1. Reinforced Steel frame, front bell , any color available 2. Tyre :fron,20"X2.4 rear 24"X2.4, aluminum rims  3. Brake systerm :front; V-brake, rear; Twin hydraulic disc brake  4. Cover:  5. Transmission: chain(KMC Brand)  6. Speed: Single speed 7/8 (Shimano Brand)  Derailleur: 21/24 speed(Shimano Brand)  7. Climb Capacity:15-20 degree 8. With reflectors ELECTRIC ASSISTED (optional) 1. Front Horn 2. Power: 500W, Wheel Motor, Brushless 3. Battery: 4pcs 48V/20Ah 4. Rear light, running light, brake light, turning light SEAT CAPACITY: 3 people SIZE: 3100mm*1100mm*1700mm AXLE BASE: 1850mm WHEEL SPACE: 1000mm GROSS WEIGHT: 390kg MAX-SPEED: 25km/h-45km/h MIN-TURN DIA: 3m MAX-GRADIENT: 25% MAX-TOTAL MASS: 750kg MAX-DISTANCE: 20km-100km (Depending on road conditions) Cabin: fiber glass