Mavic XM 819

The XM 819 rim is a new rim in Mavic's "cross-mountain" family. Replaces the X3.1 rim in Mavic's lineup. They're designed for heavier duty use than a pure cross-country rim, yet still offer lightweight performance that won't weigh you down. The XM 819 Disc is compatible with UST tubeless tires, so you can enjoy the benefits of UST, including lower tire pressure, better traction, and no pinch flats.
The disc-specific design has several benefits, most noticeably more metal can be used to specifically address the forces exerted by disc brakes (since no braking surface is needed). Only one rim wall is drilled (Mavic's Fore technology) so the finished wheel is far stiffer and stronger.
Please note that this is a disc-specific rim, and rim brakes cannot be used.
Weight: 465 grams Material: Maxtal aluminum Drilling: 32 hole, presta valve

Cross Country and Cross Mountain UST Tubeless rim. Tire and wheel design that offers better performance by eliminating the use of rim tape and tube. This benefits the rider by optimizing grip and efficiency by regulating the tire pressure according to the type of terrain, with less risk of flats even at low tire pressure. • Greater efficiency due to absence of heat and friction between tube/rim tape/tire.
• No flat tires due to pinched tubes, torn valve stems or rim tape problems.
• Very slow deflation rate if punctured.
• Also employs FORE technology that consists of "piercing" only one rim wall with no loss of material and then tapping the resultant alloy tunnel.
• This is beneficial because there are no holes in the rim's upper bridge which yields strength and stiffness.
• Also there is less weight with fewer spokes, no eyelets or rim tape.

- Cross Country and Cross Mountain UST Tubeless rim. For disc brakes only
- Technology : UST Tubeless, Fore, SUP, Maxtal
- Recommended tires: UST Tubeless
- Does not require rim tape
- Black 32-Hole