Bill00Formula

iTrader: (4)

On many of the websites it says to let them know if its for racing or high RPM use. I tried to order one and the vendor didn't really know what I was talking about. So I called ATI and they said just make sure it has 66 rubbers (not sure what that really meant). He also suggested that I use a stock size pulley because of the longer stroke. I called the vendor back and they didn't know what I was talking about. Does anyone know anything about this? Also, what about running a 10% underdrive pulley? Are most not doing that with a 4" crank? Thanks

Gray86hatch

iTrader: (83)

Find another vendor or order direct. You don't want a underdrive and you want the hard rubber.

The smaller it is the less abillity it has to dampen.

Tim