Cane Creek G4 Thudbuster-LT Seatpost 30.9 x 420mm SS Clamp

90mm of travel for XC, Gravel or Comfort use- Patented 4-pivot parallel linkage with PTFE bushings- Pedal to saddle distance remains nearly constant through travel- 2-piece elastomer design. Tool-free inner elastomer change for various rider weights. Medium elastomer installed- Set Screw (SS) clamp design- Extension: minimum 146mm to 290mm (27.2) / 320mm (30.9/31.6) maximum- Rider weight limit of 250lb/115kg