Description
Pulley wheels that reduce friction, last 3-5 time longer than stock high-end pulleys, and reduce overall drag within the drivetrain.
- Grade 3 Silicon Nitride balls
- Hand built in Denmark
- These pulleys are compatible with all Shimano 11-speed rear derailleurs that aren’t XT or XTR
- Precision machined aluminum pulleys
- Hardened races
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