Old 01-13-21, 03:23 PM
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Originally Posted by gsa103 View Post
I have a Bafang BBS02. Using a standard 68mm bottom-bracket is bad practice. Even with downrating the motor, I still shredded the Aluminum bottom-bracket shell. It works fine on steel framed bikes, not on Al or CF. The bike frame needs an integrated way to resist torque, you can't get that with a DIY. The fact that Bafang doesn't even sell a decent torque arm is ridiculous.

And with connectors, a DIY user has to add additional solder or crimp joints, because a DIY user doesn't have the tools required to crimp a proper automotive connector.
Disagree since I have a BBS02 on my wife's (68 mm BB) aluminum frame @ 52V and it functions perfectly. How can the motor trash the frame when it's immobilized by the down tube? Also Luna sells a brace for those that need it. Also, crimping is easy with electrical pliers and the appropriate double-sided connector; at least it has been for almost six years on my BBS02 system.
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