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X-SYNC™ 12s Ceramic Hybrid Bearing Pulleys

SRAM

High-quality rear derailleur's upper and lower pulleys with sealed ceramic bearings make the leap to reduced friction, increased stiffness, lighter weight, and added durability. 12 teeth upper, 14 teeth lower pulley.
- For SRAM 12s rear derailleur (XX1/X01/GX)

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