{"product_id":"act-16-25-mazda-mx-5-miata-hd-race-sprung-4-pad-clutch-kit","title":"ACT 16-25 Mazda MX-5 Miata HD\/Race Sprung 4 Pad Clutch Kit - ZM12-HDG4","description":"ZM12-HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Shaft Diameter:\u003c\/strong\u003e 0.9375 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Spline Quantity:\u003c\/strong\u003e 22\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Diameter:\u003c\/strong\u003e 224 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Fitment Requirement:\u003c\/strong\u003e 225mm upgrade. Must use ACT 600870 flywheel (not included in kit) or a modified OE flywheel. 600870 flywheel is compatible with the OE clutch kit as well as an ACT clutch kit. Flywheel sold separately from clutch kits. Pressure plate bolts included (M8-1.25 x 20mm).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque Capacity:\u003c\/strong\u003e 399 ft-lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque Capacity Over OE:\u003c\/strong\u003e 87%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Material:\u003c\/strong\u003e Ceramic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelease Bearing Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlignment Tool Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Type:\u003c\/strong\u003e Sprung\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Plate Bolts Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrease Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot Bearing Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACT","offers":[{"title":"Default Title","offer_id":53795967271275,"sku":"ACTZM12-HDG4","price":840.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/9690\/4998\/files\/e7688fd363e5ad3906edd4e6990aac28L.jpg?v=1789863881","url":"https:\/\/www.raptorracing.ca\/products\/act-16-25-mazda-mx-5-miata-hd-race-sprung-4-pad-clutch-kit","provider":"Raptor Racing","version":"1.0","type":"link"}