It all depends on how you use it, - adapt force to the gear used. Similarly, a 52 chain ring is not (necessarily) a problem, assumed you use them as well. Secondly, it is not the motor that broke. It is the freewheel, transferring your leg-power (and not your e-power) to the wheel. Possibly I put to much force when pedalling. However, the main thing I guess, is to put grease in inside and around the freewheel, as some already mentioned in the comments.
@@parflodin3819 The freewheel you replaced here is likely designed for pedal torque typically produced with a cadence of at least 50-60 rpm; if you often pedal at lower rpm, especially while pedaling uphill, you likely are not using the best choice of derailleur gears. That large (52 tooth?) sprocket should be used with large rear sprockets to avoid excessive crank torque. Other possible causes of that damage include dirty or inadequate grease, and high motor speeds. If you pedal too slowly (low cadence) under heavy load, you risk damage to your knee joints in you legs. I've seen that happen to 'slow grinders' in my bike club. Try to choose 'gears' that allow pedaling at 70-100 rpm in *all* situations; you actually produce more power more efficiently that way!
Guess one could. Although these the bearings were not replaced, but I used the original greased bearings. However, it could be a good idea to apply some grease in the space between chainring gear and the freewheel (at least that's what I try out now, when replacing my second freewheel in 10 months...)
Some times when i use the throttle my bafan sounds like is not catching it but after few seconds it catch it,is that normal?and also the pedal feels like hard for a momen when using the throttle,could that be a clutch problem?thanks.
@@parflodin3819 so what speed do you sort of stay at on flat roads say, I just pushed it to hard. My controller is set at 18 amps which helps the controller to not blow!! But still do. I may have a tweek with the USB an laptop
@@chrissheila I started having issues with my BBS02 after almost 11K miles so I swapped it for an HD. 6000 miles in and the freewheel failed and had to get home using only the throttle for over 30 miles... it sucked. I was surprised how easy it was to change. 30-minute job once you have done it once. Now I have everything necessary with me to swap one in the middle of a ride should it ever become necessary again. Ride Safe. - photos.app.goo.gl/dhmEvtszvyBhMeCH8
I didn't the first time I replaced it (showed in the video). But one should! The second time I had to replace it I put grease there, and the freewheel has lasted well, and still works fine after several thousands km.
Vaidas Gelazauskas, at california-ebike.com. Quick responses, communicative. I had tried contacting the manufacturer (Bafang) and the seller, but no replies.
I live in Sweden : ) But the cali-ebike'ers was the only seller I could find. They were very collaborative and happy selling to Europe. Let me know if you find any spare-part seller in Europe.
Pär, thank for this video! Do you put this expensive grease Mobil 28 or Aeroshell 22? Bafang BBSHD is a very good motor, also in terms of maintenance. But very sad is that Bafang and Chinese in general do not like to put grease. This causes noise and damage, which shouldn't be. Not good for actually the good product.
Websites with spare parts I found: www.greencycle.fi/product/388/neulalaakeri-bafang-akselille fasterbikes.eu/en/68-spare-parts lunacycle.com/bbs02-parts/ www.greenbikekit.com/accessories/bafang-8fun-spare-parts.html
Thanks for this video-just what I needed! Can you possibly do it again with a bit more light on the subject so we can see better? Is the freewheel clutch the same for a BBS02B?
Good tutorial without any padding. Thanks for the upload.
This video was the best! I changed my worn clutch cog and paw after watching this. If this video didn't exist I would not have been able to match the symptoms of my 7 year old bafang or know what part to buy or how to get the unit apart. Thank you Pär
Thanks, this is really helpful for others who have the same problem. My clutch seems to have worn out as it keeps slipping. It's been my daily commuter for 4 years, not bad.
Nice video!! Amazing how much easier the BBSHD is!
Thanks! Didn't know that.
Hi man. Thanks for video it helped me change freewheel. However 200 more miles since changing (4000+ total on this unit), I started to hear a sporadic cracking noise which combines with a gear not engaging. Then change gear and back to normal and so on. I think it could be the bearing inside the nylon gear altho is not obvious.
Thanks really helpful video. And yes it can be done without removing the motor. Good tip on how tight those screws are in the main gear assembly. Didn't use an impact driver but I did use a hammer and a perfectly fitting screw. Got to apply a lot of pressure and go carefully but an impact driver would be safer. Thought my issue was the freewheel which it probably is but I see that the gear assembly is also stuffed.
If you would (of course you should) have put some high pressure grease in the freewheel it would hold way longer instead of being completely dry.
Shit.. this isnt exactly a walk in the park. Thanks for the helpful tutorial
Excellent video, thank you. I have the 250W Bafang motor, and when I pedal without the motor on, or a flat battery, the pedals turn the motor round, making it very very difficult to ride, Any ideas please? thank you...Pete
Thank you so much Par. I took some bad advice from other videos and ran into problems. I changed the pedal assist on a Bafang BBS02 from 3 to 9, and I changed the LSPD setting from the original setting that I think is 10 to the maximum setting of 32. Everything was wonderful until it wasn't. I'd take off slow at about PDS 3 and work up to 9 at full speed and everything worked for a few weeks and suddenly the motor would just die. It was random and confusing. If I shut the power off and went into a store, it might work when I came back out.... Or maybe not. I found that if I played with the peddles by jogging them back and forth, it would catch every now and then and I could continue on. It was really embarrassing.
I replaced the motor and left the settings at peddle assist 3 and set the LSPD, to 20. and I haven't had any problems so far ,but I have friends and family wanting me to build them e-bikes and I don't know if the problem is in the controller, or the amperage because I changed the settings....or both. Your comments would be truly appreciated. I don't want to go forward and build a bike for my friends just to let them down.
what is "LSPD" setting??
This is not me.
Tack för infon.verkar som du hållit på ett tag med fang.hsr en liten fråga om du vill svara, har en på 750 what motor på en trejuling. Hur stor skillnad är det på den och bafang 1000 watt motor + batteri.min har redan frihjul på motorn.kan unge köra 4mil på 3ans växel.,köpte allt på smmazon o ali express.well, tacksam för svar.P P Laholm.
Has anyone encountered with the BBS02, where once the snap ring is removed, the axle still doesn't disengage from the gear, so I still can't get into the clutch to determine what all needs replacement?
did you find a solution?
Thanks for this video-just what I needed! Can you possibly do it again with a bit more light on the subject so we can see better? Is the freewheel clutch the same for a BBS02B?
Good morning , I did not understand how the motor drives , because it is linked to a plastic gear that is silly , it does not hold , as it has an internal bearing .
How did you get the "axle nut" out. I held the opposite crank still. and it was impossible to looses, turn the nut counter clockwise. What is the secrete. Looks like you already had the nut loosened and it came out without any effort.
Yes exactly how can we remove it I have tried hard but unsuccessful
@@rapellymohansai205 I found a Bafang® axle remover tool that reaches down inside the axle and removes a series of nuts/locknuts,/spacers and bearings.. There are some videos that show step by step. The demonstrator was a woman that worked at Bafang. This was not an easy task..
I have since upgraded to the BBSHD for several reasons.. Getting to the freewheel is much simpler. and with 1000w, it utilizes the power better without overheating and burning up the motor.
The 750w was good, And the 1000w is far better
I could not get them off. Broke several tools trying. I need that special tool.
I'm having considerable resistance when riding with motor off, it's really hard like brake is on or riding through treacle. Any idea what problem and solution is?
Thanks Pär....Very good video!!!!
Shouldn’t you have put Molly grease in there?
Yes, that's a very good idea. I did so the second time i replaced the freewheel... and that has lasted well so far.
is there a particular size to the snap ring pliers you used?
Hello and can change the flywheel pin!?? I have to change the 100mm one and put the 68mm. Can it be done,!?? On my mountain bike frame it's not good. Not because I have at the right measures because of the wagon that I have 148×12 mountain bikes. The chain works badly too crooked. Even centering a doc with a special belled crown does not go the chain work is too hard at v9licita 10-11 so it works well only up to 9. My bottom bracket frame is 90mm so I bought the 100mm BBSHD wat 1000 I'm looking for compliant frame but neither aliexpress nor year frame sellers way to help me. Would you know something for me,??? Please can you help me I'm trying to realize a dream of my life with so many sacrifices
Man, he is killing this motor with 52 chain ring. No wonder he needs replacement parts.
One should be carful using the gears properly. But just because you have 5 gears on your care doesn't imply your weak motor can't handle it. It all depends on how you use it, - adapt force to the gear used. Similarly, a 52 chain ring is not (necessarily) a problem, assumed you use them as well.
Secondly, it is not the motor that broke. It is the freewheel, transferring your leg-power (and not your e-power) to the wheel. Possibly I put to much force when pedalling. However, the main thing I guess, is to put grease in inside and around the freewheel, as some already mentioned in the comments.
@@parflodin3819 The freewheel you replaced here is likely designed for pedal torque typically produced with a cadence of at least 50-60 rpm; if you often pedal at lower rpm, especially while pedaling uphill, you likely are not using the best choice of derailleur gears. That large (52 tooth?) sprocket should be used with large rear sprockets to avoid excessive crank torque.
Other possible causes of that damage include dirty or inadequate grease, and high motor speeds.
If you pedal too slowly (low cadence) under heavy load, you risk damage to your knee joints in you legs. I've seen that happen to 'slow grinders' in my bike club. Try to choose 'gears' that allow pedaling at 70-100 rpm in *all* situations; you actually produce more power more efficiently that way!
Hello Pär great video 🙏 I have the same problem isn’t it enough to change only the freewheel (clutch) to fix it? Thank you for your help
Depends whether the chain ring is torn out or not. In my case it was, but if not no need to replace it.
Hej Pär!
Jag har en fråga, är mobil mobilith shc 100 bra även för primär växel (nylon gear)? Vad körde du för fett till "clutch"?
why you didnt add any grease inside the bearings?
Guess one could. Although these the bearings were not replaced, but I used the original greased bearings.
However, it could be a good idea to apply some grease in the space between chainring gear and the freewheel (at least that's what I try out now, when replacing my second freewheel in 10 months...)
The Chinese act like grease is made of gold. Always need to add to the one little squirt the manufacturer puts on bearings, if they put any on at all.
Some times when i use the throttle my bafan sounds like is not catching it but after few seconds it catch it,is that normal?and also the pedal feels like hard for a momen when using the throttle,could that be a clutch problem?thanks.
Excellent video. Thank you
Can I ask how many miles you have done before needing clutch replacement?
Don't recall. But I've biked 2000km + since last replacment.
@@parflodin3819 have you got a gear sensor, just thought that would help. Looking that you didn't need the so called tools
@@parflodin3819 so what speed do you sort of stay at on flat roads say, I just pushed it to hard. My controller is set at 18 amps which helps the controller to not blow!! But still do. I may have a tweek with the USB an laptop
is this a fix for a creaking sound when pedaling?
When my bike creeks out like that, my motor has come lose and is truning on the crank.
Can this be done without removing the motor?
Yes. Don't ya hate when someone won't answer a simple question in a timely manner? Stay safe.
@@brianbassett4379 about 10months ago I worked this one out for myself. Did not have to remove the motor. BBS02.
@@chrissheila I started having issues with my BBS02 after almost 11K miles so I swapped it for an HD. 6000 miles in and the freewheel failed and had to get home using only the throttle for over 30 miles... it sucked. I was surprised how easy it was to change. 30-minute job once you have done it once. Now I have everything necessary with me to swap one in the middle of a ride should it ever become necessary again. Ride Safe. -
photos.app.goo.gl/dhmEvtszvyBhMeCH8
Do you grease the clutch/freewheel or run it dry?
I didn't the first time I replaced it (showed in the video). But one should! The second time I had to replace it I put grease there, and the freewheel has lasted well, and still works fine after several thousands km.
Hi, where did you buy the spare parts?
Vaidas Gelazauskas, at california-ebike.com. Quick responses, communicative. I had tried contacting the manufacturer (Bafang) and the seller, but no replies.
Pär Flodin thanks! It's good to have a responsive support in your country :) need to find someone like them in Europe :)
I live in Sweden : ) But the cali-ebike'ers was the only seller I could find. They were very collaborative and happy selling to Europe. Let me know if you find any spare-part seller in Europe.
at createyourownebike.com
Pär, thank for this video!
Do you put this expensive grease Mobil 28 or Aeroshell 22?
Bafang BBSHD is a very good motor, also in terms of maintenance.
But very sad is that Bafang and Chinese in general do not like to put grease. This causes noise and damage, which shouldn't be. Not good for actually the good product.
Hallå mister man. Du råkar inte bo i Gbg eller?
Nope, men gjorde för typ 10 år sedan. Göttebosk accent?
@@parflodin3819 nä jag tänkte att jag kunde få bjudit på en öl och frågat vad du tror är fel med min under tiden.
Are these mid drives problematic? There looks to be a lot of vids on repairs for them
You could replace the clutch without taking the motor out
You mean off the bike?
When you realised it needed changing was your pedals skipping as you was riding
Yes.
Websites with spare parts I found:
www.greencycle.fi/product/388/neulalaakeri-bafang-akselille
fasterbikes.eu/en/68-spare-parts
lunacycle.com/bbs02-parts/
www.greenbikekit.com/accessories/bafang-8fun-spare-parts.html
The clutch
That's called a sprag. Goes one direction then go in the other direction it's called a sprag.
I need a repairman to fix Bafang. Can anyone see my comment and help me be the repairer
No body 🤔🫥home
Thanks for this video-just what I needed! Can you possibly do it again with a bit more light on the subject so we can see better? Is the freewheel clutch the same for a BBS02B?