Detailed product description specifications: \r\n\r\n1) folded dimensions: 67 x 30 x 16cm \r\n\r\n2) unfolded dimensions: 100 x 70 x 43cm \r\n\r\n3) weight: 5.6kg / 12.6lbs \r\n\r\n4) dual chain ratio: 14:8 and 35:9 \r\n\r\n5) max. weight tolerance: 85kg / 5lbs \r\n\r\n6) max. braking force: complies with bs1602 part 1: 1992 \r\n\r\n7) polymer composite: 30% gf pa66 \r\n\r\n8) aluminum: heat treated 6061t6 \r\n\r\n9) tire size: 15cm/6 diameter x 3.2cm/1 \r\n\r\n10) tire valve type: shredder \r\n\r\n11) pneumatic tire pressure: 90psi \r\n\r\n12) max. saddle height: 90cm \r\n\r\n13) min. saddle height: 82cm.