Frame YOELEO R12 Aero Frame Material: Carbon Fiber T800 Axle Dimension: 12 x 142 mm Brake Mount: Flat Mount Weight: 1230g(54cm) Fork YOELEO R12 Fork Material: Carbon Steerer: 1-1/2” Axle Dimension: 12 x 100 mm Brake Mount: Flat Mount Weight: 390g Handlebar YOELEO H9 Handlebar Handlebar Width: 380mm/400mm/420mm/440mm Handelbar Stem: 90mm/100mm/110mm/120mm Weight:325+/-15gram Groupset Shifter Shimano Ultegra R8020, 11-Speed Front Derailleur Shimano Ultegra R8000, braze-on Rear Derailleur Shimano Ultegra R8000 Crank Shimano Ultegra R8000 Cassette Shimano Ultegra R8000, 11 speed Chain Shimano Ultegra HG701, 11-speed Brake Shimano Ultegra hydraulic disc, flat mount Rotor Front 160mm/Rear 140mm Wheelset YOELEO SAT C50|50 DB STD Thru Axle: 12*100/12*142 Tires Continental GrandSport Race 700*28C