After lending a bike to a mate at the nats, he has the bug. His budget it tight like most of us but has a 73 250 engine laying around. Not real clued up with CZ stuf but it seems to be a 4 speed bottom with motorcross barrel etc. Just wondering if anyone has a roller that is of no use to them to start his build and get him on the track so an elsinore can fill him in. Thanks in advance