The Pro Tharsis XC Carbon handlebar has been named after the highest mountain range on Mars, why we have absolutely no idea, but we thought we would share that fact with you. If you are serious about XC riding then the new Pro Tharsis XC is the seatpost for you. Constructed from monocoque uni-directional T700 and T800 carbon fibre the seatpost is stiff, strong and extremely lightweight. The seatpost is 400mm in length and is internal Di2 battery compatible. The seatpost is finished with a 1 bolt clamp system with wide adjustment so you can find the perfect saddle position every time.