{"product_id":"tamiya-trf421-chassis-kit","title":"Tamiya TRF421 Chassis Kit","description":" \u003cdiv id=\"collapse-B\" class=\"collapse pdp-tabs-collapse\" data-parent=\"#content\" role=\"tabpanel\" aria-labelledby=\"heading-B\"\u003e \u003cdiv class=\"card-body pdp-tab-card-body p-2 pt-lg-4 container\"\u003e --Start Overview Tab--\u003cdiv style=\"max-width:930px\" class=\"mx-auto mb-1 long-desc-content\"\u003e \u003csection id=\"consumerWebCopyDiv\"\u003e \u003ch3\u003eOverview\u003c\/h3\u003e \u003cp\u003eAfter two and a half years of development, we now bring you the ALL-NEW TRF 421. The highest end touring car chassis series we produce has received a whole new suspension and layout makeover!\u003c\/p\u003e\t\t\u003cp\u003eThis 2-belt driven 4WD carbon fiber double-deck design is loaded with new features such as an updated drivetrain, a new lower deck shape, front and rear upper A arms, and new shorter dampers, all of which promise to translate into serious speed on the track! Other notable features include a choice between one- and two-piece upper deck layouts for different chassis flex characteristics, plus updated suspension geometry that keeps the chassis more stable.\u003c\/p\u003e\t\t\u003cp\u003eThe Drivetrain uses a front direct coupling and rear oil-filled gear diff. Equal length front and rear drive belts minimize pitch.Suspension Arms are a rigid \"A\" design with 7mm longer span compared to the TRF420X for stable roll, while upper arm mounts can be slid to adjust camber. Three damper pivot positions are provided. Dampers are 5.5mm shorter than on the TRF420X, for a lighter chassis and lower center of gravity. Attach them directly to aluminum mounts and fine-tune with spacers.\u003c\/p\u003e \u003c\/section\u003e\n\u003c\/div\u003e Stop Overview Tab \u003c\/div\u003e \u003c\/div\u003e \u003cdiv id=\"pane-C\" class=\"card pdp-tabs-card tab-pane fade\" role=\"tabpanel\" aria-labelledby=\"tab-C\"\u003e \u003cdiv class=\"card-header pdp-tabs-card-header p-2\" role=\"tab\" id=\"heading-C\"\u003e \u003ch5 class=\"mb-0\"\u003e \u003cbutton type=\"button\" class=\"pdp-tabs-button p-0 fs-18 btn btn-link btn-block collapsed\" data-toggle=\"modal\" data-target=\"#pdp-tabs-modal\" aria-expanded=\"false\" aria-controls=\"collapse-C\"\u003e \u003ci class=\"fa-light fa-chevron-right fs-18\"\u003e\u003c\/i\u003e\u003cspan class=\"card-title\"\u003eAll Features\u003c\/span\u003e \u003c\/button\u003e \u003c\/h5\u003e \u003c\/div\u003e \u003cdiv id=\"collapse-C\" class=\"collapse pdp-tabs-collapse\" role=\"tabpanel\" data-parent=\"#content\" aria-labelledby=\"heading-C\"\u003e \u003cdiv class=\"card-body pdp-tab-card-body p-2 container\"\u003e \u003cdiv class=\"col-12 mt-0 mt-lg-3 fs-24 p-0 key-features-wrapper\"\u003e \u003cdiv class=\"intro-block\"\u003e \u003cul\u003e \u003cli\u003eDrivetrain Features 22.4mm Toward Center Motor Position\u003c\/li\u003e \u003cli\u003eUpdated Setup Of Spur Gear And Drive Belts\u003c\/li\u003e \u003cli\u003eA-Shaped Suspension Arms\u003c\/li\u003e \u003cli\u003eFront And Rear Differential Pullies\u003c\/li\u003e \u003cli\u003eLightweight Rear Wheel Axles\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003c\/div\u003e Start Features Tab\u003cdiv style=\"max-width:930px\" class=\"mx-auto mb-1 long-desc-content\"\u003e \u003csection id=\"featureListDiv\"\u003e Start Key Features \u003ch3\u003eFeatures\u003c\/h3\u003e \u003cdiv class=\"row mb-2\"\u003e - Column 1 \u003cdiv class=\"col-lg-6 col-sm-12\"\u003e \u003cul style=\"margin-bottom: 0\"\u003e \u003cli\u003e1\/10 scale R\/C chassis assembly kit.\u003c\/li\u003e \u003cli\u003eThe drivetrain features the motor position moved 22.7mm toward the chassis center compared to the TRF420X Chassis Kit and has identical length front and rear drive belts for stable drivability.\u003c\/li\u003e\t\t\t\t\t\u003cli\u003eWith updated setup of spur gear and drive belts, only one dedicated nut is required to attach spur gear, which enhances efficiency of maintenance.\u003c\/li\u003e \u003cli\u003eThe new lower deck is smaller compared to the one used on the TRF420X Chassis Kit to limit ground clearance when the chassis experiences roll.\u003c\/li\u003e\t\t\t\t\t\u003cli\u003eChoose from two types (one-piece and two-piece) of upper deck. Changing screw positions allows five setup patterns in total.\u003c\/li\u003e \u003cli\u003eA-shaped suspension arms are employed for higher rigidity. (The 420X chassis kit uses I-shaped suspension arms.) Longer lower arm spans limit swing width and ensure stability when the chassis experiences roll.\u003c\/li\u003e\t\t\t\t\t\u003cli\u003eAlong with longer lower arm spans, front and rear suspension setups are changed from suspension blocks to suspension balls. Roughly 7mm-longer arm spans limit swing width and ensure stability when the chassis experiences roll.\u003c\/li\u003e \u003cli\u003eToe angle can be adjusted by uprights. (The toe angle of lower arm inside is 0 degrees.)\u003c\/li\u003e\t\t\t\t\t\u003cli\u003eThree attachment damper positions (inner, middle, and outer) on front and rear lower arms are offered by two types of aluminum bushings.\u003c\/li\u003e \u003cli\u003eChanging positions of upper arm mounts by screws allows changes to front and rear caster angles, which is suitable for current high-downforce races. Front caster available angles: 3, 4, and 5 degrees. Rear caster available angles: -.5, -1.5, and -2.5 degrees.\u003c\/li\u003e\t\t\t\t\t\u003cli\u003eDampers are shorter by 5.5mm compared to the 420X chassis kit, which provides an exceptionally low center of gravity and reduces the weight, for a more dynamic driving experience.\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e - Column 2 \u003cdiv class=\"col-lg-6 col-sm-12\"\u003e \u003cul\u003e \u003cli\u003eDedicated damper ends are used front and rear to ensure the same piston level.\u003c\/li\u003e \u003cli\u003eNew damper oil seals (Item 51738) are used to keep the maximum oil amount and to make use of oil dampers efficiently.\u003c\/li\u003e\t\t\t\t\t\u003cli\u003eWhile the 420X chassis kit uses carbon fiber damper stays, this chassis kit employs aluminum mounts for precise angle adjustments based on the number of spacers used.\u003c\/li\u003e \u003cli\u003eFront and rear differential pullies are newly molded while direct coupling and oil-filled gear differential are employed at front and rear, respectively. (The currently sold Hop-Up Option and Spare Parts can be used.)\u003c\/li\u003e\t\t\t\t\t\u003cli\u003eThe front features double cardan joint shafts while rear employs lightweight universal drive shafts. New axle shafts (Item 42388) and 45mm drive shafts (Item 42387) are also used for both front and rear to ensure efficient drivetrain and maintenance.\u003c\/li\u003e \u003cli\u003eNewly designed lightweight rear wheel axles enhance durability.\u003c\/li\u003e\t\t\t\t\t\u003cli\u003ePrecision stabilizers are attached at a lower position than drive shafts for efficient maintenance of drivetrain. Includes 1.0mm diameter (x1), 1.1mm diameter (x2) and 1.2mm diameter (x1).\u003c\/li\u003e \u003cli\u003eThe steering system pairs dual steering arms and Ackerman bush with a new steering bridge. Three types of new spacers featuring different diameters allow steering angle adjustment.\u003c\/li\u003e\t\t\t\t\t\u003cli\u003eIncludes Sealed Ball Bearings from the TRF series for efficient rotation and Item 22078 Aluminum Differential Holders (0.8mm Offset, 2pcs.).\u003c\/li\u003e \u003cli\u003eThe newly molded quick-plate design battery holder does not require tape for attachment. Depending on the battery pack equipped, change positions of spacers and posts. Shorty pack compatible.\u003c\/li\u003e\t\t\t\t\t\u003cli\u003eComes with a carrying case dedicated to the TRF421 chassis kit.\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003c\/div\u003e\t\u003c\/section\u003e End Key Features Start Feature Insets Start 2 Column Row -\/-\u0026gt;\t\u003csection id=\"mediaFeatureDiv\"\u003e \u003cdiv class=\"row mediaFeature\"\u003e \u003cdiv class=\"col-lg-6 col-sm-12\"\u003e \u003cimg alt=\"ALT_TEXT\" loading=\"lazy\" src=\"https:\/\/www.horizonhobby.com\/dw\/image\/v2\/BFBR_PRD\/on\/demandware.static\/-\/Sites-horizon-master\/default\/PDPImages\/SKU_PP_01.jpg\" class=\"img-fluid\"\u003e \u003ch5 class=\"text-center p-2 ml-0 mb-0 w-100\"\u003e\u003cstrong\u003eFEATURE_INSET\u003c\/strong\u003e\u003c\/h5\u003e \u003cp\u003eTEXT\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"col-lg-6 col-sm-12\"\u003e \u003cimg alt=\"ALT_TEXT\" loading=\"lazy\" src=\"https:\/\/www.horizonhobby.com\/dw\/image\/v2\/BFBR_PRD\/on\/demandware.static\/-\/Sites-horizon-master\/default\/PDPImages\/SKU_PP_02.jpg\" class=\"img-fluid\"\u003e \u003ch5 class=\"text-center p-2 ml-0 mb-0 w-100\"\u003e\u003cstrong\u003eFEATURE_INSET\u003c\/strong\u003e\u003c\/h5\u003e \u003cp\u003eTEXT\u003c\/p\u003e \u003c\/div\u003e \u003c\/div\u003e End 2 Column Row Start 2 Column Row -\/-\u0026gt; \u003cdiv class=\"row mediaFeature\"\u003e \u003cdiv class=\"col-lg-6 col-sm-12\"\u003e \u003cimg alt=\"ALT_TEXT\" loading=\"lazy\" src=\"https:\/\/www.horizonhobby.com\/dw\/image\/v2\/BFBR_PRD\/on\/demandware.static\/-\/Sites-horizon-master\/default\/PDPImages\/SKU_PP_03.jpg\" class=\"img-fluid\"\u003e \u003ch5 class=\"text-center p-2 ml-0 mb-0 w-100\"\u003e\u003cstrong\u003eFEATURE_INSET\u003c\/strong\u003e\u003c\/h5\u003e \u003cp\u003eTEXT\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"col-lg-6 col-sm-12\"\u003e \u003cimg alt=\"ALT_TEXT\" loading=\"lazy\" src=\"https:\/\/www.horizonhobby.com\/dw\/image\/v2\/BFBR_PRD\/on\/demandware.static\/-\/Sites-horizon-master\/default\/PDPImages\/SKU_PP_01.jpg\" class=\"img-fluid\"\u003e \u003ch5 class=\"text-center p-2 ml-0 mb-0 w-100\"\u003e\u003cstrong\u003eFEATURE_INSET\u003c\/strong\u003e\u003c\/h5\u003e \u003cp\u003eTEXT\u003c\/p\u003e \u003c\/div\u003e \u003c\/div\u003e End 2 Column Row Start Centered Row -\/-\u0026gt; \u003cdiv class=\"row d-inline-flex justify-content-center\"\u003e \u003cdiv class=\"col-lg-6 col-sm-12\"\u003e \u003cimg alt=\"ALT_TEXT\" loading=\"lazy\" src=\"https:\/\/www.horizonhobby.com\/dw\/image\/v2\/BFBR_PRD\/on\/demandware.static\/-\/Sites-horizon-master\/default\/PDPImages\/SKU_PP_05.jpg\" class=\"img-fluid\"\u003e \u003ch5 class=\"text-center p-2 ml-0 mb-0 w-100\"\u003e\u003cstrong\u003eFEATURE_INSET\u003c\/strong\u003e\u003c\/h5\u003e \u003cp\u003eTEXT\u003c\/p\u003e \u003c\/div\u003e \u003c\/div\u003e\t \u003c\/section\u003e\t End Centered Feature Row \u003c\/div\u003e End Features Tab \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv id=\"pane-D\" class=\"card pdp-tabs-card tab-pane fade\" role=\"tabpanel\" aria-labelledby=\"tab-D\"\u003e \u003cdiv class=\"card-header pdp-tabs-card-header p-2\" role=\"tab\" id=\"heading-D\"\u003e \u003ch5 class=\"mb-0\"\u003e \u003cbutton type=\"button\" class=\"pdp-tabs-button p-0 fs-18 btn btn-link btn-block collapsed\" data-toggle=\"modal\" data-target=\"#pdp-tabs-modal\" aria-expanded=\"false\" aria-controls=\"collapse-D\"\u003e \u003ci class=\"fa-light fa-chevron-right fs-18\"\u003e\u003c\/i\u003e\u003cspan class=\"card-title\"\u003eSpecs\u003c\/span\u003e \u003c\/button\u003e \u003c\/h5\u003e \u003c\/div\u003e \u003cdiv id=\"collapse-D\" class=\"collapse pdp-tabs-collapse\" role=\"tabpanel\" data-parent=\"#content\" aria-labelledby=\"heading-D\"\u003e \u003cdiv class=\"card-body pdp-tab-card-body p-0 p-lg-2 mb-lg-3 container\"\u003e \u003cdiv class=\"specs-content\"\u003e \u003cdiv class=\"container\"\u003e \u003ch3 class=\"my-2 d-none d-lg-block\"\u003eProduct Specs\u003c\/h3\u003e \u003cdiv class=\"row product-specifications\"\u003e \u003cdiv class=\"col-12 col-lg-6\"\u003e \u003cdiv class=\"container p-0\"\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Ball Bearings \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eFull Ball Bearings\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Battery \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eSold Separately\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Body \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eSold Separately\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Charger \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eSold Separately\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Chassis \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eTRF421\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Completion Level \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eKit\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Differential \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eFront-Direct Coupler SPOOL, Rear-Oil-Filled gear\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Drive Type \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eForward\/Brake\/Reverse\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Drivetrain \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003e4WD\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Gear Ratio \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eAdjustable\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Manufacturer # \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003e42384\u003c\/td\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"col-12 col-lg-6 p-0\"\u003e \u003cdiv class=\"container\"\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Motor Size \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003e540\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Power Type \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eElectric\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Radio \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eSold Separately\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Receiver \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eSold Separately\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Scale \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003e1\/10\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Servos \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eSold Separately\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Shock Type \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eOil-filled damper\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Speed Control \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eSold Separately\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Suspension \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eFully Independent Double Wishbone\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Vehicle Size \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eStandard\u003c\/td\u003e \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 font-weight-bold\"\u003e Vehicle Type \u003c\/div\u003e \u003cdiv class=\"col-6 fs-12 fs-lg-14 text-right text-lg-left\"\u003e \u003ctd\u003eOn-Road\u003c\/td\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e\n\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e","brand":"mySite","offers":[{"title":"Regular \/ One-size","offer_id":68080149856388,"sku":"dlz1794473458201","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/2526\/3236\/files\/F42D0B45-6BBE-1346-5AF9-8EC19A75C0CE.jpg?v=1794548426","url":"https:\/\/www.hhrctoys.shop\/products\/tamiya-trf421-chassis-kit","provider":"Horizon Hobby","version":"1.0","type":"link"}