The Ritchey WCS Zero seatpost is made of high quality, 3D forged 2014 aluminium and uses the proven design of the 2017 WCS Trail Zero seatpost. MTB seat posts are sometimes subjected to very hard shocks during use and saddles can slip in their position. Ritchey is aware of this and revised the saddle clamp according to the model of the kite telescopic seat post. The clamp guarantees lightning-fast adjustment of the saddle and is compatible with any two-stretch saddle. No matter how rough the trail is, the saddle stays where it should be.