EMB-Rocket has dynamic design with high-grade painting. The all-in-one integrated blade wheel design adds a sense of technology to the E Bike, and the high-power drive enables the electric mountain bike to perform well on both flat and rough roads. 1.Lithium-ion battery, up to 24 speed modes: Adds momentum to the journey, and doesn't get tired while climbing. 2.26 inch Aluminum Lithium Mountain Bicycle Frame: lightweight, impact-resistant and rust-proof. 3.One Integrated Blade Wheel Design: no welding point, stable performance to help you drive at high speed.