Hope seat clamp qrhope has given this seatpost clamp an updated design as now the quick release clamp can also be used as a bolt up type'. '.strtoupper('w')eighing only 52g, this light and strong component is an instant upgrade for both road bikes and mountain bikes'. '.strtoupper('i')ts also made in different colours to help you to match it with your frame colouring or other components.reasons to buy updated design'. '.strtoupper('q')r clamp can also be used as a bolt up type'. '.strtoupper('l')ightweight.features material cnc machined 2014 aluminium clamp finish anodised diameter available in a range of sizes please note a bolt is not included, this must be sourced separately weight 52gbuy hope components from chain reaction cycles, the world's largest online bike store.