The mavic crossmax sl pro ltd 29er wheelset features the brand new crossmax pulse tyres and utilise mavic39s exclusive technologies for improved performance all round if you39re a serious xc racer looking for a new set of wheels these are a fast lightweight option which roll well in all conditions using mavic39s ism 4d technology the rims have been strategically machined by removing excess material this reduces the weight and inertia without compromising any of the wheel39s st