Specifications Model: Topstone 2 C15702U Model number: C15702U Color: olive green Frame: Lightweight SmartForm C2 Alloy Fork: Topstone Carbon Headset: Integrated Shock: – E-System Motor: – Battery: – Charger: – Display: – Drive Rear derailleur / Chain changer: Shimano GRX 400 2x10Gg Front derailleur: Shimano GRX 400 Shifters: Shimano GRX 400 Chain: KMC X10 Crank: FSA Omega AGX+ Alloy, 46/30 Bottom bracket: FSA Cartridge Cassette: Shimano HG500 11-34T Brakes Brakes: Shimano GRX 400 160/160mm Brake levers: Shimano GRX 400 Wheels Rims: WTB ST i23 TCS, 28h Spokes: Stainless Steel Hubs: Formula Tires: WTB Riddler, 700x37c (Europe/UK – Vittoria Terreno Dry, 700x37c) Components Handlebar: Cannondale 3 Stem: Cannondale 3 Grips: Cannondale Bar Tape, 3.5mm Saddle: Fizik Aliante Delta Seat post: Cannondale 3