The crud roadracer mk3 mudguard incorporates a unique super fast fixing system and has been widened to accommodate tyres up to 38c weighing in at only 260 grams the pair they fit all 700c bikes including cost disc and caliper brakes crud roadracer mk3 mudguard features no tools needed fits bikes with as little as 4mm clearance fits up to 38mm tyre widths fits with disc brakes