For mountain bikers searching for increased control on technical descents the koryak dropper post range provides performance, reliability and durability across a range of dropper seatpost diameters and lengths of travelthe Pro koryak dropper post is an infinite-travel dropper seatpost. Boasting a robust design, featuring pro's redesigned seals to improve the lifespan of the dropper, it is ideal for trail and enduro mountain bikers. Available in 120, 150 and 170mm length and 30.9, 31.6, and 34.9mm diameters, it has an alloy construction as well as a mixed oil/gas cartridge. Its internal cable routing ensures a neat aesthetic. The koryak dropper post makes use of pro's 2-bolt head design which provides a neutral saddle position and up to 10° of saddle tilt, making it possible to raise or lower the nose of the saddle to perfect your riding position. Completing the dropper seatpost is a low resistance actuator, which functions on a 2:1 lever ratio and requires less pressure