Speed is nothing without control. That's why, for the Cube Attain SL Road Bike, we selected Shimano's proven 105 hydraulic disc brakes - so you can be sure of safe stopping, whatever the weather throws your way. Combined with the slick reliability of Shimano's iconic 105 2x11 transmission and a selection of carefully curated CUBE components, it makes for a bike that offers a beguiling blend of comfort and pace. You shouldn't need to suffer for your sport. That's why the Attain's 6061 aluminium chassis is built with both comfort and performance in mind. Double butted tubes save weight wherever possible, without sacrificing strength. Smooth Welding gives tube joints a premium, almost organic appearance. The tapered steerer ensures pinpoint precision accuracy. And slender seatstays and a full carbon fork help reduce road shock and vibration for significantly improved rider comfort.  Cube Attain SL Road Bike 2021 Features FRAME Aluminium 6061 T6 Superlite, Double Butted, Smooth Welded, 3D Flat Mount Disc Brake Dropouts, Road Comfort Geometry, Fender Option, 12x142mm FORK CUBE CSL Race Disc, Full Carbon, 1 1/8 - 1 1/4 Tapered, Flat Mount, 12x100mm REAR DERAILLEUR Shimano 105 RD-R7000-DGS, 11-Speed