The Turbine R is infinitely adjustable to any height thanks to its silky smooth, reliable mechanical actuation. Mounting a saddle and getting your saddle position dialed is easy as pie thanks to the user friendly zero offset seatpost clamp. 4 travel lengths (from 100mm to 175mm) are possible and this post uses standard shifter cable and housing. You know, just to keep things real. Specification:Lever ActuationMechanical,Head TypeZero Offset - 2 Bolt,Includes:Post only,Colour:Black,Weight:545g.