The hope seatpost clamp 318 the seat clamp is machined from billet aluminum to match the rest of the hope range also to ensure years of trouble free use the qr lever pivots on a brass seat the collar on the seat clamp is now a universal style meaning either bolted or qr can be achieved on the same collar the qr does not come with a bolt and vice versa hope seatpost clamp 318 features cnc machined aluminium seat clamp secure steel bolt laser etched hope logo sizes