Wheel Upgrade Kits

Sierra Bicycle Supply Verified independent store

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CeramicSpeed cartridge bearing kits for wheels is an upgrade option that provides extremely low friction, improved power transfer, and a service life that far exceeds traditional s teel bearings. Includes 4 X 61803 + 1 X 61903 + 1 X 61804 bearings Fits NSW (NOT DISC) Before mid 2018 (1st gen) Show more