Yep Components has joined the crowded ranks of dropper seatposts with their new Uptimizer. The Swiss company is run by former Formula One driver Andrea Chiesa, who also happens to be an avid mountain biker. The aircraft-grade 7075-T6 aluminum Uptomizer is cable-actuated and comes in two versions—the externally-routed ST and the internally-routed HC, with travel lengths of 125mm and 155mm, and in 30.9mm and 31.6mm diameters. The hydraulic, air-sprung post features Angst & Pfister seals and dust rings, Motorex grease and oil, and IGUS iglidur bushings. The 500-gram post utilizes a zero-offset saddle two-bolt clamp, and a joystick-style remote lever.
Yep designed their seatpost to run with a lower air pressure (130 to 180 psi) compared to the industry norm of 250 psi, which helps reduce stress on the seals and increase longevity, according to the company. Using a specific internal design and precision build, they focused on hydrodynamic problems, valve shape and oil conducts to avoid vortices and cavitations, all of which provides silent and sensitive progressive action. The synergy of their entire design means it only requires a very light touch on the joystick remote to activate the system.