

| Chain Type | No.80-2 | |
| Pitch | (P) | 25.4 mm |
| Internal width | (W) | 15.88 mm |
| Roller Dia. | (Dr) | 15.88 mm |
| Teeth width | (T) | 14.1 mm |
| (M) | 43.4 mm |
| Sprockets No. | Outside Dia.Do | Pitch Dia.Dp | Bore d | Hub | Weight(kg) | ||||
| Type | Teeth No. | Stock | min. | max. | BD | BL | |||
| NK80-2B | 10 | 93 | 82.19 | 21 | 23 | 35 | 58 | 63 | 2.0 |
| 11 | 102 | 90.16 | 21 | 23 | 38 | 60 | 63 | 2.5 | |
| 12 | 110 | 98.14 | 23 | 25 | 46 | 69 | 63 | 2.7 | |
| 13 | 118 | 106.14 | 23 | 25 | 55 | 80 | 63 | 3.4 | |
| 14 | 127 | 114.15 | 23 | 25 | 60 | 88 | 63 | 3.9 | |
| 15 | 135 | 122.17 | 23 | 25 | 63 | 95 | 63 | 4.4 | |
| 16 | 143 | 130.20 | 23 | 25 | 66 | 100 | 71 | 5.4 | |
| 17 | 151 | 138.23 | 23 | 25 | 66 | 100 | 71 | 6.0 | |
| 18 | 159 | 146.27 | 23 | 25 | 80 | 120 | 71 | 7.5 | |
| 19 | 167 | 154.32 | 23 | 25 | 80 | 120 | 71 | 8.0 | |
| 20 | 176 | 162.37 | 23 | 25 | 89 | 130 | 71 | 9.0 | |
| 21 | 184 | 170.42 | 23 | 25 | 89 | 130 | 71 | 10.3 | |
| 22 | 192 | 178.48 | 33 | 35 | 80 | 117 | 71 | 11.0 | |
| 23 | 200 | 186.54 | 33 | 35 | 80 | 117 | 71 | 11.8 | |
| 24 | 208 | 194.60 | 33 | 35 | 80 | 117 | 80 | 12.6 | |
| 25 | 216 | 202.66 | 33 | 35 | 80 | 117 | 80 | 13.4 | |
| 26 | 224 | 210.72 | 33 | 35 | 80 | 117 | 80 | 14.3 | |
| 28 | 241 | 226.86 | 33 | 35 | 80 | 117 | 80 | 16.0 | |
| 30 | 257 | 243.00 | 33 | 35 | 80 | 117 | 80 | 18.3 | |
| 32 | 273 | 259.14 | 33 | 35 | 80 | 117 | 80 | 20.4 | |
| 35 | 297 | 283.36 | 33 | 35 | 80 | 117 | 80 | 23.9 | |
| 36 | 306 | 291.43 | 33 | 35 | 80 | 117 | 80 | 25.1 | |
| 38 | 322 | 307.58 | 38 | 40 | 89 | 127 | 80 | 27.7 | |
| 40 | 338 | 323.74 | 38 | 40 | 89 | 127 | 90 | 30.4 | |
| 42 | 354 | 339.89 | 38 | 40 | 89 | 127 | 90 | 33.0 | |
| 45 | 378 | 364.12 | 38 | 40 | 89 | 127 | 90 | 37.5 | |
| 48 | 403 | 388.36 | 38 | 40 | 89 | 127 | 90 | 43.0 | |
| 50 | 419 | 404.52 | 38 | 40 | 89 | 127 | 90 | 46.0 | |
| 54 | 451 | 436.84 | 38 | 40 | 89 | 127 | 90 | 52.5 | |
| 60 | 500 | 485.33 | 38 | 40 | 89 | 127 | 90 | 64.0 | |
| 62 | 516 | 501.49 | 38 | 40 | 89 | 127 | 90 | 69.0 | |
| 65 | 540 | 525.73 | 38 | 40 | 89 | 127 | 90 | 73.5 | |
| 70 | 581 | 566.15 | 38 | 40 | 89 | 127 | 90 | 90.4 | |

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