Fulcrum Speed Combo 42/57 DB 2WF wheelset 2026

The new Fulcrum Speed Combo 42/57 are Fulcrum’s step into a new era and dimension, the result of the fundamental synergy between form and function: Form, Function, Fulcrum

An evolution without compromises: the new rims - higher, wider, lighter and more aerodynamic - the new hubs and the new spokes come together in a perfect wheel system. The new wider rims, paired with 28 mm tires, provide a level of performance without compromises, with optimum aerodynamic penetration, rolling resistance and comfort. The rim is constructed with resins and fibres made to Fulcrum specifications where, unlike previous versions, we use a new composite mix of FF100 high modulus unidirectional fibres for the Speed Combo 42/57. Through numerous experiments we have reached the perfect mix of fibres, which along with their correct layup and an extremely precise control of the resin, allows us to create a product that works in the correct elasticity field, guaranteeing hors catégory performance specifications and a superior ride feel.

Tech Specs

• Tyre type: 2-Way Fit™ (tube & tubeless)
• Rim diameter: 28"
• Discipline: Road
• Category: ASTM 2
• Real weight: 657 g (front); 816 g (rear)
• Rim material: Full Carbon (FF100)
• Rim material details: Direct Inmold Matt Finish (DIMF)
• Profile height: Medium/High
• Rim height: Front: 42 mm - Rear: 57 mm
• Rim width: 29.3 mm
• Internal channel width: 23 mm
• Tyre width: 25 mm to 65 mm
• Braking system: Disc Brake
• Braking system options: AFS™
• Front axle compatibility: HH12-100
• Rear axle compatibility: HH12-142
• Front wheel spokes: 24
• Rear wheel spokes: 24
• Spoke material: Stainless steel - Double butted
• Spoke profile: Aero, straight head
• Nipples: Aluminium, Self-locking
• Front hub: Aluminium, low flanges
• Rear hub: Aluminium, low flanges
• Bearings: USB™ ceramic, adj. cup & cone bearing system
• Other: Real Axle Technology
• Weight limit (system): 120 kg
• Freewheel versions: Shimano
• Included: wheel bag, tubeless valves, tyre levers

Technologies

2-Way Fit™
2-Way Fit™ profile for tubeless and clincher. Tubeless technology was first used by the auto industry , then by motorcycles and now has reached the cycling industry. After its debut with mountain bikes the moment has come to “put it on the road”, and that’s what they propose to do. They have developed the 2-Way Fit™ technology to ensure the perfect compatibility of the tubeless rims with normal clincher types and tubes. 2-Way Fit™road bike wheels are perfectly multipurpose for tackling every situation. Thanks to a special impression in the valve area, the tubes are fitted with the maximum precision while keeping the tube perfectly stable inside the tyre. Housing the valve for tubeless tyres is also risk-free, with the unquestionable advantage that there are never any air infiltrations caused by non-ideal positioning when fitting.

USB™ - Ceramic Ultra Smooth Bearings™
Fulcrum® has a long-standing reputation for the extremely high performance of its hubs in terms of smoothness and reliability. In fact, all the projects are entirely developed in the R&D department and they have put obsessive care into taking care of every detail. The hubs with USB™ ceramic bearings (Ultra Smooth Bearings) further enhance the triathlon and road bike wheels’ smoothness and reduce weight and the need for maintenance.

2:1 Two-to-One™
When you push on the pedals, the rotational force on the sprocket induces a slackening of the freewheel spokes with a consequent loss of rim tension. This results in undesirable flex of the whole wheel and an unavoidable loss of energy. Fulcrum® has solved this classic cycling problem with its 2:1 Two-to-One™ Spoke Ratio patent, by doubling the spokes in the critical zones.

DRSC™ - Directionated Rim-Spoke Coupling
Exclusive rim/spoke coupling system. It allows the rim, spokes, nipples and hub to align properly with the same tensioning value in all areas.

F.I.C. Fulcrum Identification Card - 100% HANDMADE QUALITY
Right from its inception Fulcrum® has been marked by feature that continues to this day: that is to design, prototype and industrialise all the wheels characterised by the red “F”. Indeed these take shape inside of the R&D, the leading-edge department that represents the beating heart of the Italian company. Every single component of the wheel, the materials chosen and the technologies applied are the tangible result of the effort that Fulcrum® makes every day to give you maximum performance and reliability.

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.

Rim Full Carbon technology
Full carbon Fulcrum® rims are built using combinations, developed in the laboratory, of different types of fibre, including UD and the famous 90-degree 3K of models at the top of the range.
To build them they developed a special HTG (high transition grade) resin, whose glass transition point is at a higher temperature than any other fibre used in the bicycle industry. This gives incomparable performance when braking.

Undrilled Rim Bed
No holes on the bridge connector means that the rim is uniform at every point, free from critical areas subject to stress. The advantages are immediately clear: less weight, longer lasting rims, greater resistance to fatigue, the possibility of giving the spokes more tension and more stiffness which, in terms of performance, means improved responsiveness and acceleration.

Cup & Cone
The cup-and-cone bearing differs from the classic cartridge bearing because it works in perfect alignment with the forces involved, weight and thrust from the frame, as the bearings run in a race positioned directly opposing these forces.

Asymmetric rim
The asymmetry is designed to improve rim tension, balancing the forces from brakes and sprocket cassette.

Compatibility Shimano