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Construction
To limit the amount of torsional flex (one of the potential drawbacks to an inverted design) X-Fusion uses two keyways in each leg, a concept similar to what's used in dropper posts to keep them from twisting. X-Fusion claims that the Revel is one of, if not the stiffest forks on the market, but we'll reserve judgement until we're able to get one out on the trails. A 20mm thru-axle joins the lower legs for even more stiffness over a 15mm axle. The Revel uses a tapered steerer tube, and a different crown is used depending on what wheelsize the fork is for: 29ers get 51mm of offset, and the 27.5” option has 46mm of offset. Claimed weight is 4.5 pounds (2041 grams).
Damping
The Revel X relies on X-Fusion's new Roughcut damper, a sealed cartridge system that uses an expanding bladder to handle the oil that's displaced when the fork is compressed. High and low speed compression are independently adjustable via two dials at the top of the fork, and the rebound knob is located on the bottom of the same leg.
The left leg of the Revel X houses the air spring, with a Schrader valve on the top of the leg to adjust the air pressure. In a departure from the original Revel, there's no longer a second valve on the bottom of the leg to alter the fork's bottom-out resistance. Riders that need more bottom-resistance can add oil to reduce the volume of the air chamber, which isn't quite as simple of a system when compared to the plastic spacers both RockShox and FOX use to accomplish the same result, but it should still be a relatively easy procedure.
