Main Features Size: S, M, L, XL Frame: E-Teru AL Fork: SR Suntour XCM32 Boost DS 80 mm Motor: Bosch Performance Cruise Battery: Bosch Power Tube 500 Wh Transmission Gears: Shimano Alivio RD-M3100 1x9 speeds Gearbox: Shimano Altus SL-M2010 1x9 speeds Cranks and plates: Miranda 38 teeth Cassette: Shimano CS-HG 1x9 speed (11-36) Chain: KMC 9 speeds Brakes Front brake: Shimano BR-MT200 180 mm Disc Rear Brake: Shimano BR-MT200 180 mm Disc Wheels and Tyres Wheel Rims: Schürmann Craft Disc 30 Tyres: Front: Schwalbe Al Grounder 2.35, rear: Schwalbe Al Grounder 2.35 Components Handlebars: Ground Fiftyone Dia. 31.8 mm Stem: Ground Fiftyone Dia. 31.8 mm Saddle: Selle Royal 2315 HRN Seat Post: XLC 31.6 mm