54cm Raleigh aluminum cx frame and fork SSCXWC 2015 special edition frame Belt drive compatible, includes single speed dropouts Fork 15mm x 110mm, axle, carbon legs, alloy steerer Post mount disc brake 12x142mm rear spacing Shimano 11 speed drive train 685 hydraulic brakes, ultegra crank Shimano 105 derailers Very low mileage on drivetrain Hand-built wheels, mtb rims, Sram hubs Tubeless compatible Michelin cx tires Shimano SPD pedals Shimano Pro handlebar Thomson seat post Specialized Lithia saddle