Frame and forks 4130 Cr-Mo lightweight. Wheel size 700 x 25 c. Alloy rims. DURO tyres. Machined breaking surface and wear groove limit. Quando hubs rear, flip flop hub (fixed one side, freewheel one side). Head set, handlebar, stem, brake calipers, seat post clamp and seat post Promax alloy. 55 cm frame. Suitable for inside leg 28 - 32 inch.