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Posted

Need some help .

 

Currently im running 19-39 On a 421 cub 1/8 mile

With 180 lbs jokey

Bike is slow but runs good thru all the gears

 

If a put a 36 or 34 in back it will help or will make it slower ?

 

 

Sent from my iPhone using Tapatalk

Posted

That would give you more top speed, I don't think you're going to fit that small of a sprocket on the back though. What kind of hub are you running? If it's a stock hub I think the smallest you can go is 38 or 39 tooth.

Posted

Change them.

But slow is a vague word. Acceleration slow? Top speed slow?

Clutch set up? Tire pressure? Bike set up?

There's a few guys here that take drag racing serious. Maybe you can get some info from them.

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