Kogel Kogel Derailleur Pulley Full Ceramic Shimano OS Full Ceramic Black/Blue MPFN-BB MR 21531 LLB-BX 3 Wall Dbl Side NMSW

3 Wall Dbl Side NMSW Color White Hole Count 36 Valve SV Weight ERD 390 Extras Eyeletted

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Tools for maintaining RockShox suspension forks

Kogel Kogel Derailleur Pulley Full Ceramic Shimano OS Full Ceramic Black/Blue MPFN-BB MR 21531 LLB-BX 3 Wall Dbl Side NMSWPulley for the latest generation of Shimano derailleurs: Dura Ace R9100 Ultegra R8000 and 105 R7000 as well as the long cage of a Sram Wifli. Narrow wide tooth profile benefits include reduced articulation in the chain while retaining accurate shifting. May require use of a longer chain TECH SPECS Vendor Kogel Manufacture Number PUL 1214 9100 FC Model Name Kogel Derailleur Pulley Full Ceramic Category Derailleurs