- High-performance, cast pistons closely match original equipment
- Engineered for the best possible heat transfer from combustion chamber to cylinder walls
- Rings are replacement for one piston
- All pistons are priced with ring(s), wrist pins and circlips
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1979-1980 | Yamaha | Excel V EC540 | |
| 1980-1983 | Yamaha | SR540 | |
| 1988-1991 | Yamaha | VK540 | |
| 1999-2005 | Yamaha | VK540 III | |
| 1985-1990 | Yamaha | XLV XL540 | |