Battery can be removed if locking bike. Sensors stop motor when braking or changing gears. Powerful 750 watts motor and 17.5amp battery. Color display and controller allows power settings to be selected while riding using selections 1-9.Battery is new less 100 miles charges 100%. Look up reviews of bikes with Bafang motors on you tube, you see nothing but smiles as they ride. XT derailer, RockShox fork, hydraulic brakes etc. This item is in the category "Sporting Goods\Cycling\Bicycles". The seller is "atcmia" and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, China, Sweden, Thailand, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Switzerland, Norway, Saudi Arabia, Ukraine, United Arab Emirates, Qatar, Kuwait, Bahrain, Croatia, Republic of, Malaysia, Chile, Colombia, Panama, Jamaica, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.