{"product_id":"breaker-weight-spring-set-extreme-duty","title":"Breaker weight spring set. Extreme Duty","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eStronger springs than stock. For a slower advance curve, used to help solve detonation (pinging) issues with compression engines or poor fuel. Less breaker weight rattle during idling and improves idling stability. Note that stronger springs may require carburetor adjustment (richer). \u003cbr\u003eOEM replacement reference 32605-70 (which has standard strength springs). \u003cbr\u003e\u003cbr\u003eNote: 516300 is standard replacement, 516301 is heavy duty, 516598 is extreme duty. Mixing different spring strengths will give additional fine-tuning options.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctr\u003e\n\u003cth\u003eUnit\u003c\/th\u003e\n\u003ctd\u003ePR\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/table\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003e70-99 Big Twin (Excl. TC); 71-03 XL Sportster (NU). With mechanical advanced ignition\u003c\/p\u003e\u003ch2\u003ePart numbers\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSupplier SKU\u003c\/th\u003e\n\u003ctd\u003e516598\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer part\u003c\/th\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"MCS","offers":[{"title":"Default Title","offer_id":58622289838424,"sku":"516598","price":17.79,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0975\/8235\/0680\/files\/516598k.jpg?v=1790966344","url":"https:\/\/deathproofcycles.com\/products\/breaker-weight-spring-set-extreme-duty","provider":"Deathproof Cycles","version":"1.0","type":"link"}