Fulcrum Red Fire 5 27.5" 2 Way Fit-Ready AFS Boost wheelset

The Enduro lays down some clear rules: the cyclist must be able to rely on solid and agile materials that are suitable for climbing and especially descending, when speed reaches its max and the terrain is varied, often very technical and sometimes with a number of crucial points that are unknown.
This is an extremely selective discipline in which every single mechanical component is pushed to the limit for prolonged periods of time.

Because of the tough conditions the wheels are required to perform in, Fulcrum's R&D department has chosen to create a Trail-Enduro wheel that's shorter and wider: the result is a stable, secure and fast support base.
The rim has a 27C groove and uses its wide base to keep the tyre in shape even in the nastiest of bends, while the structure of the wheel offers optimum support thanks to its 28 straight head spokes that make the wheel more solid and reactive.

There's no room for hesitation here, it's all about choosing the right line, placing your trust in the material and you're off.


  • Tyre type: 2-Way Fit Ready (for clincher and tubeless).
  • Tyre size: 27.5".
  • Discipline: Trail / Enduro.
  • Rim material: Aluminum.
  • Profile height: 20 mm.
  • Rim width: 32 mm, ETRTO 27C.
  • Tyre width: From 2.0” to 2.5".
  • Braking system: disc brake, AFS.
  • Front axle compatibility: HH15-110 Boost.
  • Rear axle compatibility: HH12-148 Boost.
  • Front wheel spokes: 28, Left 14 - Right 14.
  • Rear wheel spokes: 28, Left 14 - Right 14.
  • Spokes material: Stainless steel.
  • Spokes profile: Rounded, straight pull.
  • Nipples: Aluminum.
  • Front hub: Aluminum, aluminum flange.
  • Rear hub: Aluminum, aluminum flange.
  • Bearings: Sealed cartridge bearings.
  • Aluminum Axle. One hub fits all.
  • Weight limit: 109 kg (comprising cyclist).


AFS Axle System™
The Axial Fixing System™ is the solution developed by Fulcrum® to fix the disc brake to the hub. The constraint granted by the butt area of the release mechanism, greater than in familiar standard ones, makes it possible to obtain greater structural rigidity and therefore more precise and powerful braking.

2-Way Fit Ready
The evolution of tubeless in a rim for racing or mountain bikes.
Fulcrum rim profile ensures perfect compatibility with tubeless-ready tires after quick easy transformation.
They have combined the advantages of tires without inner tubes, lower rolling resistance and better ground grip on bends—in other words, improved steering, true response and increased comfort.
The transformation calls for tape and tubeless valves, and a sealant must be used.

Wide Rim Tech
Fulcrum®’s R&D department, following requests from the competition circuit, has worked to create rims that are wider than before, about 4 mm or more than previously. This technical choice provides an ideal basis for 25/28mm tyres, the sizes currently popular.
This ensures stability, excellent handling and superior comfort.


  • x2 Tubeless valves.
  • Valve tool.
  • Rim tape.
Real weight 716 g Front wheel spokes 28 Rim width 21c Rim material Aluminium Hub material Aluminium Front wheel real weight 891 g Real weight 716 g Front wheel spokes 28 Rim width 21c Rim material Aluminium Hub material Aluminium Rear wheel real weight 1102 g