CNC machined and drilled lightweight steel cogs.10mm Wide foot spreads the loads over a greater surface area than a straight single cog and will significantly reduce the risk of the cog biting into your alloy freehub splines.5/64 Inch Teeth fits 1-9speed chains.16,17 and 18T sizes.Designed to work with Gusset 66C Campag SS convertor..
