It was bound to happen sooner or later. Formula has gone Boost. Specifically, their Enduro focused 35 suspension fork now has its own Boost version called the Selva. The fork may feature the newest axle spacing and clearance for bigger tires, but much of the design remains the same – which is good news for fans of Formula’s ultra plush suspension. However, there are a few tweaks that are meant to make the wider chassis just as effective at slaying trail as the current 35…
One of the biggest changes to the Selva is obviously the fork’s sizing. Thanks to Boost 110 x 15mm axle spacing, the fork has room for a new 27.5+ tire size which is the same as the 29″ version of the fork. Limited to 120-160mm of travel, the 27+/29″ fork has a 565mm axle to crown measurement with 51 or 46mm offset. The Selva will also be available in a 27.5″ version with standard 120-160mm travel or the extended 170-180mm travel (550mm A2C at 160mm, 570 A2c at 180mm).
The Selva still utilizes a 35mm chassis with a hollow forged aluminum crown and 1.5″ to 1.125″ tapered steerer, but the lowers see additional attention for extra stiffness. As Formula points out, simply stretching a current set of non-Boost lowers could result in less stiffness, so they added a hexagon design to the lower legs. This claims to stiffen up the fork without making it too stiff and without adding too much weight. Though based on the claimed weights of 1790/1795g for the 35, the Selva is a bit heavier at 1940/1980g.
External adjustments remain the same with a 21 click rebound adjustment, 12 click low speed compression adjustment, and a high speed lockout lever that is compatible with Formula’s RCC, or Remote Cartridge Control remote lockout lever. Inside you’ll find an air spring with Formula’s Internal Floating Technology and a steel dual coil negative spring.
The Selva is also compatible with their Compression Tuning System which allows for three separate valve heads. The three colors correspond to different compression tunes (soft, medium, and firm from left to right) and they can be changed out with the tool shown to the right without having to bleed the fork or change fluid.
You’ll also find their Integrated Locking System thru axle, presumably in a longer version for Boost spacing. This axle features a removable lever head which allows it to be repositioned or removed completely after installing the axle. Formula is also now offering the ILS Key Tool as a lever alternative which is lighter than the lever and builds in a 2 and 5mm allen tool that stashes inside of the axle when not in use.
The Selva will be offered in the two wheel sizes (standard or extended for 27.5″) and in three base colors – matte black, matte white, or matte Ultraviolet. Further color options can be added with their sticker kits which will be available in Ultraviolet or Stealth Black.