... power on bicycles, motorcycles, machinery. ANSI B29-1 roller chain standard sizesSizePitchRoller diameterTensile strengthWorking load250.250 (6.35 ... 3,100 kg)1401.750 in (44.45 mm)1.000 in (25.40 mm)38,280 lb ( ... 4,100 kg)1602.000 in (50.80 mm)1.125 in (28.58 mm)50,000 lb ( ... 5,400 kg)1802.250 in (57.15 mm)1.460 in (37.08 mm)63,300 lb ( ... 7,300 kg)2403.000 in (76.20 mm)1.875 in (47.63 mm)112,500 lb ( ...