Powerful Motor The cmacewheel Y20 Electric Step-through Bike Equipped with 48V 750W high-speed brushless motor, increases stronger hill-climbing power, provides more than enough to power your daily commute, a cruise on the mountain, or a meander along your favorite trail.(No mark 750w on Motor now),Max Speed is 25km/h (can be released to 45km/h) 20*4.0-inch Fat Tire CMACEWHEEL Y20 has 20 x 4.0'' CST wide tires. The pattern design provides good grip and stability.the tread design is deep and wide, and the drainage is good. It is very suitable for driving on snow, mountain, and rugged roads, and even hunting. Front & Rear Disc Brake Front and rear dual disc brakes, shorten the braking distance, ensure greater stability and safety.mechanical disc brakes can make braking easier and more effective. It is very convenient to use for beginners. Lockable Suspension Fork The high-strength shock absorber front fork allows you to be more relaxed and comfortable when riding, and no longer afraid of bumps. Besides, the lock switch can be manually locked or opened depending on riding conditions. The separate fork-shaped bridge design makes the outer tube of the front fork stronger and effectively prevents dust pollution during riding. Brake & Turn light Now the new version CMACEWHEEL Y20 upgraded the tail light to be a brake light and TurnLight integrated.You know, the lights are very important for an e-bike at night, It has a front LED light, as usual, Now we get more lights for it.In one word, you will love it if you want to ride it at night. Specification Brand: CMACEWHEEL Type: Electric Bike Model: Y20 Frame Material: Aluminum Alloy Charging Time: About 9 hours Battery Capacity: 18Ah Battery Voltage: 48V Charger Voltage: 100 - 240V 2A Motor: 250W Gears: 5 gears Tire: CST 20 * 4.0 inches Brake: Front & rear disc brake Gradeability: 30° Speed: 25km/h Suspension: Lockable front fork suspension Torque: 60 N.m Max Range: 70-90km Waterproof level: IP65 Product Weight: 31kg Package Weight: 39kg Product Size: 172 x 129 x 55cm Package Size: 98 x 44 x 79cm Package Contents 1 x Y20 Electric Bike 1 x Charger 1 x Front Basket 1 x Repair Tool 1 x Tail light 1 x User Manual