Bafang BBS02B mid drive kit left crank arm issue (Solved)

[@HB-yq8gy]

The Old Man is a crafty counselor!

[@wheelygood1754]

Thanks for this, great bit of info

[@losien1]

It would have helped tho if you put here the “new” shimano part number that is engraved on the inner side. Now we know how you fixed your but it not exactly clear what we should be looking for…

[@oldmansadventures4627]

I didn't provide any part no's because I simply went into my local bike shop and asked them for a used non drive side 170mm diamond tapered offset crank arm . I didn't care what brand or color.

[@bicubicubic]

Can i use shimano e5010 crank arm on bbs02

[@oldmansadventures4627]

I'm not familiar with that model crank arm however as long as the taper angle matches the other crank arm and it clears the frame I don't see why not

[@theartteacherdaniel5096]

Have you experienced that the crank arm gets loosed overtime?

[@wheelygood1754]

I've experienced this and unfortunately it was whilst using the expensive but stunning Lekkie crank arms. Whatever you do don't keep pedaling like I did, it wrecks the square taper hole very quickly. Just keep checking and tightening after you first fit them, the issue does settle down as they bed in. I'm back to using cheap arms now, can't afford another pair of Lekkies😥

[@oldmansadventures4627]

I have not, however it's only been rode about 65 miles so far, and I always tighten them to the point I'm scared I'm going to strip the threads then check them again in a day or so.

[@theartteacherdaniel5096]

@@oldmansadventures4627 thanks for your answer

[@theartteacherdaniel5096]

@@wheelygood1754 oh I was hoping yo get the lekkie in hope that crank arm won't get loose.. I'm lock I'm getting a new motor cause my left crank is ruined

[@oldmansadventures4627]

@@theartteacherdaniel5096 I'm not sure what would be involved because I haven't done it, but I would expect it to be fairly easy to someone with some mechanical ability to remove the crank shaft and have it repaired by a local machine shop rather than trash the motor. Like I said I've not done this but before I retired we used to have electric motor shafts repaired all the time at a fraction of the cost of replacement.

[@Hybrid600]

Here you go: www.empoweredcycles.com/products/offset-left-crank-arm-bafang-bbs02-bbshd#shopify-product-reviews