Just a heads up with a cobra gt the 34mm flywheel is to big. It just wants to meet the rear brake disc! Had a 34mm set up off my DM1 and couldn't use it. Iv been running the stock serpent stuff but its junk. Shoes wear out within 1/2 gallon! I need just a 32mm flywheel to put my shoes and springs on if anyone has a spare they want to part with!!!!