520 standard roller chain and motorcycle chain
Solid rollers
Shot-peened parts
High cylindrical and roundness accuracy
Exacting tolerances provide low friction
Pre-stretched
Special alloy steel
Average tensile strength of 7,200 lbs.
应用：
Commonly used on dirtbikes, dual sports and quads. Custom lengths for extended swing arms and color chain too. Motocross race chains, street bike O-ring and X ring and the high strength chain.
Detailed specification:
Motorcycle chain
| 尺寸 | Picth |
| 25小时 | 6.35 |
| 219 | 7.774 |
| 219H | 7.774 |
| 05T | 8.00 |
| 270H | 8.50 |
| 415M | 12.70 |
| 415 | 12.70 |
| 415MH | 12.70 |
| 420 | 12.70 |
| 420MH | 12.70 |
| 428 | 12.70 |
| 428MH | 12.70 |
| 520 | 15.875 |
| 520MH | 15.875 |
| 525 | 15.875 |
| 525MH | 15.875 |
| 530 | 15.875 |
| 530MH | 15.875 |
| 630 | 19.05 |
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