just a few small things that make the process a lot easier.
- first and foremost, they (vendors) finally included the throttle linkage which was previous not included and you had to make your own or find one
- the bulky restrictive base air filter has been removed and replaced with a more appropriate bike filter
- the stock exhaust has been removed and i believe (don't quote me on this) but the modified stock exhaust has a different position now so that it no longer sits on top of the engine (rendering it impossible to mount)
but, i have hear that the transmission is not as strong as it should be. I would reinforce it with a solid strong steel bar bolted somehow as to not impede the transmission chain. also, the kit does not appear to come with a gas tank mount. ive seen people mount it on top of the top tube with wood but that seems really tacky. i would mount it on the rear rack with wood and paint the wood black (as i have done on my 49cc). if you are concerned about storage space there are front a variety of front tube panniers to accommodate.
also, the gearing on the transmission is really low but this might be okay because it is a stronger engine and can pull you up to speed.
dont buy it on my account but these are my thoughts on it.