Athena Hyper Racing cylinder for vertical minarelli / 1989-2001 yamaha zuma 70cc
New athena racing cylinder claims to bring new technology to the vertical minarelli engine. We recommend pairing this with a racing exhaust, crankshaft, and larger carburetor!
This cylinder is strongly recommended to be run on a reinforced crankshaft!
|Bore Diameter (mm)||47.6|