RX880 gravel tuned 12-speed 700c tubeless wheelset offering all the technology of Shimano wheels balancing the best combination of rim weight and strength to deliver an exceptional gravel wheelset 32 mm high profile full carbon rim for improved aero dynamics and durability 25 mm internal rim width to accommodate a wider section tyre from 32-50mm Easy to use Center Lock rotor mount for use with disc brakes 24 stainless steel butted and bladed straight pull spokes with a 2-cross lacing pattern improve lateral and torsional power transmission rigidity Elbow-less spokes with alloy nipples make for a strong yet compliant wheel The hub uses angular contact bearings designed to cradle the balls giving both radial and lateral support for superior strength and durability in real world riding conditions. They also offer precision bearing adjustment and easy maintenance Free hub utilising a pawl ratchet engagement for precise pick up Labyrinth and contact sealing - low-friction seals effectively shut out water mud and dirt without affecting rotational smoothness E-thru axle rear 142 mm Product Type Rear Wheels Discipline Gravel and Cyclocross Colour Black Size 700c Axle Type Bolt Thru 12mm Brake Type Center Lock Freehub Shimano Micro Spline Hub Width 142mm Rim Depth 25 - 35mm Rim Type Carbon Clincher Rim Width 23 - 25 mm Wheel Diameter 700c