folding bike The following is our description: Handle bar swallow type, ... F/R axles front axle-115mm, rear axle-165m, double wire UCP Saddle ED, with nail, leather, foam pad black Saddle ... tube Iron- 25*18mm, thickness-1.0mm, with safe wire CP Chain wheel&cranks B.B. Axles-89*28T, standard ... .9mm Brake level laser, 3-set tube, 19 pieces of wire Black-white Brake iron, paint Silver-grey