Fulcrum Racing Zero Tubular Wheelset

The rims are made of extremely high precision aluminium extrusions that make it possible to eliminate all the excess material, so they are ultra-light but at the same time very strong. The front and rear wheel profiles are differentiated: the 26 mm height for the front guarantees excellent aerodynamic penetration, while the 30 mm of the rear wheel means extremely effective transmission of your pedalling power.

Both rims feature the special Fulcrum lightening between the anchoring points of the spokes and the patented Dynamic BalanceTM system that guarantees the maximum stability of your bike even at high speeds.

The hubs have a carbon fibre body and aluminium flange; the special bearings combined with a larger number of balls compared to the standard version place the Zero at the top in terms of smoothness and service life. But we wanted more, so we decided to substitute the high quality steel ball bearings with the ceramic USB (Ultra Smooth Bearing) specially developed by Fulcrum®. This solution significantly increases the smoothness of the wheels, reduces servicing needs, and further decreases the weight.

The spokes are aluminium aero spokes arranged in a radial pattern on the front wheel for better aerodynamic penetration and in the Fulcrum® 2:1 pattern on the rear wheel for immediate transmission of pedal stroke with no dissipation of energy. The nipples are also aluminium, further reducing the peripheral mass of the wheels and thereby increasing their performance.

Racing Zero wheels are compatible with Campagnolo®, Shimano Inc. and Sram Co. drivetrains and are supplied with the new Fulcrum® quick releases.

Dynamic Balance™: Unlike carbon rims, all the aluminium rims are joined. The joint, though indispensable, entails a concentration of material in a single point and creates an annoying "jump" effect at speed. Fulcrum® has eliminated this annoying problem with the Dynamic Balance™ patent.

The concept is simple and elegant: balance the mass of the joint with a mass of the same weight. For top models, this is obtained by a special operation on the section of the rim opposite the rim joint. For entry-level models, Dynamic Balance™ is obtained by using two oversized spokes in the section opposite the joint. The result is a wheel with perfectly balanced rotational dynamics.