Description
The Oversized Pulley Wheel System (OSPW System) offers increased drivetrain efficiency with two 17-tooth alloy pulley wheels and extremely low friction pulley bearings.
- Grade 3 Silicon Nitride balls
- Hardened races
- Reinforced polyamide cage and non-contact seals
- Hand built in Denmark
- Carbon fiber cage
- Precision machined aluminum pulleys
- 28 tooth max compatability
- Compatible with Ultegra (6700/6770/6800/6870) and Dura Ace (7900/7970/9000/9070), 10s and 11s, electric and mechanical groupsets
| Defined Color | Black |
| Drivetrain Speeds | 11 |
| Drivetrain Speeds | 10 |
| Fits Brand | Shimano |
| Fits Model | Ultegra 6700/6770/6800/6870 |
| Fits Model | Dura-Ace 7900/7970/9000/9070 |
| Largest Cog | 28 |
| keyword search | OSPWS |
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