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Speedline BMX Quick Release Lever for Supercross BMX SX450z Frames

The Speedline Quick release Seatpost clamp is designed specifically for the Chromoly Supercross 450z frame sets. It's a basic alloy quick-release lever with a stainless seat pin and alloy lock nut.

While it's designed to work specifically with the Supercross SX450z Frames, this clamp will work with most frames that feature quick-release frame bosses. Whether it's for a Road bike, Mountain bike, or BMX bike, this will work for you.