The CeramicSpeed Oversized Pulley Wheel System (OSPW) is the fastest and most efficient in the world, preferred by many of the world's leading cycling teams and professional triathletes. It features a 13-tooth upper pulley and a 19-tooth lower pulley for absolute optimization of the rear derailleur, resulting in power savings of 2.4 watts compared to standard Shimano systems.
Specifications
- Color: Standard black (untreated)
- Pulleys: 13-19
- Pulley material: Aluminum
- Cage material: Polyamide and carbon fiber composite
- Bearings: Standard
- Lubrication: CeramicSpeed Pulley Oil
- Compatibility:
- Shimano R9200 and R8100 drivetrains
- Shimano 12-speed cassettes with 11-30 or 11-34 teeth
- Adjustment: 4 spring tension settings
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