... power on bicycles, motorcycles, machinery. ANSI B29-1 roller chain standard sizesSizePitchRoller diameterTensile strengthWorking load250.250 (6. ... in (9.52 mm)0.200 in (5.08 mm)1,758 lb (797 kg)480 lb (220 kg ... kg)1802.250 in (57.15 mm)1.460 in (37.08 mm)63,300 lb (28,700 ... kg)13,700 lb (6,200 kg)2002.500 in (63.50 mm)1 ... 7,300 kg)2403.000 in (76.20 mm)1.875 in (47.63 mm)112,500 lb ...