Features:1) Convert a standard bicycle to e-bike power in minutes2) 36V 350W model shown in picture 3) Other models also available: 24V 250W and 48V 600W 4) New product coming: dual wheel motors, front and back, 24V and 48V allowsdual or single motor selective power when needed 5) High quality > 90 day factory warranty 6) Designed in the USA and manufactured in China7) Quality audited by an American engineer who will inspect what you expected8) Sold to qualified wholesale distributors only, direct from China factory; for pricing quotations please send your company profile and E-mail address with your first inquiry.9) Min. order 96 kits, mix or match models 10) See our web site home page for more details producing area:China payment:T/T