Specialized Command Post Review

Components Pro Reviews

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Reviewed by Brian Mullin http://www.gramslightbikes.com/

I am really liking the Specialized Command Post adjustable seatpost, which uses a mechanical system with an adjustable air spring, and has three locking positions, and a simple one bolt saddle clamp that is easily to install and tune the saddle’s position.

Specialized Command Post
The Command Post (CP) is a mechanical 3-position locking height adjustable seatpost, with a 100mm range, a handlebar mounted remote, a single bolt keyed saddle clamp system, and is available in 31.6mm x 400mm and 30.9mm x 400mm size options. The three height settings are the Power position or full extension, Cruiser, which is 35mm below Power, and the Descender, which is 100mm below Power. The remote lever comes as a left handed version by default, but a right one can be ordered. The CP weighed in at 525 grams, not including the remote.

Measured Specs
Command Post weight – 525.2 grams
Remote w/cable/housing weight – 62.3 grams
Insertion length – 206mm (8 1/8″)
Stanchion length – 102mm (4″)

Installation
I first checked the pressure via its Schrader valve, which is located on the bottom of the post. The pressure range is 25-35 psi, with higher psi causing a faster rebound. Mine was at the minimum of 25 psi (factory default), so I left it that way. The insertion area of the post has a rough finish, which functions as anti-slippage zone, and helps prevent any creeping. I placed the remote snug up against my left Magura Louise brake, and eyeballed the required cable housing length, and cut the excess off. I inserted the proprietary cable through the remote, the right angle pipe and into the housing. The messy portion started next. I ran the cable up through the post’s barrel adjuster, and meshed in the cable’s housing. The cable is tweaked up over a sharp bend on top of the activation lever, and is clamped down with a pinch bolt and washer using a 3mm hex. The lever doesn’t have a groove for the cable, so it’s difficult to clamp things down properly. With the sharp bend and the lack of a grooved slot, I had issues getting it snugged down, and proceeded to crush and damage the cable. Once everything was installed, I needed to tune the cable’s tension, which required re-clamping the cable, exasperating the already crushed cable. Since the cable is proprietary (it has a barrel end piece), you need to get another one from your LBS or Specialized, though for 2011, they have updated the remote, and it will accept a standard shifter cable.

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Installing the saddle is an easy task due to the one bolt and keyed nut clamp, which use a wedge and rail clamp that each has a groove that holds the saddle’s rails. Just loosen the bolt wide enough (make sure the bolt is well greased), so that the wedge and clamp will allow the rails to pop into the slot, and position the saddle fore and aft, and its horizontal pitch, and then clamp the bolt down tight using a 5mm hex.

To perform the final tuning, actuate the remote, and press down on the saddle to the middle position, and let go. If the seat pops up loosen the cable with the barrel adjuster, and if the seat won’t go down, tighten the cable. The sweet spot where the cable’s tension works properly is small, and micro turns of the barrel adjuster is all it takes, but once it’s located the system works like a charm.

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About the author: Brian Mullin

Brian has been part of the Mtbr team since 2007, where he has become an integral member of the review and test staff, specializing in technical articles. He likes to push the limits in all the sports he obsesses in, whether it's mountain biking, whitewater kayaking, extreme skiing, or sport climbing. He takes those same strengths and a good dose of insanity to his reviewing and writing on mountain biking products, creating technical, in-depth and hyperbolic articles. Whenever he's not on the bike, he might be found watching MotoGP racing, otherwise look for him out on extremely technical singletrack.


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  • Ecogeek says:

    Looks good. Thanks for review. But can’t wait to see the review of the new SRAM Reverb that’s just released. Looks even better imo. http://www.sram.com/rockshox/products/reverb

  • francois says:

    It’s great to see more choices in this very important category. Is there a clear winner so far?

  • Jay says:

    I had, and returned, two of these posts, eventually getting a full refund. Both would rotate in technical terrain. Like the reviewer, I initially thought the rotation was at the clamp, so I marked it with a paint pen. In fact, the rotation was internal. The seat is capable of swiveling under pressure. I had the seat turn 90 degrees in technical terrain, very nearly causing a crash. It takes force to turn the seat, so it only happens when you really need the seat to stay straight. Both posts went back to Specialized, and they denied it could happen even after I demonstrated the flaw to my Specialized dealer. I wanted to keep the post, since it was otherwise excellent, but Specialized did not care to fix it. The warranty replacement had the same flaw, so my LBS just gave me my money back. Good shop support, bad manufacturer support. As a result, I am riding an old telescoping post. Very poor outcome.

  • Brian Mullin says:

    Sorry to hear about that, I will keep an eye on mine.

  • Waterat says:

    I have not heard of any of the adjustable seatposts not having some sort of problems.
    Still I have run a Gravity Dropper for 4 years and could not imagine riding without it. Whoever comes up with a reliable one will corner the market.

  • The Bear says:

    i have i had a similar experience with this post to Jay.
    bought this post in late 2009 didn’t ride it till spring 2010, rode it twice and post kept sticking in up position. eventually when i managed to get it to stay down it would fire into my balls when hitting rough stuff. wasn’t a cable tension issue. it wouldn’t hold air in the chamber. sent back to specialized who stated that i had broken it through misuse buy landing on it heavy. i rode this on xc trails without any drop off or jumping.
    i used to work as a specialized retailer and i have seen quite a few of these being sent back though my shop. ultimately i had to spend £55 on the service cost specialized charged me to fix this, there warranty is a joke. DONT BUY THIS POST, i cannot stress this enough, lot of others have posted on the net with the same issues. that speaks for its self; specialized you need to wake up and do some testing before putting and expensive product to market!

  • Brian Mullin says:

    Sorry to hear that, I am now testing the 5 inch version, and like the 4 inch one, I have never had any issues, and I ride ugly technical terrain with lots of ledges, drops, and some jumps tossed in.

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