I have my previous Huasheng which had a single chain trans and I believe it was a tapered shaft. My new Huasheng came with a dual Chan trans and I think the engine is straight shaft. The old trans appears that it will mount onto the engine even though it's smaller then the new trans but is there an issue with compatibility for to the shaft of the engine. I would also it on and check but wanted some advise first. Don't want to rush any damage cause I need it to commute. Bike is running fine but quite a bit slower then my old setup even though every thing is the same aside from the trans. Thanks
