Let’s look at the tech of the Fulcrum Racing Zero in detail
Made from extruded aluminium to give it lightness and strength. This method allows all excess material to be removed which reduces weight. The front and rear wheel profiles are differentiated – the 26mm height for the front guarantees excellent aerodynamic penetration, while the 30mm 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 (those cut out parts between spoke holes!).
This differs from the regular Zero in being anodised black. Carbon fibre bodies decrease weight and give you a 10/10 bling factor on club rides! Inside the hubs are Fulcrum’s USB ceramic bearings which increase smoothness and reduce weight even further – 30% lighter, 40% more wear resistant and 50% smoother!
Aluminium again with an aero profile for maximum aerodynamics. The front is laced radially and the rear has Fulcrum’s 2:1 pattern which keeps it responsive and efficient.
When you push on the pedals, the rotational force on the sprocket induces a slackening of the freewheel spokes with a consequent loss of rim tension. This results in undesirable flex of the whole wheel and an unavoidable loss of energy.Fulcrum has solved this classic cycling problem with its 2:1 Two-to-One Spoke Ratio patent, by doubling the spokes in the critical zones.
Aluminium nipples further reduce weight, reduced weight here is where it’s most useful and noticeable.
Other important details – they are available in both Campagnolo and Shimano/SRAM freehub option, come supplied with Fulcrum wheel bags & skewers and weigh in at a very healthy 610/825g (claimed).
You can buy Fulcrum Wheels from us here at ProBikeKit – and if you ride and rate the wheels, let us know in the comments.