31.6 mm

KS Rage-i Dropper Seatpost Comes with the dropper in the length you purchase (125mm, 150mm, or 175mm) with the seat tube diameter of 31.6mm, the cable and housing to run the dropper, and the lever actuator. These have never been installed on a bike but do not have original box. Instead they are in a bag with the manual and all parts. The KS Rage-i dropper is a great budget friendly seatpost for all of your mountain biking needs. With a short insertion length to travel ratio it gives you the most rise without being crazy long letting you run the tallest travel stanchion possible. -updated cylindrical upper clamp nuts do not spin-more vertical head clamp bolt angle-reduced actuation force-alloy stanchion-weight optimized alloy mast-press fit bushing and duster wiper-short insertion length to travel ratio-designed for internal frame routing-air spring hydraulic cartirdge