Mavic xm719 disc mtb rimthe tube type rim for a high end built up all mountain wheelset wide enough to allow the use of large volume tyres but reasonably light xm 719 disc answers all of the epic mountain bikers needs sup welding offers lightweight and reliability features material 6106 aluminium alloy maxtal exclusive to mavic this specific aluminium alloy offers a higher strength to weight ratio than conventional 6106 alloy sup soud usin process after bending the rim joint is ar