Box One BMX Seat/Post Combo-Carbon Post park-tool The Pormax EX-1 External bottom

The Pormax EX-1 External bottom bracket works great on any 2-pc style crank with a 24mm spindle

Supercross

Stem locks are preferred over star nuts that typically come with headsets

9 Pawls Engagement System

Weight - 25

Box One BMX Seat/Post Combo-Carbon Post park-tool The Pormax EX-1 External bottomThe 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