Originally Posted by
mini696
I'll find a way to make it work, I have to, its the class our club is moving to.
You can get it to work if you have a PRS adapter or one of the new layshafts. I ran 4.0 all the time in 13.5 before boost speedo's were a big deal. I ran 64 pitch spurs though. 112/51 will put you at 4.02 FDR with 64 pitch spurs/pinions.