JackElliott
1 mW
- Joined
- Jun 13, 2016
- Messages
- 14
This is my first electric bike build. I am using a '90s Nishiki mountain bike frame with short horizontal dropouts, a Bafang BBS02 mid drive motor with a Lekkie Bling Ring, and a Shimano Nexus 3-speed hub on the rear, with stock 19T sprocket, flipped over so that the driveline is good.
Under power, the chain pops off the sprocket.
The chain has been cut to the shortest length it can be, but even with the axle of the hub as deep in the dropout as it will go, there is some slop in the chain. Pretty saggy. Cutting out another link in the chain will shorten it by 1'', which is too short to let the rear wheel axle seat into the dropout. There is room in the dropout to lengthen it, and that might be my next step.
But before I modify the dropout, I could use some wisdom.
Under power, the chain pops off the sprocket.
The chain has been cut to the shortest length it can be, but even with the axle of the hub as deep in the dropout as it will go, there is some slop in the chain. Pretty saggy. Cutting out another link in the chain will shorten it by 1'', which is too short to let the rear wheel axle seat into the dropout. There is room in the dropout to lengthen it, and that might be my next step.
But before I modify the dropout, I could use some wisdom.