Check the listing for details. Snafu Race Quick Release Seatpost Clamp 31.8mm - Black. Color: Black, Condition: New. Listed at 24.99 USD. Snafu Race Quick Release Seatpost Clamp 31.8mm - Black The Snafu Race QR Seat Clamp - Jet Fuel is designed to fit most alloy full size BMX frames with a 31.8mm OD seat tube. The quick release lever makes adjusting your seat height quick and effortless. Ideal for when cruising down to your local spot and would prefer to sit and relax on the way there or when going home again. Features: Material: 6061-T6 Aluminium Alloy Easy to adjust 31.8mm ID Forged and machined alloy construction Quick release tab, replaceable Allen bolt, and stainless steel thread insert At SkatesUSA our primary goal is to give our customers the best deals on skateboards, longboards, scooters and bikes at the lowest price. That is our commitment to you, our valued customer.