Ritchey WCS Carbon One-bolt. Head uses less aluminum than other designs, resulting in reduced weight.

• Head uses less aluminum than other designs, resulting in reduced weight
• Design allows adjustments to be made with one easily accessed horizontal bolt
• 1-piece shaft and cradle support
• SideBinder clamp uses a single 5mm bolt to secure the saddle
• Wide saddle clamp reduces stress on lightweight saddle rails
• Works with all saddles with available clamp kits (ST3280, ST3281)