owhite
100 W
- Joined
- Aug 3, 2020
- Messages
- 285
Hear me out, and please just treat this as an instructive, hypothetical discussion.
If you go on ebay and amazon and search for "125cc transmission" you can find plenty of hits for the replacement gears that go into the gear box of lil pit bikes. You can also find gears for go-carts that would give you three gears and a reverse.
There are also some great videos on how motorcycle gearboxes work.
link
link
...being examples. There are also examples where you could get a whole 125cc engine, and what interests me about that is you could either use that to copy the shaft positions for the engine, or if you were ambitious you could possibly mill out the transmission side of the engine block.
So my point is this -- why not put a gearbox on an emotorcycle? The advantages would basically be the same as a gas engine: lowering the rpm in order to achieve the same speed or torque. In the case of an ebike, instead of using less gas, it would extend the battery usage.
I did my best to search ES to find posts on this, but they were swamped out by discussion of putting mid-drive motors on derailleur bikes.
If you go on ebay and amazon and search for "125cc transmission" you can find plenty of hits for the replacement gears that go into the gear box of lil pit bikes. You can also find gears for go-carts that would give you three gears and a reverse.
There are also some great videos on how motorcycle gearboxes work.
link
link
...being examples. There are also examples where you could get a whole 125cc engine, and what interests me about that is you could either use that to copy the shaft positions for the engine, or if you were ambitious you could possibly mill out the transmission side of the engine block.
So my point is this -- why not put a gearbox on an emotorcycle? The advantages would basically be the same as a gas engine: lowering the rpm in order to achieve the same speed or torque. In the case of an ebike, instead of using less gas, it would extend the battery usage.
I did my best to search ES to find posts on this, but they were swamped out by discussion of putting mid-drive motors on derailleur bikes.