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Fulcrum Speed 42 DB 28" wheelset, thru axle, disc, carbon

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Evolution without compromise: new rims – higher, wider, lighter and more aerodynamic – new hubs and new spokes combine into a perfect wheel system.



Speed 42 and 57 are the culmination of a process that involved over 4000 hours of testing in the wind tunnel, laboratory and on the road. Seven rim versions were tested in multiple configurations to obtain the best performance in terms of aerodynamics, rolling resistance, lightness and handling without compromising safety.

The rim is constructed from resins and fibers manufactured to Fulcrum specifications, where, unlike previous versions, we use a new composite blend of high-modulus unidirectional FF100 fibers for the Speed 42 model. Thanks to numerous experiments, we have achieved a perfect blend of fibers which, together with their correct distribution and extremely precise resin control, allows us to create a product that works within the correct elasticity range, guaranteeing performance specifications and an excellent riding feel.

The graphics have also been completely redesigned, reflecting the new Form Function Fulcrum brand identity with a minimal yet refined design that includes new icons providing all the technical information about the product.



Tire Type: 2-Way Fit (for clincher and tubeless tires)

Tire Size: 28"

Discipline: Road

ASTM Category: 2

Weight: 1410 g

Rim Material: Full Carbon (FF100)

Rim Material Details: Direct Inmold Matt Finish (DIMF)

Profile Height: Medium

Rim Height: 42 mm

Rim Width: 29.3 mm

Internal Rim Width (Channel): 23mm

Tire Width: from 25 mm to 65 mm

Braking System: Disc Brake

Front Axle Compatibility: HH12-100

Rear Axle Compatibility: HH12-142Front Wheel Spokes: 24

Rear Wheel Spokes: 24

Spoke Material: Stainless Steel – Double Butted

Spoke Profile: Aerodynamic, Straight Pull

Nipples: Aluminum

Front Hub: Aluminum, Low Flanges

Rear Hub: Aluminum, Low Flanges

Bearings: USB Ceramic Bearings. Adjustable Cup & Cones Bearing System

Weight Limit: 120 kg (includes cyclist, bicycle, equipment, and luggage)

Year: 2025

Model Year: 2025

Product details
Material carbon fiber
Location Set
Nut SRAM XDR, Shimano HG, Campagnolo N3W
Brake disc installation Center Lock (CL)
product ID 228329
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Fulcrum is a well-established brand in the world of cycling, mainly thanks to the production of high-quality bicycle wheels. It is known for producing a range of wheels for road, mountain, and gravel bikes. The brand invests in research and development to incorporate the latest technologies and materials into its wheel designs, improving the bikes' aerodynamics, stiffness and overall performance. Fulcrum wheels are also used by professional cyclists and racing teams and have achieved success in various cycling competitions.

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