{"product_id":"synchrotech-transmissions-carbon-synchro-kit-fk8-civic-type-r","title":"Synchrotech Carbon Synchro Kit for FK8 Civic Type R","description":"\u003cul\u003e\n\u003cli\u003eAvailable as Two or Four Gear Solutions \u003c\/li\u003e\n\u003cli\u003eCompatible with FK8 Civic Type R \u003c\/li\u003e\n\u003cli\u003eSynchros Only, No Springs or Sleeves Included \u003c\/li\u003e\n\u003cli\u003eCarbon Material Makes for More Durable Synchro \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 \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eSynchrotech Carbon Synchro Set - 2017-2021 Civic Type R (FK8)\u003c\/h3\u003e\n\n\u003cp\u003eThe FK8 gearbox is good, and it's also attached to an engine that encourages you to use it. Enough hard shifts and enough track days and the synchros start letting you know. These are Synchrotech's carbon synchros, sold as first and second, third and fourth, or the full 1-4 set, so you can replace what's actually worn rather than everything.\u003c\/p\u003e\n\n\u003ch4\u003eCarbon Only, And That's Right For This Car\u003c\/h4\u003e\n\n\u003cp\u003eUnlike the older Honda platforms where brass makes sense for a daily driver, this is a carbon-only offering, which suits what an FK8 actually is.\u003c\/p\u003e\n\n\u003cp\u003eSynchrotech's carbon synchros use a full carbon composite lining built on carbon-carbon technology originally developed for aerospace. The material acts as a braking element during engagement, stopping the gear faster than brass can. That means less grind on the high-rpm shifts an FK8 owner is regularly making, and less wear on the sleeves and engagement teeth over time.\u003c\/p\u003e\n\n\u003cp\u003eOn a car that gets tracked, autocrossed, and driven hard on the road, carbon is the material worth having.\u003c\/p\u003e\n\n\u003ch4\u003eBuy Only What's Worn\u003c\/h4\u003e\n\n\u003cp\u003eSold in three configurations, and wear on these transmissions is rarely even.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFirst and second (SYN-FK8-1)\u003c\/strong\u003e take the most abuse by a wide margin. Highest torque multiplication, hardest shifts, and the gears you're using on every launch and every corner exit. If your grinding is isolated to the low gears, this is your set.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThird and fourth (SYN-FK8-3)\u003c\/strong\u003e for wear further up the box, which typically shows on cars seeing a lot of track time where you're spending real time in those gears.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFull 1-4 set (SYN-FK8-1-4)\u003c\/strong\u003e for a complete refresh, or when you've inspected and found wear throughout. Given what it costs to get into the transmission, this is often the sensible call even if only two gears are obviously bad.\u003c\/p\u003e\n\n\u003ch4\u003eTriple Cone And Dual Cone\u003c\/h4\u003e\n\n\u003cp\u003eWorth knowing what's in there, since it explains why these are split the way they are.\u003c\/p\u003e\n\n\u003cp\u003eThe FK8 uses \u003cstrong\u003etriple cone synchros on first and second\u003c\/strong\u003e and \u003cstrong\u003edual cone on third and fourth\u003c\/strong\u003e. More cones means more friction surface, which is how Honda got the shift quality this car has, and it's also why the two groups are different parts.\u003c\/p\u003e\n\n\u003cp\u003eThat's the reason you can't buy one set covering everything from one to four as a single design. The 1-4 set is both types packaged together.\u003c\/p\u003e\n\n\u003ch4\u003eFirst Through Fourth Only\u003c\/h4\u003e\n\n\u003cp\u003eWorth saying plainly so you're not left wondering. Synchrotech covers gears one through four on this transmission. \u003cstrong\u003eThere are no fifth or sixth gear synchros available for the FK8\u003c\/strong\u003e, and no matching hubs, sleeves, or springs at this time.\u003c\/p\u003e\n\n\u003cp\u003eThat's a limitation of what exists rather than a gap in what we stock. If your wear is in fifth or sixth, or if you find worn hubs or sleeves during inspection, you'll be looking at OEM parts or a different approach for those.\u003c\/p\u003e\n\n\u003ch4\u003eHow To Tell Your Synchros Are Done\u003c\/h4\u003e\n\n\u003cp\u003eA few reliable signs, and one test worth running.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIt grinds into one specific gear.\u003c\/strong\u003e Isolated grinding almost always means an isolated problem, and it tells you exactly which set to order.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDownshifts are worse than upshifts.\u003c\/strong\u003e The useful one. On an upshift, revs are falling naturally and the synchro gets help. On a downshift it has to drag the clutch disc and input shaft up to speed by itself. If the car upshifts cleanly but grinds or blocks on a normal downshift, your synchros are worn.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIt's getting worse.\u003c\/strong\u003e Wear starts as slight notchiness and progresses to something you feel clearly in your hand.\u003c\/p\u003e\n\n\u003cp\u003eOne honest note: grinding can also come from a clutch that isn't fully disengaging or from the wrong transmission fluid. Rule those out first, they're far cheaper than pulling a transmission.\u003c\/p\u003e\n\n\u003ch4\u003eInspect Your Hubs And Sleeves\u003c\/h4\u003e\n\n\u003cp\u003eThe advice worth the most on this page. Synchros work against your hubs and sleeves, and if those surfaces are worn, new synchros won't fix your shifting.\u003c\/p\u003e\n\n\u003cp\u003eCarbon on a chewed-up hub is no better than brass on a chewed-up hub. So look at your engagement teeth, your sleeves, and your hub splines before you close the case. Sharp and clean means these will transform the shift. Rounded off means you need more than synchros, and finding that out now is far better than after everything's back together.\u003c\/p\u003e\n\n\u003ch4\u003eWorth Doing Once\u003c\/h4\u003e\n\n\u003cp\u003eGetting into the transmission is the expensive part of this job, whether you're paying a shop or spending your own weekend. The parts are the cheap half.\u003c\/p\u003e\n\n\u003cp\u003eSo while it's open, inspect everything and replace what's genuinely past spec. If you're finding wear across the box, the full 1-4 set is better value than going back in six months for the gears you skipped.\u003c\/p\u003e\n\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\n\u003cp\u003e2017-2021 Honda Civic Type R (FK8)\u003c\/p\u003e\n\n\u003cp\u003eTriple cone first and second, dual cone third and fourth.\u003c\/p\u003e\n\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth scope=\"col\"\u003ePart Number\u003c\/th\u003e\n            \u003cth scope=\"col\"\u003eCoverage\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSYN-FK8-1\u003c\/td\u003e\n\u003ctd\u003e1st and 2nd\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSYN-FK8-3\u003c\/td\u003e\n\u003ctd\u003e3rd and 4th\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSYN-FK8-1-4\u003c\/td\u003e\n\u003ctd\u003e1st through 4th\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWho Should Run These\u003c\/h4\u003e\n\n\u003cp\u003eThis is for the FK8 owner whose transmission has started grinding, and for the builder going through a gearbox on a car that's earned it. Track days, autocross, or a car that's simply been driven the way a Type R invites you to drive it. Carbon is the right material for how these cars get used. Inspect properly, order what's actually worn, and get your shifts back.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2017-2021 Honda Civic Type R (FK8). \u003cstrong\u003eMaterial:\u003c\/strong\u003e Synchrotech carbon composite. \u003cstrong\u003eConfigurations:\u003c\/strong\u003e 1st\/2nd (SYN-FK8-1), 3rd\/4th (SYN-FK8-3), or full 1st-4th set (SYN-FK8-1-4). \u003cstrong\u003eDesign:\u003c\/strong\u003e triple cone first and second, dual cone third and fourth. \u003cstrong\u003eNote:\u003c\/strong\u003e 5th and 6th gear synchros are not available for this transmission.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003cp\u003e2017-2021 Honda Civic Type R\u003cbr\u003e2021 Honda Civic Type R Limited Edition\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u003c\/ul\u003e\n","brand":"Synchrotech Transmissions","offers":[{"title":"1st-4th","offer_id":47456887341090,"sku":"SYN-FK8-1-4","price":299.95,"currency_code":"USD","in_stock":false},{"title":"1st\/2nd","offer_id":47456887373858,"sku":"SYN-FK8-1","price":86.63,"currency_code":"USD","in_stock":false},{"title":"3rd\/4th","offer_id":47456887406626,"sku":"SYN-FK8-3","price":89.63,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/synchrotech-carbon-synchro-kit_fyrp.jpg?v=1788982912","url":"https:\/\/www.hybrid-racing.com\/products\/synchrotech-transmissions-carbon-synchro-kit-fk8-civic-type-r","provider":"Hybrid Racing","version":"1.0","type":"link"}