Originally Posted by sandiego
I have the exact one, they don't transfer the power to the wheel very well. To go 17mph you have to keep the engine wide open, i'd stick with the chain drive or if there's a better roller. I bought it for 175, i'll sell the engine for 65 if anyone wants it, I rode with it on twice and just stored it.
Sandiego, Is the drive roller removable? Maybe you can install a different drive roller into it?
BMP sells spare drive rollers, they have 1/2" inside diameter hole, and if that could fit into your unit, I think it would work great.
The DAX kit's roller inside diameter is 15mm, I think, but I don't know if he sells spares.