The Regina 520 DR Extra Drag Racing Chain is engineered for the severe demands of competitive drag racing. This 120-link chain is designed for high-performance applications up to Pro Stock level, providing dependable power transfer under demanding acceleration and load conditions. Regina manufactures this chain with performance-focused construction intended for racers and builders who require durable drivetrain components.
Plates, pins, and rollers are shot-peened to improve fatigue resistance and support consistent performance during repeated high-load launches. The chain delivers a breaking strength of 10,566 pounds and a fatigue limit of 2,135 pounds, making it suitable for appropriately prepared drag racing motorcycles and other compatible 520-chain applications. The included clip-and-rivet-type link supports installation and service flexibility when used with the correct fitment and assembly procedures.
Verify vehicle fitment, sprocket compatibility, chain length requirements, and manufacturer installation recommendations before ordering. The Regina 520 DR Extra is identified by manufacturer part number 135DR/1000 and vendor part number 135DR/1000.
Features:
- Size: 520 chain size with 120 links
- Model: 520 DR Extra drag racing chain
- Brand: Regina
- Manufacturer Part Number: 135DR/1000
- Vendor Part Number: 135DR/1000
- Application: Designed for severe drag racing use up to Pro Stock level
- Construction: Plates, pins, and rollers are shot-peened for improved fatigue resistance
- Breaking Strength: 10,566 pounds
- Fatigue Limit: 2,135 pounds
- Included Link: Clip-and-rivet-type link included
- Fitment: Suitable for compatible 520-chain drag racing applications; verify sprocket and vehicle compatibility before installation