Fox has long been sidelined in the dropper seatpost game, but the release of its new Transfer post could change all of that. We’ve been lucky enough to get our hands on an advance model for preview and test to see if it’s got what it takes to stand out in a crowded market.
While visually similar to the brand's old DOSS post, this is an all-new design, most notably in that it’s a stepless system. That means it can be set anywhere within its travel rather than the three fixed positions of old. It also uses a sealed hydraulic cartridge instead of the air-sprung, mechanically actuated DOSS. There are 100mm, 125mm and 150mm travel options and it’s available in either 30.9 or 31.6mm diameters.
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You can also choose between a model with internal ‘stealth’ cable routing or one with an external routing on the lower of the post, which will be great news for anyone with an older frame. There are two styles of remote lever on offer, with an under-bar option designed for people running single-ring systems and a bar-mounted lever that’ll sync with anyone running a left-hand shifter. Both are much slimmer and neater than the rather clunky-looking remote seen on the DOSS.
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Clever cartridge
The really new stuff is, of course, hidden inside the post. All the hydraulics are in the upper section to keep the weight down, and Fox says the internals are much larger diameter than rival designs. This means that they can keep internal pressures lower, which they say results in better durability and also lower lever force.
Low lever force seems to have been a goal for Fox, something aided by a linkage on the cable actuation assembly of the internally routed model. The return speed on the post isn’t adjustable in the way that a RockShox Reverb is, but it can be modulated depending on how hard you press the remote. That’s achieved by using a 'spool valve', which controls the flow of oil through the internal ports.
The design also incorporates a pressure relief valve that helps compensate for changes in the oil volume at extreme temperatures and altitude changes, keeping the lever feel consistent. Fox also claims that it helps eliminate pressure spikes, leading to a more durable design.
Ride impressions
A promising post
You can read more at BikeRadar.com
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