SRAM

Rear Derailleur Pulley Kit, S100 NX SX

SRAM Rear Derailleur Pulley Kit, S100 NX SX is a direct replacement pulley set designed to restore crisp, quiet shifting when the original jockey wheels are worn, contaminated, or damaged. The kit includes both the upper (guide) and lower (tension) pulleys, plus bearing plates, making it a straightforward service solution for compatible SRAM S100, NX, and SX rear derailleurs.

• Complete upper + lower pulley set - Replaces both jockey wheels at once to bring back consistent chain control and shift accuracy
• Includes bearing plates - Provides the small hardware pieces needed for correct pulley support and smoother installation during service
• SRAM S100 / NX / SX compatibility - Purpose-built for these derailleur families for reliable fit and function
• Maintenance-focused upgrade - Helps reduce drivetrain noise and friction caused by worn pulley teeth, improving overall drivetrain feel