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Replacement headset bearings for Ritchey headsets
O-ring seal prevents water intrusion around the steerer tube
5 Bearing Grade ACB Sealed Steerer Tube 1-1/8 SHIS Lower ZS44/30 Headset Type ZS External threadless Material 7075-T6 Aluminum Headset Position Complete Primary Color Black Upper Cup 44mm
and debris
model SR Allroad Pro size S/M rails TiNox SL top microfiber color black LxW (mm) 251x143 weight 230g
Halo Spin Doctor Disc Rear Hub (M10x135) 48h MPFN-50018-40 Replacement headset bearings for RitcheyForged, CNC 6061 aluminum hub shell with four sealed cartridge bearings, HG splined freehub International Standard 6 bolt disc rotor mount Not compatible with HG 11sp road cassettes Model Spin Doctor Pro Front Rear Rear (HG 8 11sp) Axle Spacing (mm) 10x135 Nutted Hole 48 Spoke J Bend Brake 6 Bolt Color Black Weight 475g
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