The reference UST Tubeless disc rim. XM 819 Disc is the only true UST rim available on the market. Stiff and durable, yet light, topped with the added benefit of riding tubeless.
Aluminium threaded eyelets (supplied with the rim)
ETRTO compatible size: 559 x 19
Recommended tire widths: 1.50 to 2.30
Valve hole diameter: 6.5 mm
Recommended nipple length: 16 mm
Do not use any rim tape
Maxtal: Exclusive to Mavic. An aluminium alloy that is 30% more resistant than a 6106 alloy, for lighter and stronger rims.
Fore: Only one of the 2 rim wall is "drilled" - the rim is 4 times more resistant to fatigue stress - 20% increase in the rim rigidity to transfer all of your energy to the ground.
UST: Universal Standard for Tubeless. A better grip for tighter control. No more tube, no more rim tape: sounds too good to be true. The UST concept eliminates heat, friction and guarantees a slow deflating rate if punctured.
SUP: Soudé Usiné Process. After bending, the rim joint is arc welded. The welded seam is then milled for a smooth finish. A welded and milled rim joint is extremely strong, eliminates shuddering when braking, and offers superior wheel balance.
Buy Mavic 2012 XM819 Rim UST at Chain Reaction Cycles, the world's largest online cycling store.