{"product_id":"rk-m520h-heavy-duty-chain","title":"RK M520H Heavy Duty Non-Sealed Drive Chain","description":"\u003cp\u003eThe RK M520H is a heavy duty, non-sealed 520 drive chain for e-motos, made from carbon alloy steel with a natural finish. Choose 116, 118, 120 or 130 links; each chain comes with a clip connecting link.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUniversal 520 Chain\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e RK rates it to 30 hp, for bikes that came with a non-sealed chain\u003c\/p\u003e\n\u003cp\u003eRK's non-sealed heavy duty chains now use four side, or quad, rivet staked pins, which RK says are stronger and more stabilized, raising stress resistance under high loads and putting horsepower to the ground more efficiently. The bushings are solid and cold forged, a process that strengthens the metal for a stronger, more rigid chain, and RK adds a specially formulated coating.\u003c\/p\u003e\n\u003cp\u003eRK says those three changes together show a 40% increase in chain life. The chain is not endless, so it goes on with its included clip connecting link, and RK warns never to use two connecting links on one chain. RK also recommends new sprockets with every new chain, since damaged, worn or misaligned sprockets shorten chain life.\u003c\/p\u003e\n\u003cp\u003eRK rates the M520H at 7,700 lbs tensile strength with a maximum chain width of 19.7 mm and a maximum of 30 HP, and it weighs 1.59 kg per 100 links. RK recommends installation by a qualified mechanic with the proper tools.\u003c\/p\u003e","brand":"RK Chain","offers":[{"title":"116 Links","offer_id":67984988405989,"sku":"M520H-116","price":53.62,"currency_code":"USD","in_stock":true},{"title":"118 Links","offer_id":67984988438757,"sku":"M520H-118","price":54.55,"currency_code":"USD","in_stock":true},{"title":"120 Links","offer_id":67984988471525,"sku":"M520H-120","price":55.46,"currency_code":"USD","in_stock":true},{"title":"130 Links","offer_id":67984988504293,"sku":"M520H-130","price":60.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0511\/3964\/1496\/files\/rk-m520h-heavy-duty-chain-1.png?v=1793731938","url":"https:\/\/gritshift.com\/fr\/products\/rk-m520h-heavy-duty-chain","provider":"GritShift","version":"1.0","type":"link"}