Sometimes you might wish a suspension seatpost could take the edge of a bumpy ride, and other times a classic dropper post is what’s needed to get your weight back on tricky descents. Now, PNW components has a one stop solution in the Coast – the world’s first suspension dropper seatpost!

PNW Coast combined suspension & dropper seatpost!

With more bikes getting dropper posts than just enduro & gravity-inspired trail bikes, there start to be more possibilities that just getting the longest travel possible. PNW Components out of Seattle like to put droppers on gravel bikes, adventure bikepacking & trekking bikes, even urban commuters. For a relatively minor weight penalty you get more control on steep downhills (plus extra safety & fun) or even just making getting on & off the bike easier.

PNW Coast combined suspension & dropper seatpost
c. PNW

Apparently, PNW got a lot of requests from gravel & hardtail riders to see if they could add a bit of cush into a dropper to smooth out bumpy roads & trails, and that’s exactly what they did with the Coast. On top of a pretty standard dropper post, PNW has added a second air chamber with 40mm of tunable air suspension.

Inside is a 2-chamber hydraulic cartridge that manages the post going up or down. A separate air chamber lets you control the stiffness of the suspension – lower pressure for a supple movement through the 40mm of travel, or high pressure to all but lock it out. Just thread a shock pump into the valve on the back of the 2-bolt head, and dial in your preferred setup.

PNW Coast combined suspension & dropper seatpost

The new Coast combined suspension dropper post is available in multiple sizes and routing configurations to fit pretty much any bike.

PNW Coast combined suspension & dropper seatpost

In 30.9 or 31.6mm diameter, the Coast gets 120mm of dropper travel, while a 27.2mm version drops back to 100mm. All three are available with internal routing, or an external actuation from the collar.

PNW Coast combined suspension & dropper seatpostThe two larger diameter posts sell for $179/ 192€ with either internal or external routing. The smaller 27.2mm post is a bit more at $199 / 213€. Several different remote levers are available for either flat or drop bar setups, adding a bit more when you buy the post. PNW backs all of their suspension/dropper posts with a 3-year warranty.

PNWcomponents.com

18 COMMENTS

  1. I’ve just got to poke fun at the video….can’t remember the last time I was commuting around town and wished I had a dropper…… 🙂 Maybe I’m doing it wrong.

  2. This isn’t a first. The Exaform 861 from KindShock does a similar thing by design (albeit in a much cheaper and heavier design).

    -Ed

  3. I wonder if the 40mm of ‘travel’ will be damped at all, otherwise it just be a pogo stick on a dropper. Someone hurry up and review it already!

  4. The Bikeyoke Divine has a similar feature. In the mid-travel area there is some suspension, this is the so-called power-climbing zone. The post is fixed in the top and bottom position.

    “One of the features, is the “Tech-Climb” feature. While our DIVINE SL is completely locked in place in the top-out and bottom-out position for consistent riding position, the post can slightly spring in the middle positions. We´ve found out, that extremely steep and technical (e.g. rooty or rocky) uphill sections can be conquered with much more ease, when the saddle is just slightly dropped (lets say about 1-2cm). Having the saddle dropped just a bit (and not completely), the “Tech-Climb” feature” also adds some suspension to the post, flitering the impacts of roots and rocks. Back fully extended or fully dropped, the post is rigid again.”

    https://www.bikeyoke.de/en/seatpost-divine-sl-30-9.html

  5. What does this thing weigh? If the Cascade is 600 g, I imagine this thing is a tank. Maybe that’s why there is no weight published anywhere? Not sure I need a dropper on my gravel bike that bad.

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