Box One Seat/Post Combo-Carbon Post Size:Large Ergonomically pre-shaped and fully vented

Ergonomically pre-shaped and fully vented knee generously contoured to accommodate all types of knee braces and guards while a massive air-intake system cools and protects

The Eclat Bottom Bracket Kit at J&R Bicycles is a high-quality no-fuss bottom bracket set made with lightweight alloy components for smooth pedaling

Standard 22

Front 28H Expert hub(XA60FAS): 6901 bearing X 2 PCS

WEIGHT [short]: 50 grams / 1

Box One Seat/Post Combo-Carbon Post Size:Large Ergonomically pre-shaped and fully ventedThe Box One Saddle is about the smallest and lightest seat seatpost combo out there. Its nylon seat is co molded to the carbon fiber seatpost to form a bond so strong its virtually a single piece. These seats are designed specifically for BMX racing. FEATURES Carbon Fiber Post Co molded Nylon Shell Impact Resistant Clear Coat Finish Minimum Insert Indicator SPECIFICATIONS Box One Saddle Specification Chart SIZE SADDLE MATERIAL SADDLE DIMENSIONS