The PRO Discover Seatpost is designed to smooth out the roughest gravel bike rides, with its light and robust carbon layupesigned to provide you with a better sports bicycle experience the PRO Discover Seatpost is a carbon, gravel bike, seatpost. Boasting a vibration absorbing, lightweight and robust UD carbon, with Dyneema, construction it is designed to smooth out the roughest rides. It also features Shimano Di2 battery integration, a 400-millimetre length and two diameter options; 27. 2- and 31. 6-millimetres, the thinnest of which tips the scales at 205-grams. Like all PRO seatposts the Vibe Alloy Seatpost features an innovative 1 bolt clamping system, which provides a wide range of saddle angle adjustments.