Specialized Command Post BlackLite Review

Components Pro Reviews

This mechanical adjustable seatpost has three positions, and uses a collet system for locking, a remote cable actuation for release, and air spring for return. The post is an upgrade of last year’s Command Post, and includes innovative quick-release remote, three travel options, improved internals and lighter weight. Collectively, the minor improvements and decreased price make it an outstanding seatpost in the highly competitive adjustable seatpost market.

Command Post BlackLite
The Command Post BlackLite (CP) is a mechanical 3-position locking height-adjustable seatpost, that comes in 75, 100 and 125mm ranges, and has a handlebar mounted remote, and single bolt keyed saddle clamp system. It’s available in 30.9mm and 31.6mm diameters, 75, 100 and 125mm travel options, and 330, 380 and 405mm lengths, respectively. The three height settings are the Power position or full extension, Cruiser, which is 35mm below Power, and the Descender, which is the lowest travel position, or 75, 100, 125mm below Power. The CP uses a mechanical collet to lock the stroke in position, and cable lever actuation to release the collet for up and down movement, and air controlled spring for return. The head is bonded into the shaft, and it uses a dual keyway design to keep the lateral twisting at a minimum, and things are protected by triple-lipped wiper with Dual-Lip X-Ring seal. The remote system has a quick-release at the head, and has an inline barrel adjuster for cable tension. The CP weighs 500, 530 and 545 grams, for the increasing travel options.


Installation
I first checked the pressure via its Schrader valve, which is located on the bottom of the post. The pressure range is 20-40 psi, with higher psi causing a faster rebound. Mine was at the minimum of 25 psi (factory default), so I increased it to 30 psi, since I liked a quicker movement. The insertion area of the post has a rough finish, which functions as anti-slippage zone, and helps prevent any creeping,

The remote can be integrated with Specialized locking grips, in which it replaces the lock, or mounted separately on the handlebar, and I choose the latter. I placed the remote snug up against my left Magura MT8 brake, and eyeballed the required cable housing length, and cut the excess off. I then located where I wanted the inline adjuster to be located, cut the cable, and spliced the inline section into the housing. I threaded the cable through the remote, the noodle and housing, and finally into the barrel. Measure out 17mm between the housing ferrule and the bottom of the barrel, and tighten it, and maneuver it into the slot, and pull the housing down into its guide.

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, 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. Make sure that the proper torque (120 in-lb/13.5 Nm) is applied to the bolt, else it the saddle can tilt at an inopportune moment. 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 inline 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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  • Alain says:

    Not sure how SP can claim this to be 100g lighter than previous model when they list 500/530/545g (75/100/125mm size) and the previous model MTBR review is 525.2g (100mm) ! I have last version and like it a lot, but it’s a lot heavier than gravity dropper (even though it uses air shock rather than a spring) or the jopplin (which I do not like as the head wiggle and I need to be fully up and locked as being off a bit will eventually hurt my knees

  • Steve Moss says:

    Bought a BlackLite in April. Worked great until the first of Sept. when it started to leak air.Took over 6 weeks to get it back from the shop. Lots of excuses from the shop about Specialized as to why it took so long. Had only two rides on it and it just shot right out the top. Total failure. Now at the end of Oct., still no seat post back from Specialized. Not very happy about this Very Poor Service.

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