{"product_id":"regina-520-dr-extra-drag-racing-chain-160-links-part-number-135dr-1004","title":"Regina 520 DR Extra Drag Racing Chain, 160 Links, Part Number 135DR\/1004","description":"520 DR Extra - Drag Racing Chain - 160 Links\n\u003cp\u003eThe Regina 520 DR Extra Drag Racing Chain is engineered for the severe demands of competitive drag racing. This 520-size chain includes 160 links and is designed for high-performance applications through Pro Stock-level use. Regina manufactures the chain with shot-peened plates, pins, and rollers to improve fatigue resistance and support reliable performance under repeated acceleration and load cycles.\u003c\/p\u003e\u003cp\u003eWith a breaking strength of 10,566 pounds and a fatigue limit of 2,135 pounds, the Regina 520 DR Extra provides the strength required for demanding racing powertrains when properly selected and installed. The chain is supplied with a clip-and-rivet-type master link for installation and service. Confirm vehicle, sprocket, and drivetrain fitment before ordering, as compatibility depends on the motorcycle or racing application and the selected 520 chain components.\u003c\/p\u003e\u003cp\u003eThis Regina drag racing chain is suitable for racers, performance builders, and specialty powersports applications requiring a durable, high-strength chain. The manufacturer part number is 135DR\/1004, and the vendor part number is also 135DR\/1004. Use the Regina brand and part number when verifying replacement requirements, installation specifications, and fitment with the vehicle or drivetrain manufacturer.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSize: 520 chain size\u003c\/li\u003e\n\u003cli\u003eModel: DR Extra Drag Racing Chain\u003c\/li\u003e\n\u003cli\u003eBrand: Regina\u003c\/li\u003e\n\u003cli\u003eManufacturer: Regina\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: 135DR\/1004\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 135DR\/1004\u003c\/li\u003e\n\u003cli\u003eLink Count: 160 links\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\u003eApplication: Designed for severe drag racing use up to Pro Stock-level applications\u003c\/li\u003e\n\u003cli\u003eMaster Link: Clip-and-rivet-type link included\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"REGINA","offers":[{"title":"Default Title","offer_id":67547537146091,"sku":"12210114","price":215.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/180807.png?v=1790678274","url":"https:\/\/ctracingservices.com\/products\/regina-520-dr-extra-drag-racing-chain-160-links-part-number-135dr-1004","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}