Mavic open pro clincher road rimthe reference rim for high performance wheel building open pro is the latest version of mavic open rims and as such is the most advanced evolution optimized up to the limit of material potential open pro is probably the best road rim available 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