Few months before the folding bicycle appeared in the market and many people like me were thinking that the bike with dual system like electric or paddle also an option and Brian Mcallister designed this dual system bike. This bicycle has function of electric force running and with paddles so in San Francisco where the hills roll on we can use it easily. It can give you both muscle and electric power to get you to your destination and during it when you feel can change into electric mode and enjoy with your surrounding, it is covered properly and you will never get oil on your legs or clothes again when cycling, Brian Mcallister provided this innovative and individual design for getting every opportunity.