Lekkie Spacer for BBSHD
This spacer, the Lekkie Spacer BBSHD is for the Bafang BBSHD 1000 watt electric bike motor kit only only. This spacer will not fit the Bafang BBS02 750 watt electric bike motor kit.
The purpose of this spacer is to move the chainring out from the body of the bike in order to gain a better chain line. Chain line is one of the most difficult challenges when installing a Bafang BBSHD 1000 watt motor or the Bafang BBS02 750 watt motor.
The word “chainline” refers to how straight the chain runs between the front and rear sprockets. Ideally, both sprockets should be in the same plane, so that there is no sideward motion or stress to the chain. This constitutes “perfect chainline.”In the case of derailleur geared bicycles, the chainline is not perfect in most gears. This does not present a problem with human powered bikes. However, when a powerful Bafang motor is introduced to the drive train of a bike the chainline must be perfect. Any any error in chainline will be greatly amplified by the motor and can cause the chain to come off and wear out sooner than it should.
The Bafang BBSHD Chainring Spacer measures 1.27mm thick
There are not a lot of options in solving the chain line problem without using these spacers. Lekkie makes this same product for the Bafang BBS02 motor and it can be found with this link.
Lekkie Spacer for the BBS02