Aksium 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 wheelset.This Aksium Disc model includes special features aimed at the unique demands of disc brake road bikes. It uses straight-pull spokes for added stiffness and strength and we also increased the spoke count to 24 on both front and rear wheels.With a 17mm internal width these rims are compatible with tires up to 32mm making them versatile comfortable and ideal for challenging road conditions. The disc-specific hubs feature super strong QRM bearings that provide low friction and long-term durability.The Aksium Disc is made for standard quick release and is compatible Center Lock brake rotors. Key benefits Powerful reliable disc brakes for added confidence and control. 24 spokes front and rear for optimized brake torque distribution. Disc-brake optimized rim profile. Disc-friendly spoke geometry and lacing pattern. Smooth efficient ride quality. Wider 17mm inner width rims allow tires up to 32mm. High quality QRM cartridge bearings. Straight pull round spokes are stronger than J-bend options. Spokes Shape: straight pull round Count: 24 front and rear Lacing: front and rear crossed 2 Material: steel Nipples: steel ABS Rims Tire: clincher Material: S6000 Aluminum Joint: pinned Valve hole diameter: 65 mm Disc brake specific profile Internal width: 17 mm Height: 21 mm Drilling: traditional ETRTO size: 622x17C Delivered with User guide Rim tape Front QR adapters Rear QR adapters for Instant Drive 360 Hubs Axle material: aluminum Front and rear bodies: aluminum Instant Drive 360 freewheel technology Rear: Quick Release 12x142 and 12x135 compatible QRM Auto bearing preload technology Front: Quick release and 12x100 through axle compatible Intended use Recommended tire sizes: 25 to 32 mm ASTM CATEGORY 2 : road and offroad with jumps less than 15cm For a longer longevity of the wheel Mavic recommends that the total weight supported by the wheels doesn't exceed 120kg bike included Max Pressure: see indication on wheel and tire If they differ use the lowest of the 2 Minimum and maximum allowed tyre width: see indication on wheel Maximum tyre pressure: 75bar/108PSI with a 23mm tyre - 46bar/67PSI with a 52mm tyre Compatibility Freewheel: Shimano/Sram convertible to Campagnolo ED11 N3W and XD-R with optional driver bodies Rear axle: 12mm thru axle convertible to Quick Release with included adapters Front axle: 12x100 thru axle easily convertible to quick release with included adapters Not compatible with 15mm through axles Versions Color: Black only Disc standard : 6 Bolts or Center Lock® Compatible Adapters and freewheel bodies 12 to 9mm front adapter for quick release V2680301 12mm front hub cap V2680501 - Delivered with the wheel 12x142 rear axle adapters V2510701 - Delivered with the wheel 12 to 9mm rear adapter for quick release V2510801 - Delivered with the wheel 12x135 rear axle adapters V2510901 with axle V2373401 ID360 Shimano / Sram Light freewheel body V3850101 ID360 Campagnolo freewheel body V3440101 ID360 XD-R freewheel body V2580101 ID360 Shimano / Sram freewheel body V3430101 ID360 N3W freewheel body V4270101 Information on specified weight The weight of the wheels is announced at +/-5% in XD/XD-R and Center Lock version without quick release nor valve nor rim tape