All our OneUp Dropper Posts are the latest models with the V2.1 actuator. The OneUp Dropper post is now available in 90 mm, 120 mm, 150 mm, 180 mm, 210 mm and 240 mm lengths and all can be shimmed down in travel by 10 or 20 mm. Have a look at our sizing guide below to get the maximum amount of drop, or watch the video to see just how easily you can install drop reducing shims. (27.2 mm posts use a different cartridge and can't be shimmed down) OneUp have been obsessed with shaving every last millimetre from the latest OneUp post to give you the shortest stack height and shortest total length of any dropper post. No other post can get your saddle lower. Cable actuated with reliable sealed cartridge internals for easy home servicing and includes travel adjust shims allow you to custom tune your post to dial in your perfect length. Re-branded TranzX posts and overcomplicated, unreliable posts dominate the dropper post market. OneUp's dropper offers something better, a reliable, long-lasting post with class leading specs, innovative useful features AND real value. We also stock service items and spares to keep your post performing like new, check out the parts diagram below for anything you need. Basic seal regreasing as part of your normal bike servicing routine is easy, just follow the video below. Posts are supplied without a remote lever. You can choose a remote here.