This brand new racing 5 has been brought in for 2015 with one purposes in mind they have been designed with a slightly wider rim to facilitate an easier fitting of 25c tyres this cx version has a double seal in the hub to keep the wheels from getting dirt and dust inside during cyclo cross racing and during winter training racing 5 are designed for everyday use and training an optimum proposal from fulcrum which guarantees excellent quality oversized hubs with flanges for blade hammer h