U / Bicycle frame

"U" is to improve the design of a bicycle frame, we change theoriginal
cylindrical steel into awide flat,The name is derived from the U word shapefrom the side,Also on behalf of the English word "you",It is made of
aluminum alloy, and it is durable and safe. The user can make the pass
enger in his arms, so he can enjoy the sweet, warm, and the feeling of being protected. It is fit for younglovers and parents to ferry their children.