Ritchey WCS Seat Mast 1-Bolt Rail Clamp Set, 8x8.5mm Bags & Packs Manufacturer Part Number: SP375SLZ

Manufacturer Part Number: SP375SLZ

Pops in and stays secure with the plastic nub

- Chrome plated steel binder for frames with integrated seat collar

- Monocoque unidirectional carbon shaft

Manufacturer Part Number: WH1003

Ritchey WCS Seat Mast 1-Bolt Rail Clamp Set, 8x8.5mm Bags & Packs Manufacturer Part Number: SP375SLZOptional 1 Bolt saddle rail clamps to replace stock clamps on Superlogic WCS Carbon or WCS Alloy 1 Bolt seatposts with 7x9. 6mm (Fizik carbon rail) or 8x8. 5mm (most other carbon rail) clamps. Stock clamps fit standard 7x7mm rails Stamped code: DC for carbon 9. 6, VF for carbon 8. 5, F for alloy 9. 6, S for alloy 8. 5 Silver alloy clamps fit carbon seatposts, black alloy clamps fit alloy seatposts Note: alloy clamps work on the Wilier Cento series