1) 6-speed friction freewheel 2) Standard: 14-16-18-20-24-28T 3) Finish: black, brown, CP 4) Material: steel Inner packing: 1pc/polybag (color box optional) Outer packing: 50pcs/ctn Carton dimensions: 43 x 24 x 24cm N.W.: 23.5kg G.W.: 24.5kg