{"product_id":"clutch-masters-725-super-single-clutch-kit-k20-k24","title":"Clutch Masters 725 Super Single Clutch Kit for K20 K24","description":"\u003cul\u003e\n\u003cli\u003e7.25\" (184mm) single race disc \u003c\/li\u003e\n\u003cli\u003eBillet aluminum, Type 3 hard anodized \u003c\/li\u003e\n\u003cli\u003eApprox. 753 lb-ft torque capacity \u003c\/li\u003e\n\u003cli\u003eRequires Clutch Masters 725 flywheel \u003c\/li\u003e\n\u003cli\u003eFits K20 K24 5\/6-speed transmissions \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#TechnicalData\"\u003eTechnical Data\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#InstallGuide\"\u003eInstall Guide\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eClutch Masters 725 Super Single Clutch Kit | K20 K24\u003c\/h3\u003e\n\n\n\u003cp\u003eIf you're putting serious power through a K-series and the twin disc feels like overkill, this is the setup Clutch Masters built for you. The Clutch Masters 725 Super Single Clutch Kit is a 7.25\" (184mm) race clutch for K20 and K24 manual transmissions, from a K20A2 RSX Type-S drag build to a K24 swap that lives at the strip. Heads up before you add to cart: this is the 08037-SD7R-X version, and the required 725 Series flywheel is sold separately.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It Is and Why It Works\u003c\/h3\u003e\n\u003cp\u003eThe 725 Super Single takes Clutch Masters' drag-racing twin disc platform and strips it down to one 7.25\" race disc. Less rotating mass than a twin means the motor revs quicker, shifts feel faster, and you free up a little power that a heavier assembly would eat. Clutch Masters rates the Super Single at roughly 753 lb-ft of torque, and they're upfront that the number is a ballpark estimate, not a guarantee. Driving style and how much time the car spends at peak torque matter as much as the rating.\u003c\/p\u003e\n\u003cp\u003eThe cover is the reason this clutch works. Clutch Masters machines it from billet aluminum and Type 3 hard anodizes it. Their billet covers flex about .003\" under load where a cast or stamped cover can flex up to .030\", so every bit of pedal travel goes into engaging and disengaging the disc instead of bending the cover. That's what makes a race clutch this aggressive still feel consistent at the line, pass after pass.\u003c\/p\u003e\n\u003cp\u003eThis kit fits the small-bellhousing K-series 5-speed and 6-speed gearboxes in the RSX (DC5), EP3, FG2 and FA5 Civic Si, FB6 and FG4 Civic Si, CL9 and CU2 TSX, and the 2.4L manual Accords. It's pure racing hardware that tolerates occasional street driving, not the other way around.\u003c\/p\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e08037-SD7R-X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisc diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.25\" (184mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisc type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle race disc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCover\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBillet aluminum, Type 3 hard anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorque capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 753 lb-ft (per manufacturer, estimated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlywheel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRequired, NOT included. Clutch Masters 725 Series flywheel, application specific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDrag racing and all-motor or nitrous race builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHonda\/Acura K-series manual, 5-speed and 6-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTrim\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eRSX\u003c\/td\u003e\n\u003ctd\u003eType-S, 6-speed\u003c\/td\u003e\n\u003ctd\u003eK20A2 \/ K20Z1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eRSX\u003c\/td\u003e\n\u003ctd\u003eBase, 5-speed\u003c\/td\u003e\n\u003ctd\u003eK20A3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2011\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eCSX (Canada)\u003c\/td\u003e\n\u003ctd\u003eType-S, 6-speed\u003c\/td\u003e\n\u003ctd\u003eK20Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013-2015\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eILX\u003c\/td\u003e\n\u003ctd\u003e2.4L, 6-speed\u003c\/td\u003e\n\u003ctd\u003eK24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2008\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eTSX\u003c\/td\u003e\n\u003ctd\u003eManual\u003c\/td\u003e\n\u003ctd\u003eK24A2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2014\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eTSX\u003c\/td\u003e\n\u003ctd\u003e2.4L, 6-speed\u003c\/td\u003e\n\u003ctd\u003eK24Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2012\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eAccord\u003c\/td\u003e\n\u003ctd\u003e2.4L, manual\u003c\/td\u003e\n\u003ctd\u003eK24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2005\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Si\u003c\/td\u003e\n\u003ctd\u003e5-speed\u003c\/td\u003e\n\u003ctd\u003eK20A3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2011\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Si\u003c\/td\u003e\n\u003ctd\u003e6-speed\u003c\/td\u003e\n\u003ctd\u003eK20Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2015\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Si\u003c\/td\u003e\n\u003ctd\u003e6-speed\u003c\/td\u003e\n\u003ctd\u003eK24Z7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eManual transmission K20 and K24 applications only. The 2.4L ILX needs the 6-speed manual (the 2.0L ILX was automatic only). V6 Accords and the turbo K20C1 Civic Type R take a different clutch entirely.\u003c\/p\u003e\n\n\u003ch3\u003eWhat to Know Before You Buy\u003c\/h3\u003e\n\u003cp\u003eThe flywheel situation is the thing that catches people. The -X in this part number means no flywheel in the box, and this clutch only works with a Clutch Masters 725 Series flywheel because the assembly is built around its specific dimensions. Your stock flywheel will not work. Clutch Masters makes them in steel (1045 billet core, black oxide treated) and aluminum (billet 6061-T6), both SFI 1.2 rated for NHRA, IHRA, SCCA and NASA competition. Budget for one or buy the version with the flywheel included. Sanctioned drag classes usually require that SFI-rated flywheel anyway, so pick based on your rulebook and how much rotating mass you want.\u003c\/p\u003e\n\u003cp\u003eBe honest with yourself about how the car gets driven. A rigid 7.25\" race disc engages hard and fast, with none of the take-up a sprung street disc gives you. Combined with the low rotating mass, it takes real footwork in traffic and it will chatter. Clutch Masters says it themselves: a race clutch on a street car wears fast and is unpleasant to live with. If your K20 or K24 sees commuting duty and the occasional track day under about 500 lb-ft, an FX350 or FX400 will hold your power and keep you sane. This kit is for the car that races and occasionally drives to the gas station, not the one that daily drives and occasionally races.\u003c\/p\u003e\n\u003cp\u003eWhile you're in there, replace the release bearing and check the clutch master and slave cylinders, because a fresh race clutch shows every weakness in tired hydraulics. Grab a clutch alignment tool if you don't have one. And if you're between the Super Single and the twin disc, the twin holds a bit less by Clutch Masters' own estimates but is the more streetable of the two; the Super Single is the lighter, simpler drag piece.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTrim\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eRSX\u003c\/td\u003e\n\u003ctd\u003eType-S, 6-speed\u003c\/td\u003e\n\u003ctd\u003eK20A2 \/ K20Z1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eRSX\u003c\/td\u003e\n\u003ctd\u003eBase, 5-speed\u003c\/td\u003e\n\u003ctd\u003eK20A3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2011\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eCSX (Canada)\u003c\/td\u003e\n\u003ctd\u003eType-S, 6-speed\u003c\/td\u003e\n\u003ctd\u003eK20Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013-2015\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eILX\u003c\/td\u003e\n\u003ctd\u003e2.4L, 6-speed\u003c\/td\u003e\n\u003ctd\u003eK24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2008\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eTSX\u003c\/td\u003e\n\u003ctd\u003eManual\u003c\/td\u003e\n\u003ctd\u003eK24A2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2014\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eTSX\u003c\/td\u003e\n\u003ctd\u003e2.4L, 6-speed\u003c\/td\u003e\n\u003ctd\u003eK24Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2012\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eAccord\u003c\/td\u003e\n\u003ctd\u003e2.4L, manual\u003c\/td\u003e\n\u003ctd\u003eK24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2005\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Si\u003c\/td\u003e\n\u003ctd\u003e5-speed\u003c\/td\u003e\n\u003ctd\u003eK20A3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2011\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Si\u003c\/td\u003e\n\u003ctd\u003e6-speed\u003c\/td\u003e\n\u003ctd\u003eK20Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2015\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Si\u003c\/td\u003e\n\u003ctd\u003e6-speed\u003c\/td\u003e\n\u003ctd\u003eK24Z7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eManual transmission K20 and K24 applications only. The 2.4L ILX needs the 6-speed manual (the 2.0L ILX was automatic only). V6 Accords and the turbo K20C1 Civic Type R take a different clutch entirely.\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\u003cli id=\"TechnicalData\"\u003e\n\n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u003cli id=\"InstallGuide\"\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n","brand":"Clutch Masters","offers":[{"title":"Default Title","offer_id":46008944590882,"sku":"CLM-08037-SD7R-X","price":971.16,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/b6eed5af-2cde-4c8a-aaaa-f12db683c154-800-original-79da.jpg?v=1784057014","url":"https:\/\/www.hybrid-racing.com\/products\/clutch-masters-725-super-single-clutch-kit-k20-k24","provider":"Hybrid Racing","version":"1.0","type":"link"}