Fulcrum | Cicli Corsa

Fulcrum Speed 25 Wheels

The new Fulcrum Speed 25 wheels combine lightness and manoeuvrability in a low profile product that is perfect for conquering the summit and enjoying the descent thanks to the application of the best Fulcrum technologies.

Speed 25 have been developed taking inspiration from the victorious Racing Light XLR, wheels that have made their mark both among end users and the pros who have used them for mountain stages. Speed 25 feature a 26 mm profile, symmetrical at the front and asymmetrical at the rear to optimise the balance between lightness and aerodynamics.

With an official weight of only 1,285 g, they are the product for the cyclist looking for his best time on the climbs, but also for the ultra-cyclist who faces adverse weather conditions and wants a stable and reliable wheel even in the presence of any strong gusts of wind.

Speed 25 are developed in the tubeless disc-brake version, with a 21mm internal channel and adopt Fulcrum's proprietary MoMag™ and DIMF technologies, as well as USB™ ceramic bearings and a hub with a minimalist design: lightness, handling and smoothness are the key aspects that explain their performance.

THE MAIN FEATURE OF SPEED 25

The result of a pair of wheels weighing only 1285g is achieved thanks to several factors, first and foremost the 26mm profile.

CARBON FINISH

In addition, the rim has a DIMF matt finish obtained directly from the mould without any paint treatments, which would obviously have a negative effect on the total weight: a result made possible by the specific resins used, which also protect the rim.

HUB DESIGN

Also contributing significantly to the weight reduction is the design of the minimalist hub, which has been lightened and optimised in its inner and outer sections to make it as aerodynamic as possible, but also reliable, resistant and capable of supporting significant torsional forces.

DIFFERENTIATED PROFILE

The most important feature is the difference between the front, symmetrical, and rear, asymmetrical, to guarantee excellent aerodynamics and extreme reactivity. With an asymmetrical rear profile it is in fact possible to guarantee better camber angles for high lateral rigidity, which is essential in uphill sprints.

SPOKE SHAPE

With the same objective in mind, Speed 25 is built with flat aerodynamic spokes which, following Fulcrum's design philosophy of perfect alignment of the nipple to the spoke, do not touch. There are several advantages to this approach, made possible thanks to the precision of Fulcrum technologies: durability, resistance, and rigidity that remain constant over time, but also the total absence of creaking due to rubbing of the spokes.

BEARINGS

USB™ ceramic bearings guarantee 50% more smoothness than standard bearings.

HUB STRUCTURE

The Fulcrum construction technique based on unique CNC-made through axles, which form a rigid and solid base on which all the internal mechanisms slide, guarantees maximum smoothness and rigidity.

TUBELESS READY

2-Way Fit makes it possible to fit smoother tubeless tyres without the use of belts, thanks to the non-drilled bridge.