Race Face SIXC Seatpost

XC light, DH tough.

It’s carbon, it’s Canadian, it weighs less than 200 grams, and it’s worthy of downhill that most riders would have to walk (or just tumble) down. The RaceFace SIXC Seatpost is all of these things, thanks to advanced design and the unbelievably high standards that RaceFace products are forced to live up to.

The SIXC uses a special “leading edge” composite carbon fiber layup to achieve incredible impact resistance and a ridiculously high fatigue threshold. Not only is it tough and lightweight, it’s also ingenious with a clamp system that allows tilt adjustments and fore/aft adjustments to be performed separately. The clamp is only compatible with I-Beam saddles, not saddles with traditional rails.

  • XC weight
  • DH durability
  • Leading edge composite carbon fiber layup
  • Independent tilt and fore/aft adjustments
  • I-Beam clamp
  • Reviews
  • Q & A