PNW Components Coast Suspension Dropper Post - External
Ride-smoothing suspension and a dropper in one seatpost, the external-routed PNW Components Coast Suspension dropper post helps all riders, from trekkers to cross-country and even weekday commuters.
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- 40 mm air suspension
- External routing
- 2-chamber hydraulic and adjustable air cartridge
- Perfect for commuting, gravel and hardtail bikes
- Cabling and remote lever not included
- Note: While this suspension seatpost helps absorb larger bumps when you're seated, it does not provide the small-bump compliance of rear-suspension mountain bikes
- Covered by the manufacturer's lifetime warranty
Imported.
View all PNW Components Dropper Posts| Best Use | Cycling |
|---|---|
| Seatpost Diameter | 27.2 x 100 MM Travel: 27.2 millimeters |
| Seatpost Length | 27.2 x 100 MM Travel: 380 millimeters |
| Seatpost Setback | 27.2 x 100 MM Travel: 0 millimeters |
| Seatpost Travel | 27.2 x 100 MM Travel: 100 millimeters |
| Cable Routing | External |
| Seatpost Material | Aluminum |
| Weight | 540 grams |
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Must have for road racing and crits!
If you're tuning the post for an aggressive aero position, you'll need to run much lower pressures than what PNW recommends. Once you find the right pressure, the suspension helps a ton at reducing fatigue; while also reducing rolling resistance without the aero penalties of a wider tire. Suspensions and droppers have serious benefits for racing that are being totally overlooked. I was still fresh at the end of one of the fastest group rides in my area. Normally, I'd be fatigued and tired, so it definitely helps a lot. As far as I know, this is the only dropper on the market that has both a suspension and dropper function, so this is the only post I'll be recommending right now.
Great Product!! MAJOR PROBLEM WITH DESCRIPTION!!!
The product is great! I don't have any problems with it. It has made riding so much nicer and works really smooth! However, they fail to tell you in the description that this does not come with the lever and cabling which is a super big flaw. Because what happens is, you end up buying the product, get super excited about it, get it, and find out that you need to go spend another $60+ dollars to get the cabling and lever. They need to put that they do not come with it in the description!!! I returned and bought the same product with the cabling and lever in one package for a much better deal than having to get them separately. I'm still super disappointed because I had to wait another week before I got to experience how great the product actually was!
Solid, but don't expect too much from suspension
I'd say 4.5/5 but since I can't choose that, I feel it's closer to rounding up than down. Got two of these, one for me, one for my wife. We've not had droppers before so that alone makes this a significant upgrade for us. There's not a lot of options for droppers that fit with our older hardtails (27.2 and needing external routing) so I'm glad that PNW is making something to fit that niche, with this one having the suspension feature and slightly more travel than the Pine 90 for the same price. That said, after a few rides I'm not so sure the suspension feature is a huge advantage: it does soak some bigger bumps *slightly* if you stay seated, but it's not like they go away entirely and you still feel it some, it just takes the edge off. To be fair, this is as advertised and they clearly make no claim that it will make a hardtail as plush as a full suspension. If the bump is big enough, you're still going to want to be out of the saddle. Even if it's not a strong point, it's not a negative either, as it still works as a perfectly fine normal dropper post otherwise. A huge plus for having the cable attach to the outer collar instead of by the seat rail clamps on the inner post like some other externals have: honestly this is the only way that makes sense to me to have a nice predictable length of cable and housing without having to introduce excess slack or kink the cable at different post heights. One minor dislike is that there's an ever so slight side-to-side play between the inner and outer posts. Maybe this is normal for droppers and that's just our lack of experience with them, but it's also really only noticeable when lifting or handling the bike and not when riding. As a final note, the Q&A section does point out that this doesn't come with the lever/remote/cabling, which is fine, but the answers suggest that a buying a PNW lever will have all necessary bits to install, which is not necessarily correct at least for the PNW Loam lever. The Loam comes with the lever and inner cable, but not the housing or ferrules, which was a quick and cheap ($5) trip to the LBS to supply those. Just be sure to check what actually comes with your lever of choice.
not for short people or persons at 200# or heavier
I really wanted to like this post but there are two problems. If you need a seatpost that sits under 7" from the collar, look elsewhere. I'm 6'1", and on a Surly Midnight Special with a horizontal top tube, I can't reach my pedals. That show-stopper aside, I weigh exactly 200 pounds and, at the max 300psi, the shock-absorber sags in a way it isn't supposed to. It's not supposed to sag at all. The action with the PNW lever is grungy and not at all comfortable. So I guess I will try it on a different bike with a sloped top-tube, lose some weight, and get a different vendor's lever.
Commute comfy and agile
Was super stoked that it arrived as just the dropper post so I can pick one out. The packaging it arrived in was delightfully minimal. It came with a groovy PNW sticker. Was relieved that REI had the externally routed one cuz PNW was out. It works pretty amazing. Really like the smidgen of travel to smooth the road noise out and make hitting the utility cover dips on the fresh roads, considerably, less jarring. The price for it is sweet. It is not race weight but it is perfect for what it was designed for -- the commuter.
Works great for a 220 lb. rider
I bought this with some doubt, but it has turned out really well for XC and trail riding on my hardtail. As a dropper, while 100 mm of travel isn't a whole lot, it makes a huge difference if you're trying to get low for drops, or move around for turns or pumping. I, like many others, have installed a dropper on an older hardtail to make it more capable by modern standards. The Coast has been great for that. As a suspension post, I weigh around 220 lb. and I run it at 250 PSI (according to my $30 shock pump), and that's enough to prevent bobbing during hard pedaling. You can take it up to 300 PSI, but that would be too hard for me. The Coast is effective at soaking up unexpected bumps on the trail---there's a lot less posterior pounding by the end of the day. So far, it's only needed pumping up every few months or so, less often than my tires. I use it with the PNW Puget 2X lever, externally routed. The installation directions were good and it works fine. This is a great upgrade for a bike that will be used off-road; as a suspension seatpost it's not like riding the sofa of a full squish bike, but it's easier on your tail and I would be reluctant to give that up, now. Highly recommended.
Great for commuting and trail
The suspension works great if you get a perfect pressure. Takes time to get though. Stanchion rotates a bit. That's normal within 1-2mm of rotation, according to PNW. I experienced loss of pressure in an 55 KM of my first commuting. Not sure this is normal or defect.