KCNC SXX1 Mountain Bicycle Bike Oversized Pulley Wheel Cage. KCNC Wheel Bearings reduce friction, which gives you a lower rolling resistance. For 12s Sram Eagle XX1/X01/GX/NX use. The system is compatible with Sram Eagle XX1/X01/GX/NX 12 speed rear derailleur.
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