SBP jackshaft, Worthwhile?

[jacob stone]

Looking to uprade from 2 to a 4 stroke and was wonding if I should ditch the kit and go right for the jackshaft mounting kit buy sick bikes (only one found) and part what i need or do it normal. I got the need for it a lot of hills here.

Part 2 any new material on best engines and gearboxes for it all i find is older material.

 

[Butteredbiskit]

I saw a vid on YouTube with a guy riding a stingray equipped with a 3 speed hub and Jack shaft. It seemed to operate fairly smooth. From what I understand, that set-up will help lower your rpm at top end more so than top speed. Imho it would be the way to go. Btw, I think a four stroke is the way to go. It isn't as loud as a two stroke which may keep you out of trouble with the police...maybe

P.S. all the Chinese motors suck but what can you do?