The mavic crossmax slr disc 650b wheel benefits from years of dedicated rampd and world cup racers39 feedback so you have a superior wheel which utilises mavic39s key technologies to give you the most dynamic ride ever the rim has been constructed from a maxtal aluminium alloy for an exceptional strength to weight ratio the rim has an extremely strong joint which has been arc welded to eliminate shuddering when breaking and provides you with superior wheel balance the wheel has a ust