Mavic a319 road rimmavics mid level all road rim featuring high quality 6106 alloy and double eyelets this 25mm wide rim is perfectly adapted to todays trekkers and tourers it is strong durable and allows the use of tyres up to 50mm features material 6106 aluminium alloy pinned traditional drilling ub control double eyelet clincher external wear indicator etrto size 29 622 x 19 recommended tyre widths 28 to 47mm valve hole diameter 85mm supplied with valve adapter recommended nippl