With a wider rim and a 650B diameter, this high-end rim will help you tackle the roughest roads, gravel or dirt. This high-end 650B rim is the quintessence of Mavic's know-how in rim design. It features their most iconic and proven technologies, including, ISM4D and UST. The rim bed shape makes it easy to mount any tyres, tubeless and tubetype. Its 22mm internal width is perfect for adventurous riders willing to use tyres up to 64mm / 2.5 and is also compatible with tyres as narrow as 28mm.**Features****Maxtal aluminium alloy**Light and strong and exclusive to Mavic. This specific aluminium alloy offers a higher strength to weight ratio than conventional 6106 alloy**ISM 4D light rim**Inter Spoke Milling 4 Dimensions. An exclusive Mavic patented concept, reducing weight and inertia without compromising durability. Faster acceleration, better handling and more resistance. The perfect mix to make the most of any ride. **SUP welding**Strong and smoother. After bending the rim joint is arc welded. The welded seam is then milled for a smooth finish**UST Tubeless technology**Traction and control. The UST concept improves traction, control and comfort while reducing inertia and flats**Specifications*** Material: Maxtal* Braking: Disc* Profile: Asymmetrical and hookless* Joint: SUP welding technology * Drilling: Traditional with eyelet* Height: 20mm* Internal width: 25mm* ETRTO: 584x25TSS* Tyre: UST Tubeless Ready* Valve hole diameter: 6.5mm* Tuveless tape width: 28mm (Not included)* Recommended tyre width: 28 to 64mm* Weight: 460g