Racing 4 promises a lot and gives even more: a wheel to put to the test. Racing 4 is the typical trump card in the hand because it is able to give that little bit extra, no matter what the terrain in front of it looks like.
Its light medium-high rim profile makes it a continuous discovery with an enviable approach and eyes focused on performance. The similarity with the higher class models that run on the champions’ bikes is no coincidence: the R+D department has used its experience in designing such extreme rims to create a package for other needs that does nothing to hide the outstanding pedigree from which they originate.
The 35 mm profile was and is a successful premonition; because it can show a successful balance between aesthetics and performance. Their medium-high rim profile makes a difference on the flat when riding at cruising speed, without penalising on the climbs, where it remains lively and agile during re-accelerations.
RDB Rim Dynamic Balance
The concept is simple and ingenious: balance the mass of the rim joint with a mass of equal value positioned exactly opposite.
Anti-Rotation System
This new system takes the concept of the lacing system to a new level of performance.
Fulcrum’s technicians have redesigned the spokes and the hub shells to create a solid and solid unit.
In this way, the spokes
a) they never lose their initial tension, keeping the wheel perfectly responsive and centred, and
b) that they remain in the position developed in the wind tunnel to ensure the best possible aerodynamics.
F.I.C. Fulcrum Identification Card – 100% Handmade Quality
Fulcrum, since its creation, has been characterised by an approach that continues to this day: Design, prototyping and industrialisation of all wheels with the red “F”.
Every single wheel component, the materials selected and the technologies used are the tangible result of the efforts Fulcrum makes every day to offer you the highest performance and reliability.
Wide Rim Tech
The Fulcrum R&D department, following the wishes of the racing teams, worked to create rims with a greater width in relation to the past, starting from about 4 mm more than the previous ones.
This technical choice makes it possible to offer the ideal support base for 25/28 mm tyres, the preferred sizes today. In this way, stability, optimal handling and high comfort are guaranteed.






















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