Aksium Disc - the access to the Mavic road performance for disc brake equipped bikes. The Aksium wheel is a great choice for everyday road riding. With a smart balance of high-quality materials and durable construction, it offers aspiring road riders the clear performance benefits of a high-quality wheel . This Aksium Disc model includes special features aimed at the unique demands of disc brake road bikes. It uses 24 straight-pull spokes for added stiffness and strength. With a 17mm internal width, this rim is compatible with tires up to 32mm, making them versatile, comfortable and ideal for challenging road conditions. The disc-specific hub features super strong QRM bearings that provide low friction and long-term durability. Disc brake specific wheel design disc-brake-optimized rim profile disc-friendly spoke geometry and lacing pattern wider rim allows a broad choice of tire dimensions Access to the Mavic quality high quality cartridge bearings: QRM rim strength: pin joint rim, disc specific round straight pull spokes which are stronger than J-bend options Instant Drive 360 freehub Technologies: QRM (Qualit de Roulements Mavic) - Mavic only uses high quality sealed cartridge bearings. On QRM wheels, they feature double sealing (2RS or LLU) together with tight C3 internal clearance. Maintenance/care: Clean with a dry cloth or soap and water. Do not use pressurized water. SPECIFICATION Material: Aluminium Usage bikesport: Road Bike Hubs: Hub with Instant Drive 360 freehub Spokes: straight pull, round Shifting system: 9-speed, 10-speed, 11-speed Wheel size: 28" (622mm) Axle standard: Quick Release, 12x142mm (RW) Wheel version: Rear Wheel, Rear Wheel > 900g Freehub Body: HG L (Shimano 11/12s Road) Braking system: Centerlock/AFS Tire type: Wire Bead Tire Air pressure: 8.7bar Fitting tire dimensions: 25-32mm ETRTO: 17-622 Rim width: 23mm Inner profile width: 17mm Rim profile height: 21mm Weight limit: 120kg Nipples: brass, self-locking Freehub system: Instant Drive 360 freehub Model year: 2024 Collection: Full year Color: Black Weight: 1035g Manufacturer item code: R2317155 Number of Spoke Holes: 24 Freewheel System: Ratchet.