{"product_id":"regina-520-dr-extra-drag-racing-chain-120-links-part-number-135dr-1000","title":"Regina 520 DR Extra Drag Racing Chain, 120 Links, Part Number 135DR\/1000","description":"520 DR Extra - Drag Racing Chain - 120 Links\n\u003cp\u003eThe 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.\u003c\/p\u003e\u003cp\u003ePlates, 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.\u003c\/p\u003e\u003cp\u003eVerify 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.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSize: 520 chain size with 120 links\u003c\/li\u003e\n\u003cli\u003eModel: 520 DR Extra drag racing chain\u003c\/li\u003e\n\u003cli\u003eBrand: Regina\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: 135DR\/1000\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 135DR\/1000\u003c\/li\u003e\n\u003cli\u003eApplication: Designed for severe drag racing use up to Pro Stock level\u003c\/li\u003e\n\u003cli\u003eConstruction: Plates, pins, and rollers are shot-peened for improved fatigue resistance\u003c\/li\u003e\n\u003cli\u003eBreaking Strength: 10,566 pounds\u003c\/li\u003e\n\u003cli\u003eFatigue Limit: 2,135 pounds\u003c\/li\u003e\n\u003cli\u003eIncluded Link: Clip-and-rivet-type link included\u003c\/li\u003e\n\u003cli\u003eFitment: Suitable for compatible 520-chain drag racing applications; verify sprocket and vehicle compatibility before installation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"REGINA","offers":[{"title":"Default Title","offer_id":67547481407723,"sku":"12210110","price":161.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/180795.png?v=1790678080","url":"https:\/\/ctracingservices.com\/products\/regina-520-dr-extra-drag-racing-chain-120-links-part-number-135dr-1000","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}