Mavic xm819 disc mtb rimthe light and high tech all mountain ust rim the highest level of technology ever seen in a single rim ism ust fore maxtal this 19mm asymmetrical rim is the perfect partner for riders looking for light and versatile rims features 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 arc welded the welded seam is then milled for a s