Hey guys is a rev box(CDI) what ever you wanna call it really worth it, i have the 2bros 88cc kit with whatever carb came with it. Also right now i put a 39 tooth sprocket on there and i out accelerate the stock guys buy in third they fly by me should i go back to stock... stock is 36teeth right? and get a rev box? anyways guys let me know whats up....

 

i think that they are worth it along with a head breather, that will let you rev out a little moreby releiving excess head pressure, and as far as gearing i like the setup I have it's 15 front and 37 rear. 37 is stock in the rear.

 

With a big bore your making more power so definatly gear UP instead of down. Run like 15/37 or 15/36 and get a CDI from www.hondatrailbikes.com or someone like that should help you out some.

 

Yup thats what you wanna do..