Technical Specfications: Unit Weight: 5.6 KGS/ 12.6LBS Maximum speed: 25km/hour Tyre size: 15cm/6 diameter x 3.2cm/1 Saddle height: 82--90cm (adjustable) Transmission: two-stage chain Dual chain ratio: 14:8 and 35:9 Max. braking force: complies with BS1602 part 1:1992 Pneumatic tire pressure: 90PSI Aluminum frame: heat treated 6061T6 Polymer composite: 30% GF PA66 User weight capability: 100kg Folded dimensions: L67 x W30 x H16cm Assembly size: 100 x 70 x 43cm Conveyance: Box Dimension: 315 x 185 x 690cm N.W./G.W.: 5.6kg/7.5kg Container Load Quantity: 672sets/ 20'FCL 1438sets/ 40'FCL 1632 sets/ 40'HQ My Email: evertopjustin rat yahoo.com.cn Cell phone : +86 13519134304