Impact '1 Bolt' Seatpost Clamp
Alloy seat clamp with steel thread insert for a strong clamp power.
Excellent aluminium double bolt seatpost clamp from Impact with a threaded insert that rotates when the clamp is tightened. This prevents cross threaded bolts and with it made out of steel it’s nice and strong for firmly gripping your seatpost.
Clamp inside diameter = Frame outside diameter.
28.6mm (Nimbus, Qu-Ax) 31.8mm (Impact, Kris Hom, Oracle)
Frequently Asked Questions and Answers
What size seatpost clamp do I need?
Bikes have always specified the clamps by the frame size and there are lots of sizes. luckily unicycles have considerably fewer. The seatpost clamp is alway related to the frame outer dimension, not the seatpost. Although there are some simple rules w...
Impact Unicycles Manufacturers Page
Impact Unicycles is the best manufacturer in the world for trials and flatland unicycles. Although the brand was started in 2009 by the famous French rider Yogi. It is now wholly owned by Unicycle.com. Designed by unicyclists, ridden by world champions...