translation.en: So, they got the frames from these big bikes, put them together with the gears from the racing bikes, got the brakes from motorcycles, and sort of mixed and matched various ingredients.
translation.zh: 于是他们就拿来那些大自行车的骨架， 赛车的挂档系统， 摩托车的刹车， 把这些部分拼在一起搭建起来。