Racing 5 lg disc brake 6 bolt wheelset a disc brake compatible version of the fulcrum racing 5 lg wheel this new racing 5 has been brought in for 2016 with the wider rim as on the standard 5 lg and of course now disc specific they have been designed with a slightly wider rim to facilitate an easier fitting of 25c tyres this means the rider can benefit from better comfort better grip and slower tyre wear racing 5 are designed for everyday use and training an optimum proposal from fulcrum wh