- High-speed bearings are manufactured to ABEC 3 precision levels
- Triple-lip rubber seals keep the grease in and the water and dirt out
- Chevron SRI 2 grease contains rust and oxidation inhibitors (-20°-350°F)
- Double-lip type TC seals with stainless steel garter springs
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1973-1974 | Yamaha | TX650 Twin | |
| 1973 | Yamaha | TX750 Street Series | |
| 1974 | Yamaha | TX750 Twin | |
| 1977-1981 | Yamaha | XS650 | |
| 1982 | Yamaha | XS650S Heritage | |
| 1978-1981 | Yamaha | XS650S Special | |
| 1983 | Yamaha | XS650S Special | |
| 1979 | Yamaha | XS650S2 Special II | |