July, 2016: The D.O.S.S. is DiscontinuedThe Fox D.O.S.S. is a three-position post within Fox's CTD Ride Dynamics System; the CTD refers to the three positions; climb, trail, and descend in which riders access each position using a unique dual lever remote. The post can be ridden at full height, 40mm drop, and fully dropped. A shorter black paddle on the remote grants access only to the middle 40mm drop position, removing any guesswork regarding saddle height beneath the rider. Although unique and innovative, the remote is rather bulky. When mounted atop the bars while using a front derailleur, the bulkiness is exacerbated and the remote becomes very difficult to use when navigating technical, unfamiliar terrain. For comparison, finding the middle position typically wasn't a very difficult job on the other multi-position dropper, the Specialized Command Post IRCC, and no second lever is incorporated onto their remote.
The D.O.S.S has a snappy return speed and the external cable routing allows this dropper to be mounted to a greater variety of bikes. Setup is pretty straightforward: the saddle clamp holds tight, and you'll never get left in the woods with a dropped seatpost, 20 miles between you and your front door. If the cable is damaged or snagged rendering the post unmovable, it can be manually actuated.