Speedline Parts | Alloy Seatpost Clamp
$ 19.95 - $ 24.95
After releasing the SX250 and the SX450 Frames, we learned that not everyone wanted the Quick Releases clamps. After hearing your feedback, we started producing a quality CNC machined aluminum seat post clamp.
It is simple, lightweight, and of course, gets the job done.
Available in Black or Polished.
Now available in 34.9 for the larger Aluminum and Carbon Seat mast Frames
Only 20.5 Grams
It is simple, lightweight, and of course, gets the job done.
Available in Black or Polished.
Now available in 34.9 for the larger Aluminum and Carbon Seat mast Frames
Only 20.5 Grams
Race calendar
Never miss a USABMX national
Add the 2026 USABMX national race schedule to your calendar with one click. Built by Supercross BMX so racers, parents, and fans can keep every national weekend in one place.
Dates are based on the official USABMX national schedule and may be updated if changes are announced. This calendar is a fan/racer convenience tool from Supercross BMX and is not an official USABMX calendar.