650B

Wheels featuring the Duroc 37 Super-Duty, a double wall rim with 2.7mm thick bead hooks Constructed of 6061 Series alloy with a welded seam SRX Cartridge bearing straight pull hubs with a 3 pawl alloy cassette body and 24 tooth ratchet ring, yielding 72 engagement points Laced up with time tested double butted Wheelsmith spokes Includes tubeless tape, valve and 2oz bottle of STR sealant Rear wheel includes XD and Shimano Micro Spline driver bodies