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Athena Hyper Racing cylinder for vertical minarelli / 1989-2001 yamaha zuma 70cc
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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 |
| Compression Ratio | 13.8:1 |
| Displacement (cc) | 70 |