- Machined from billet 2014 T6 aluminium
- Bolt or QR compatible universal collars
- Available in six colors
- Weight from 20g
- Universal collar can be easily swapped from bolt to QR
- Size 28.6, 30, 31.8, 34.9, 36.4 and 38.5mm diameter
** How to Choose Correct Size ** measure the OUTER diameter of the hole on your frame where the seatpost goes into. The clamp fits OVER this part of the frame. This outer diameter on your frame is the clamp size you need. If the wrong size is ordered we will exchange but not accept returns. There is a shipping fee for exchanges.