It’s common knowledge that Fulcrum is an outpost of the Campagnolo empire and the Fulcrum Racing Zero 2-Way Fit uses internal rim profile as the Campagnolo Shamal Ultra 2-Way Fit also tested here.
Without wishing to cover the same ground, I too found the rim design was superb for trouble-free tubeless tyre installation — the best I’ve tried, with no leakage and no need for the frantic pumping antics that I’ve regularly found to be the case with others. A big plus.
The combination of carbon hubs, red anodised bladed spokes, and black rims is very attractive and helps you tell them apart from the standard Racing Zeros, that are all red. Weight is not bad either at 625g for the front and 800g for the rear.
The performance is outstanding, if you like your wheels super-stiff. It’s instantly noticeable, even having swapped from a pair of deep sections. Acceleration is immediate — firm and direct with hardly any appreciable flex. This makes for a lively, slightly harsh feel, but that’s one of the benefits of tubeless, you can dampen that down a little by running slightly less pressure, without losing efficiency.
As an alternative, Fulcrum also offers its Racing 1s with 2-Way Fit, priced at £739, if Zeros are a financial step too far. The only real penalty is a small amount of extra weight without the carbon hubs, and there’s slightly less material milled out of the rims
The Fulcrum Racing Zero 2-Way Fit offers outstanding performance if you like super-stiff wheels, and tubeless tyre installation with Campagnolo/Fulcrum’s 2-Way Fit is delightfully straightforward.