3 Riding Mode--electric bicycle&pedal assist(PAS)&normal bike; You can choose different modes to suit your needs; 95% Pre-assembled, it's not hard to finish assembly. Note: The paid installation service is provided by Amazon, please contact Amazon if you have any questions about it. Front and Rear V-brake can make it stop on time. Bright headlight and LED display are designed to keep you safe riding at night, you can also happiness of riding at night.This item is in the category "Sporting Goods\Cycling\Electric Bicycles". The seller is "vivihome" and is located in this country: US. This item can be shipped to United States.