Anyone have the GReddy underdrive pulley kit for their FD's? Can you give me some measurements PCD, Diameter, Number of runs for belts (two i expect) etc. as i'm looking to see whether this will fit my FC.

 

Big problem with adapting an FD belt kit to an FC is the FD's water pump turns backwards, since it's driven by the back side of the belt. The FD's water pump is designed to run backwards - that would be a MAJOR engineering challenge to get that to work on an FC.

There are a few companies that offer larger ribbed belts for the FC - they're pricey, but it would be far easier than trying to re-engineer the water pump.

Dale