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  • PRO Koryak Adjustable Seatpost
  • PRO Koryak Adjustable Seatpost Detail
  • PRO Koryak Adjustable Seatpost Detail
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PROKoryak Adjustable Seatpost
Sale $144.99 - $299.99

Item # PRS003H

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  • I-Spec II Remote,30.9x400mm/120mm Travel ($289.99)
  • I-Spec II Remote,31.6x400mm/120mm Travel ($144.99)
  • I-Spec II Remote,30.9x400mm/150mm Travel ($299.99)
  • I-Spec II Remote,31.6x400mm/150mm Travel ($299.99)
  • I-Spec II Remote,31.6x507mm/170mm Travel ($299.99)
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Item # PRS003H


You're tired of playing catch up after every elevation change as your dropper-riding compatriots speed ahead while you're left fumbling with a quick-release and pondering the correct saddle height for the next set of trails. As soon as the PRO Koryak Adjustable Seatpost you ordered after the most recent lung-searing interval session arrives, you'll be back in the pack with on-the-fly seatpost adjustability to adapt instantly to changes in the trail. Its aluminum construction and cable actuation blend perfectly on your frame with clean internal routing and a price tag that leaves some cash left over for snacks at the post-ride taqueria run.

  • Adjust your seat height on the fly with this dropper post
  • 120mm of smooth, cable-actuated travel
  • Aluminum construction balances weight, durability, and cost
  • Internal cable routing nets clean frame lines
  • Infinite travel lets you dial in the perfect height for the trail ahead
Tech SpecsWeight
Tech Specs
30.9mm, 31.6mm
cable actuated
Recommended Use
mountain bike
Manufacturer Warranty

Actual Weight

Actual weights are measured in-house by the Competitive Cyclist team.

Have questions? Chat with a Gearhead



I-Spec II Remote,30.9x400mm/120mm Travel
I-Spec II Remote,31.6x400mm/120mm Travel
I-Spec II Remote,30.9x400mm/150mm Travel
I-Spec II Remote,31.6x400mm/150mm Travel
I-Spec II Remote,31.6x507mm/170mm Travel
This includes the lever, uncut cable and housing.

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[30.9mm] 520g, [31.6mm] 536g

Reviews & Community


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great post

  • Familiarity: I've put it through the wringer

My main complaint with droppers since they've been out is reliability. When they work it's great, but far to often they don't work, or don't work right. I have the PRO (Shimano) on two bikes now and have nothing but great luck with them. The provided lever is "ok" but prefer the wolf tooth to go with it. Actuation is smooth, and everything on them has just worked flawlessly. Recommended!

how do i mount the remote? the instructions are not helpful. Can i still mount it if my brake levers are SRAM Level T? it did not specify that it ONLY comes with the I-Spec II mounted remote.

Hi Raymond, the included remote is I-Spec II only (past versions have had a bar clamp as well), so you will need an adapter or another remote if you have Sram brakes.

Post works well, seat clamp slips

  • Familiarity: I've put it through the wringer

The post drops and returns like it should, but every time I hit a big bump the seat slips back with a loud crack. It’s the single bolt clamp holding the seat rails. I’ve torqued to spec, used lock tite blue, it still slips. It’s a clean and nice design, but lacking proper function and durability.

can this fit a 34.9mm seat post?

These will fit a 31.6 mm and a 30.9 mm seat tube diameter.

does it have any offset?

Hey Jesus,

Thanks for your question! This seat post will not be offset at all. If you have any other questions please feel free to contact me directly.

What is the max insertion of this post, or the length from the colar to base?

Hey Ian!

Based on the total length of the post, the distance from the collar to the base is going to be a little less than 280mm. The max insertion depends on what frame you'd like to put the post in. Feel free to reach out directly if you have any more questions!

Very responsive, just enough travel

    You can't go wrong with this. AND comes with a real lever, not a useless thumb-stick (I'm looking at you Reverb)


    • Familiarity: I've put it through the wringer

    Works well, relatively easy to install. At cold temperatures (below 30F or 0C) it is slow to return. Due to slow returns when cold I gave it 4 stars. This is replacing a Reverb post and works just as well with better remote placement and feel.

    Are remote and cable included in this price?

    Hey Guilherme!

    The cables and remote are included. Please get in touch if you have any more questions!

    Solid, reliable, overlooked post

    • Familiarity: I've put it through the wringer

    I've used a Reverb, KS Lev, RSP plummet, Brand-x Ascent, and even TMars. DEspite paying less, this post compares favorably with the Lev. It's light enough to be on my Mach 4 XC bike, and the shifter-style lever works well with my old-school twist shift front shifter. That set-up resulted from ordering an I-spec-II SLX brake not realising Shimano had moved on from I spec B but anyway, it works! Great reliable post.

    Best price point dropper out there

    • Familiarity: I've put it through the wringer

    The Koryak doesnt look super impressive on paper... Its weight is middle of the pack, it currently is only offered in a 120mm travel, it doesnt have a sweet kashima coat to match the bling of your bike. That being said, it costs roughly half of some other posts (Reverb, Turbine, Transfer once you factor in the cost of the lever). The real kicker is that PRO offers a lifetime warranty on this post. If there's another brand out there that is offering this, I am unaware. Another really nice feature is that the lever comes as Shimano I-spec compatible... if you're running any newer gen Shimano brakes you can integrate the lever in for a very clean look. If you are running a different brand brake you can still use the standard clamp that is included in the box. If 120mm worth of travel is good enough for you (being 5 foot 8, i cant even fit a longer travel post into my frame if i wanted to), this is a fantastic option at a great price.