Ultra light and versatile aluminum wheels, with a perfect balance between weight and durability. Thanks to an extremely stiff DYNAM aluminum and a larger rim width we achieve incredible rigidity and lightness. Together with the new NITRO hub with a larger diameter, with CERAMIC bearings for maximum precision and minimum friction, the Sapim CX-Ray Straight Pull spokes offer this wheel superior lateral stiffness that transforms all your efforts into speed. Tires: Made of Super Alloy DYNAM aerospace grade aluminum. Asymmetric rim design. Extra reinforcement in the eyelets. It stands out for its enormous robustness with minimal weight. Graphics with decor transfers on matt lacquer. M3 Reflective logo O. ERD: 599.8mm Outer Width: 34.2mm Inner Width: 30mm BUSHINGS: Nitro MTB Aluminum 7075 machined PAL-Tech and ceramic bearings of maximum precision. IS6 disc mount. spokes: SAPIM Aero CX-RAY Straight Pull D28/TR28 with 14mm aluminum nipples and threadlocker. hand centered Built-in axes: Boost: 15x110 / 12X148 WEIGHT: 1650g Limitations: Recommended maximum cyclist weight: 110 kgs Recommended tire size: 2.20" to 2.40"