Fulcrum Racing 4 wheelset

The aerodynamic Fulcrum Racing 4 wheels with 24.2 mm wide rims and the tried-and-tested Fulcrum hubs with classic tapered bearings

Fulcrum Racing 4 hubs:

The hubs with the new freehub body are designed entirely as oversize hubs and feature an enlarged flange on the freehub body side, as well as high-quality sealed industrial bearings. The monoblock freehub body combines the freehub body and pawl carrier into a single component, resulting in significant weight savings. The adjustable ball bearing system made from high-quality steel reduces friction and ensures long-lasting, consistent top performance. Simple and quick adjustment. Aluminium axles reduce the weight of the wheel. The hub’s exclusive 5-axis machining system enables the creation of a spoke seat that is perfectly aligned with the tension line. Thanks to this solution, the same tension values are maintained at every point along the spoke, reducing stress on the rim and spokes.

Fulcrum Racing 4 spokes:

The number of aero spokes, now with a straight head and a tapered 2-1.6-2 cross-section, has been reduced to 16 on the front wheel and 21 on the rear wheel. The front wheel is radially laced. For the rear wheel, the patented Fulcrum 2:1 Two-to-One Spoke Ratio lacing system is used.

Fulcrum Racing 4 rims

The 24.2 mm wide rim with a 17 mm rim depth features a medium-high profile of 35 mm with reinforced eyelets for the spokes. The machined brake flanges improve braking performance. The new 35 mm high rim with a width of 24 mm has been developed to offer the best rolling resistance and aerodynamics. The 35 mm profile increases torsional and lateral stiffness compared to a conventional profile, thereby providing greater stability at high speeds.

Fulcrum Racing4 wheel technology:

• Intended use: Competition, training, cyclocross
• ETRTO 622x17
• Aluminium clincher rims for rim brakes
• Number of spokes: FR 16, RR 21
• Mounting width: Front 100 mm, Rear 130 mm
• Tyre size: 28 inches, 25–40 mm width
• Campa ED cassette body compatible with Campagnolo 8, 9, 10, 11 and 12-speed cassettes
• Recommended maximum rider weight: 109 kg
• Weight: Set approx. 1,725 grams

Herstellerinformation: Fulcrum, Via dell’Economia 103, 36100 Vicenza, Italy, https://www.fulcrumwheels.com