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PNW Components
Coast Suspension Dropper IR Seatpost

4.666666666666667 out of 5 stars
3 Reviews
$209.00

Style & Size:

Quantity


Smooth out rough rides with the Coast Suspension Dropper Post—40mm air suspension plus on-demand drop

What Our Gearhead® Experts Are Saying:


"The Coast Suspension Dropper Post is a game-changer for mixed-terrain rides. The 40mm of tunable air suspension takes the sting out of bumpy gravel trails, and the dropper function makes transitions between climbs and descents effortless. I’ve noticed way less fatigue on long rides, especially when paired with the external routing for easy setup.”


When the path turns rough, we want our gear to work with us, not against us. The PNW Components Coast Suspension Dropper Post delivers exactly that—smoothing out the ride with 40mm of tunable air suspension while giving us the freedom of an on-the-fly seat height adjustment. Whether we're exploring backcountry gravel, commuting through city streets, or loading up for a bikepacking weekend, this dropper keeps things comfortable and efficient.


Built with a dual-chamber hydraulic cartridge, the Coast provides reliable suspension without the wobble. It’s available in both external and internal routing options, making installation straightforward and clean. With sizes compatible across a range of bikes, this post is our go-to for extra comfort and control on every ride.


Details

  • Smooth out gravel, XC, and commuter rides with 40mm of air suspension
  • Dropper post functionality allows quick seat height adjustments
  • Dual-chamber hydraulic cartridge for stable, wobble-free performance
  • Internal and external cable routing options for versatile installation
  • Compatible with various seat tube sizes for wide-ranging bike compatibility
  • Ideal for hardtails, gravel grinders, and adventure-ready commuters
  • Does not include remote for actuating dropper
  • Item #PNW0013
Material
aluminum
Diameter
27.2mm, 30.9mm, 31.6mm
Length
[27.2mm] 385mm, [30.9mm, 31.6mm] 400mm
Offset
0
Travel
[suspension] 40mm, [dropper] (27.2mm) 100mm, (30.9mm, 31.6mm) 120mm
Dropper
cable-actuated
Claimed Weight
[27.2 x 100mm] 596g, [30.9 x 120mm] 596g, [31.6 x 120mm] 610g
Manufacturer Warranty
lifetime

What do you think about this product?

Overall Rating

4.5 based on 3 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 1 reviews
5 Stars - 2 reviews

Fits True To Size

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4 out of 5 stars

January 15, 2022

Well built but not for big guys

Familiarity:
I've used it once or twice and have initial impressions
Height:
6' 5"
Weight:
250

Well built but not for big guys. At max pressure It bobbed while i was pedaling, I am 6'5" 250lbs. So if your over that i do not recommend it. I gave it 4 stars because i am sure it would work well for lighter riders. Guessing 200 and under would work well but not sure above that.

Eric S
5 out of 5 stars

May 14, 2021

Upgrade that any hardtail needs

Familiarity:
I've used it several times
Size Bought:
30.9 x 120mm
Height:
5' 8"
Weight:
160

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.

user image
Karlo R
5 out of 5 stars

April 21, 2020

100% diggin it

Familiarity:
I've put it through the wringer

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.

Andrew C

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