KONA Seat Clamp QR

This clamp has a diameter of 30.7 mm. You must measure your seat tube's outer diameter or check your current clamp's specifications to ensure a precise fit, as seat tube sizes vary significantly between bike models.

We generally recommend using a fixed bolt clamp for carbon frames to ensure even torque distribution. Quick-release clamps can sometimes create uneven pressure points that may damage carbon seatposts or frames if overtightened.

Yes, when properly adjusted, the lever provides a firm, reliable hold. It is designed to maintain consistent tension on the seatpost throughout your ride without slipping.

While you can technically use it with a dropper post, it is largely unnecessary since the dropper post itself handles height adjustments. A fixed bolt clamp is often preferred for dropper posts to prevent theft and maintain a cleaner look.

You adjust the tension by rotating the nut on the opposite side of the lever. Open the lever, turn the nut clockwise to increase tension or counter-clockwise to decrease it, then close the lever to test the fit.