Biceps Curl / Triceps Extension (OP-BT) Machine Weight: 463 lbs. 210 kg. Size (L x W x H): in. = 49 x 43 x 53 cm = 124 x 109 x 135 Live Area (L x W x H): in. = 73 x 55 x 77 cm = 185 x 140 x 196 Max User Weight: 300 lbs. 136 kg. Weight Stack: 172.5 lbs. 85.25 kg. Note: Weight Stack weight includes increment weight (7.5 lbs / 3.75 kg). Parent topic: Dual Stations