Giant P-SLR 1 Wheel System is a lightweight &40;1390g per pair&41; & stiff wheelsystem featuring a wide 21mm scandium rim for enhanced handling 6000 series hubs sealed hub bearings. Packed with features like aero bladed spokes & single handed release they are tubeless compatible with a tubeless ready tyre well. Features· Scandium rim· Forged 6000-series hubs· Front 16 aero bladed stainless steel spokes· Rear 20 aero bladed stainless steel spokes· Tubeless ready tyre well· Single handed wheel release· Sealed hub bearings· 21mm wide rim· 1390g per pair· Wheel bags included Sizes 21mm wide rim