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PNW ComponentsCoast Suspension Dropper IR Seatpost

Sale 20% Off$142.99 - $158.99

Item # PNW0013

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  • Black, 27.2mm x 100mm Drop, 40mm Travel ($158.99)
  • Black, 30.9mm x 120mm Drop, 40mm Travel ($142.99)
  • Black, 31.6mm x 120mm Drop, 40mm Travel ($142.99)
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Item # PNW0013

Coast Suspension Dropper IR Seatpost

Over the years we've seen suspension introduced into just about any component you can reasonably imagine, so at first when we heard the engineers at PNW Components announce a suspension seatpost, we weren't floored — that is, until we dug just a touch further, and found that the innovative brand took things a step further, providing 40mm of tunable air suspension into a dropper post, launching the Coast Suspension Dropper IR Seatpost. This unique post is designed to take the sting out of jarring forces, like a pothole that catches you around a corner, harsh curb, or rocks and roots on singeltrack. It's optimized for a whole slew of riding styles as well, whether you want to add comfort and dismount ease to your commuter, squish to your gravel rig, or adaptability to your bikepacking machine.

The post is built with the mechanics we've come to know and trust from PNW, and packs in 120mm of drop for getting behind the saddle (100mm on 27.2mm version). This provides plenty of space for moving around on the bike, and lowers your post to help achieve flat-footed dismounts, which are exceptionally handy with a fully-loaded bike that's packed for adventures. This partners up with 40mm of travel that eats up chatter, but won't claim to replicate the feel of a full-suspension rig. While a full-suspension moves your rear wheel to conquer square-edged bumps, and more than likely offers well over 40mm of travel, the post simply features a telescoping travel to make riding a little smoother when the going gets rough.

  • A dropper post that packs in air suspension to soften the ride
  • 40mm of fully tunable suspension damps hits from rocks and potholes
  • Available with 100-or-120mm of travel for comfort in the cockpit
  • Optimized to work with commuter, gravel, trail and enduro rides
  • Dropper posts improve ease of dismount with fully-loaded bikepacking rigs
  • Compatible with 27.2, 30.9, and 31.6mm seat tubes with internal cable routing
  • Does not include remote for actuating dropper

Tech Specs
Diameter27.2mm, 30.9mm, 31.6mm
Length[27.2mm] 385mm, [30.9mm, 31.6mm] 400mm
Travel[suspension] 40mm, [dropper] (27.2mm) 100mm, (30.9mm, 31.6mm) 120mm
Manufacturer Warrantylifetime

Actual Weight

Black, 27.2mm x 100mm Drop, 40mm Travel
Black, 30.9mm x 120mm Drop, 40mm Travel
Black, 31.6mm x 120mm Drop, 40mm Travel
No lever or cable,housing included.

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[27.2 x 100mm] 596g, [30.9 x 120mm] 596g, [31.6 x 120mm] 610g

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

Have questions? Chat with a Gearhead

What do you think about this product?



are the cables internally wired


are the cables internally wired

>Rating: 5

Upgrade that any hardtail needs

I've used it several times
True to size
Size Bought
30.9 x 120mm
5` 8"
160 lbs

I was searching for a dropper post for a while and saw this with air suspension. I bought it and installed it with the PNW loam lever on my Giant Talon 2 and its been amazing so far. It is not meant to make it feel like a full suspension bike but its meant to smooth out the rough bumps and big rocks that you come across. I highly recommend this for anyone who's in need of a dropper post.


Where is the user manual? The is a little note in the box saying the manual is only on-line, as to save trees, which is awesome. But, where is the manual in this site?

>Rating: 5

100% diggin it

I've put it through the wringer
Runs large

threw it on a SC Stigmata with 650 wheels and it's just an all around good time bike now. where i notice the suspension the most is on rough climbs. the gentle suppression allows for you to maintain the pedaling power versus being bounced around from big rock to big rock. also super pleasant on the pelotas when you find a random pothole.