A Bike (Folding Bike) Specifications: 1) Frame material: heat treated aluminum, and high strength glass fiber reinforced engineering polymer constitute the majority of the frame 2) Fold mechanism: in under 10 seconds with a 3 click telescopic mechanism 3) Easy to ride: the use of a dynamically geared twin chain system enables users to pedal normally and retain their balance. The high performance 90PSI pneumatic tires allow for a smooth and comfortable ride on most hard surfaces. The size of the wheels is of course a key factor in making the bike so light weight and compact 4) Easy to fold and unfold: designed to be folded and unfolded within 10 seconds 5) Different: uniquely styled mini bike feels much like a normal bike to ride. However, unlike other folding bikes it can easily be slipped into a bag while you hop on the tube, train, bus, or even a plane Features: 1) Folded size: 67cm x 30cm x 16cm 2) Unfolded size: 100cm x 70cm x 43cm 3) Weight: 5.6kg / 12.6lbs 4) Dual chain ratio: 14:8 and 35:9 5) Max. weight tolerance: 85kg / 135lbs 6) Max. braking force: complies with BS1602 part 1:1992 7) Polymer composite: 30% GF PA66 8) Aluminum: heat treated 6061T6 9) Tire size: 15cm/6 diameter x 3.2cm/1 10) Tire valve type: shredder 11) Pneumatic tire pressure: 90psi 12) Max. saddle height: 90cm 13) Min. saddle height: 82cm Packing: Conveyance: Qty/20' GP: 683pcs Qty/40' GP: 1,365pcs Qty/40' HQ: 1,658pcs