Introducing the all-new OneUp Dropper Seatpost V3!

With over 3 years in the making, the new V3 surpasses the award-winning V2 in every way. It’s now lighter, longer, smoother and more reliable; with the shortest stack and total length of any dropper post available.

Check out our product page here!


An ultra-lightweight, high-performance, long-travel dropper. Could the V3 be the best dropper post for your ride? Here’s everything you need to know about OneUp’s latest creation…


OneUp claims that the all-new V3 is the lightest infinitely adjustable dropper on the market.

Weighing in at around 60 grams lighter than the V2, the 90mm version clocks in at just 325g.

The biggest weight savings come from the new hydraulic cartridge, now fully sealed so it never needs to be inflated.



The OneUp Dropper Seatpost V3 surpasses its predecessor in every conceivable way, here’s a full list of all the improvements OneUp have made:

  • 60 – 70g lighter
  • 75% reduction in breakaway force & smoother actuation
  • Fully sealed cartridge that doesn’t need to be inflated
  • Compressed stack height is 3mm shorter
  • Total length is 10mm shorter
  • Increased bushing overlap
  • IGUS bushings
  • Low friction SKF Seal
  • New cartridge is 100% recyclable


When riders asked for improved seals, reduced play and smoother action, OneUp listened.

All of these aspects have been addressed with the V3, with the cartridge, bushing, seals & pins all getting a revamp.

Here’s a full breakdown, direct from OneUp:

Cartridge: For smoother action, the all-new cartridge requires 75% less lever force when the saddle is loaded and much less breakaway force to initiate. This means it’s even quicker & easier to drop your saddle while riding.
Bushings: OneUp upgraded all the bushings to use a low-friction, self-lubricating IGUS material and increased bushing overlap to further reduce friction. 180-240 drop posts have an additional bushing to further support the increased overlap.
Seals: OneUp have developed a completely new, high-performance collar with a custom SKF wiper seal to keep dirt out and grease in. The new seal and bushings keep the V3 running smoother for longer, with less maintenance.
Pins: To eliminate rotational play without increasing friction, OneUp has doubled the number of anti-rotation pins and added 2 oversized polymer pins.


The Specs

Now available in their widest range of travel options, there’s a V3 dropper for everyone.

Diameter30.9 / 31.6 / 34.9
Travel90mm / 120mm / 150mm / 180mm / 210mm / 240mm
Weight325g / 370g / 415g / 460g / 515g / 585g (for 30.9)
Total Length295mm / 350mm / 415mm / 480mm / 545mm / 610mm
Compressed Stack Height30mm (25mm for 34.9)

Could the new OneUp Dropper V3 be just the upgrade you need? Follow the links below for our product pages or browse our entire OneUp range!

Available now, online & in-store.

OneUp Dropper Seatpost V3£279.99
OneUp Dropper Seatpost V2.1£179.55 (10% off!)