Wolf Tooth Bearing - 42mm 36x45 Fits 1 1/8" Black Oxide MFPN=HSA-IB42SLLX-IC52X-S }Wolf Tooth GeoShift Performance Angle

}Wolf Tooth GeoShift Performance Angle Headset - 2 Deg Short EC44/ZS56 Black

Super smooth CeramicSpeed grade 3 Silicon Nitride balls are matched (within microns) with hardened steel raceways that feature an ultra-smooth polished groove

and review later via Garmin Connect app

SID XX/RL(B1)

Wolf Tooth Bearing - 42mm 36x45 Fits 1 1/8" Black Oxide MFPN=HSA-IB42SLLX-IC52X-S }Wolf Tooth GeoShift Performance AngleWolf Tooth Bearing 42mm 36x45 Fits 1 1 8" Black Oxide. Headset bearings for Wolf Tooth headsets. Replacement bearings TECH SPECS Color Black Cartridge Bearing Angle 36x45 Bearing Type Cartridge Bearing Type Black Oxide Steel Bearing O. D. (mm) 41