{"product_id":"mcs506975","title":"Jims Sprocket Shaft. 72-E81 B.T – 72-E81 Big Twin with OEM Flywheels","description":"\u003ch2\u003eJims Sprocket Shaft. 72-E81 B.T – 72-E81 Big Twin with OEM Flywheels\u003c\/h2\u003e\n\u003cp\u003eFits with OEM flywheels. Sprocket shaft does not have a keyway. Taper is 8-1\/2°. Biggest part of taper is approx. 1.400\". Shaft is 4.262\" long from bearing shoulder to end of smalll thread. Use 24017-80 JIMS nut (MCS 978257) on flywheel side and use 24003-55 nut (MCS 518000) on sprocket side. Note: Use MCS 502616 JIMS shaft for all 70-99 aftermarket flywheels that have a keyway and 6° taper. JIMS shafts are precision machined in Camarillo; California from a special order steel. Each and every part is thoroughly inspected and after heat treating all threads go through a special process to make them withstand greater torque stress. All shafts are ground to a 16 micron finish or better; unless specified otherwise. All ground diameters are concentric to well within .0003\"; making truing and rebuilding quicker and with less effort.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e72-E81 Big Twin with OEM flywheels (NU)\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Jims\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e MOTOR PARTS \u0026gt; SPROCKET SHAFTS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e EA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 506975\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Jim's","offers":[{"title":"Default Title","offer_id":57376856801667,"sku":"MCS506975","price":163.76,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/506975k_7262e8ea-bf94-4e2c-a8bb-53c4b81822a4.jpg?v=1775554811","url":"https:\/\/hogparts.com\/products\/mcs506975","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}