Thinking about puttin a new front sprocket on to go along with my new 72cc bore. I know it will be a little harder to wheelie (more like stock) than it is now but who cares, i'll deal with it. I was looking at going up 2 in front. Anyone know how much I can expect this to add to my top end?

 

go three down in the rear...more than one up in the front, but not quite two up...worked good with my 88 kit

 

2 up will kill that thing. i like 1 down in the rear for 72s, or 1 up up in the front aint too bad. any more will pretty much kill it

 

dont gear keep all the torque and engine brake

 

yeh thats gonna be too much on a 72 imo ...

 

Try 1 up on the front to start.

 

I'm thinking of running 16-37 with my tb88cc race head??? any thoughts

 

Should be nice. I am 15/37 right now and it moves out. Can't keep the front end down in 1st and 2nd and it just flat out flys in 3rd. My chit rips.

I'm going 15/33 and if that still isn't enough top end i am going to go 16/33. I'm aiming for 60mph. If the TB88 with head and pipe won't pull it I'll stroke the sucker. :YEAH

 

Thats some testosterone righ thurrr lol :YEAH

 

So how many mph can i expect to gain from going just 1 tooth up in front? If its less than 5mph i'll probably just leave the gearing stock... i'd heard of some crazy gearing with the 88cc kits, i figured the 72 could handle 2teeth up in front but it doesn't sound like it.

 

id say 1 tooth is good for around 5 MPH. get one and try it out. takes a whole 5 minutes to swap it in or out.

 

I had a 15 front with my stocker motor and it was nice. I put it on to get more top end when running downhills. Gave me a lot more before the limiter.

It didn't help anywhere else though.