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  • FOX Racing Shox 34 Float SC 27.5 120 Remote-Adj FIT4 Boost Fork
  • FOX Racing Shox 34 Float SC 27.5 120 Remote-Adj FIT4 Boost Fork Top
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FOX Racing Shox34 Float SC 27.5 120 Remote-Adj FIT4 Boost Fork

Item # FRS008O

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  • Matte Black,1.5T, Kabolt, 110mm ($943.00)
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Item # FRS008O

Feathery, not fragile.

FOX introduced the 32 Step-Cast a couple of seasons back to shave excess weight from their standard 32 Float, albeit with some sacrifices in stiffness and support, seeing it's packing stepped 32-millimeter stanchions and only 100 millimeters of travel. However, stiffness wasn't exactly on FOX's mind, as the 32 Step-Cast was solely intended for cross-country racers looking to shave precious seconds from long climbs and sprints towards the finish line. Building upon this weight reduction idea, the FOX 34 SC 27.5 120 Remote-Adj FIT4 Boost Fork shaves excess weight from a traditional 34 Float, but without being as spindly as the 32 Step-Cast Fork. It's intended for applications ranging from grueling marathon races to everyday rides by offering trail-worthy support and stability, without weighing you back with excessive bulk.

FOX's 32 Step-Cast Fork that was introduced a couple of seasons back to shave every last gram for racers seeking an advantage in terms of all-out weight savings, albeit with some sacrifices in stiffness and support, seeing it's only packing 100 millimeters of travel and features narrower 32-millimeter stanchions. Well, FOX is at it again, proving they're never really content with the status quo in creating one of the lightest 120-millimeter forks available in the 34 Float SC 27.5 120 Remote-Adj FIT4 Boost Fork.

The secret to its incredibly lightweight disposition lies in the stepped lowers of the 34 Step-Cast, which are hollowed out to reduce weight, complete with shortened shaft lengths and the same 8-millimeter damper shaft as used in the 32 Step-Cast Fork. In terms of actual weight savings, you'll find it's approximately 4.8 ounces lighter than a comparable 32 Float with 120 millimeters of travel and a whopping 8 ounces lighter than a 34 Float with 140 millimeters of travel. Both of these figures might not seem like a big deal, but they're pretty significant seeing the lengths some racers go for weight savings, especially in a world where carbon components will cost you a pretty penny and likely not reduce as much weight as running this 34 Step-Cast Fork.

Instead of being solely intended for cross-country domination, the 34 Step-Cast sets its sights on everything from epic trail rides to marathon events and adventure races where you'll find a mixture of trail conditions ranging from smooth-buffed dirt to bumpy root and rock sections. Seeing it's packing 34-millimeter stanchions, it's inherently stiffer than the more spindly 32 Step-Cast. In fact, FOX claims it's a whopping 15 percent stiffer than a 120-millimeter Float 32 Fork and it's on par with a 34 Float with 140 millimeters of travel, in terms of stiffness and support on bigger hits and technical terrain. Ultimately, this means you'll be able to use a trail-worthy fork on your cross-country race bike or shorter travel 29er without compromising efficiency or sacrificing the support and plushness you've become accustomed to with a 34 Float.

Delving into the air spring and damper available with the 34 Step-Cast, you'll find this particular fork is set-up for the needs of competitive racers, thanks to its 2-position adjustable remote. The Fit4 damper is hooked up to a handlebar-mounted remote that allows you to lock it out without having to reach down to your fork's uppers, thereby preserving precious energy and time when you're sprinting towards the finish line or standing up to pedal swiftly on smoother stretches of trail. The Float air spring has EVOL, which is FOX's term for increasing the negative air spring volume for a more supple feel that's more responsive to soaking up bumps, rocks, and roots along the way.

  • Weight savings without sacrificing trail chops
  • Designed for marathon events and epic trail rides
  • 34 Step-Cast with 120mm of travel, Kabolt 110mm axle
  • Stepped, hollow lowers significantly reduce its weight
  • Stiffness is similar to that of 140mm 34 Float Fork
  • Float air spring with EVOL for small-bump compliance
  • Fit4 damper with 2-position remote for locking it out
  • 27.5in version of 34 Step-Cast clears 2.8in tires
Tech SpecsWeight
Tech Specs
120 mm
Stanchion Material
Kashima-coated aluminum
Lower Material
Crown Material
7000-series aluminum
Wheel Size
27.5 in
Steer Tube Diameter
1-1/8 - 1-1/2 in tapered
Stanchion Diameter
34 mm
44 mm
Spring Type
Float air with EVOL
Fit4 with 2-position adjust remote
2-position adjust remote: Open, Firm, external rebound adjust
remote-activated lockout
15 x 110 mm Boost Kabolt (bolt-on)
Recommended Use
cross-country, trail
Manufacturer Warranty
1 year limited

Actual Weight

Actual weights are measured in-house by the Competitive Cyclist team.

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Matte Black,1.5T, Kabolt, 110mm

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[34 Step-Cast, 27.5 in, 120mm travel, Kabolt 110mm axle] 1589 mm

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