Large pulley set for SRAM 12s Road drivetrain
The upper pulley is taller and square for aggressive chain movement. The pulleys are made of dura-aluminum and PVD (Physical Vapor Deposition) coated for long-lasting low friction and clean aesthetics. A purpose-specified tooth profile ensures crisp shifting and super smooth running.
Technology
Conti Wave
Conti-Wave machining reduces chain noise by minimizing the contact surface against the chain. The chain enters the rear derailleur at various angles. The Conti-Wave tooth profile, designed for the lower pulley, ensures smooth pulley-and-chain engagement regardless of the gear position. The continuous chamfered form on the teeth's edge reduces the contact area between the teeth and chain inner plates by 82.5%, further increasing efficiency while perfectly guiding the chain.
TBT Bearing
TBT bearings are made with ceramic balls and extremely hard races for very low rolling resistance and long-lasting performance.
Specifications
- Bearings: TBT
- Pulley Wheel: Upper 12T, Lower 14T
- Derailleur Brands: SRAM 12 Speed
- RD Compatibility: Red eTap AXS, Force eTap AXS, Rival eTap AXS
- Weight: 21 g / set
- Pulley Material: Aluminium
Please Note
- Compatibility: This product is compatible with SRAM RED eTap AXS and Force eTap AXS rear derailleurs, and SRAM’s Flattop chains ONLY. This product is NOT compatible with other derailleurs and non-Flattop chains.
- Note: Slight derailleur adjustment may be needed to achieve optimal performance. Check before your first ride!
- Important: Make sure your chain length is correct! Proper chain length ensures optimal drivetrain performance and stability. Always follow chain/drivetrain manufacturers’ guidance for chain sizing.












