Ritchey WCS Seatpost 1-Bolt Rail Clamp Set 8x8.5mm Backing Plate Material-Aluminum For aero disciplines hydraulic disc

For aero disciplines hydraulic disc brakes can reveal a whole new world of speed savings

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Surly MDS Dropouts chips

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Ritchey WCS Seatpost 1-Bolt Rail Clamp Set 8x8.5mm Backing Plate Material-Aluminum For aero disciplines hydraulic discRitchey WCS 1 Bolt Seatpost Saddle Rail Clamp Complete Set For Alloy Posts 8 x 8. 5mm Rails Black. Seatpost saddle rail clamp kits adapt existing seat posts with various saddle rails of different shapes and dimensions. For installing on Ritchey one bolt seatposts