{"product_id":"tk-01-05-8051","title":"Superhead 4V+R Bore Up Kit 106cc Scut Cylinder Monkey Gorilla","description":"\u003cp\u003e【SP Takegawa 01-05-8051 Super Head 4V+R Big Bore Kit 106cc SCUT Cylinder Monkey Gorilla Engine Parts Takegawa】\n\u003cbr\u003e■Product Description\n\u003cbr\u003eThis kit includes the Super Head 4V+R Cylinder Head Kit, SCUT Cylinder Kit, and 10\/15 Decomp Camshaft Kit.\u003c\/p\u003e\n\n\u003cp\u003e■Detailed Description\n\u003cbr\u003e●Features of Super Head 4V+R (1-Cam, 4-Valve)\n\u003cbr\u003eCompared to the large-diameter 2-valve of SP Takegawa's Super Head +R, the Super Head 4V+R uses two intake valves and two exhaust valves, further expanding the valve curtain area and achieving higher intake and exhaust efficiency than large-diameter 2-valve systems.\n\u003cbr\u003eIn addition, with the adoption of 4 valves, the cylinder head shape has been designed to balance the center plug, valve挟み角 (valve angle), combustion chamber shape, and port shape, enabling high output and achieving the sustained output characteristics at high RPM, which is the greatest feature of the Super Head.\n\u003cbr\u003eBy adopting a 1-cam, 4-valve system, it has been possible to achieve the lightest and most compact design possible, while condensing the performance as the strongest SOHC head.\n\u003cbr\u003e●New Super Head 4V+R Unit\n\u003cbr\u003eThe rounded cylinder head design suits the Monkey style well and enhances the custom image of the vehicle.\n\u003cbr\u003eIn addition, the barrel-polished die-cast head covers beautifully enhance the cylinder head.\n\u003cbr\u003e●Valve Features\n\u003cbr\u003eValve diameter: Intake: 21.5mm x 2 \/ Exhaust: 18.5mm x 2\n\u003cbr\u003eValve stem shaft diameter: 4.0mm for both intake and exhaust.\n\u003cbr\u003e●Valve Spring\n\u003cbr\u003eUneven pitch is used to prevent surging at high RPM.\n\u003cbr\u003e●IN\/EX Port Features\n\u003cbr\u003eThe port diameter is optimized to match SP Takegawa's 3D manifold.\n\u003cbr\u003eWhen installed simultaneously with the 3D manifold, it enables smooth intake from the carburetor to the combustion chamber without resistance, maximizing the performance of the cylinder head.\n\u003cbr\u003e●Adoption of Roller Rocker Arm\n\u003cbr\u003eBy adopting a roller rocker arm, the output performance of the Super Head +R is maximized, increasing output in the mid-to-high RPM range and maintaining output in the high RPM range, a characteristic of roller rocker arms.\n\u003cbr\u003eRoller rocker arms reduce frictional resistance with the camshaft that occurs in slipper-type rocker arms (OEM type).\n\u003cbr\u003eWith built-in roller bearings, the camshaft profile is smoothly followed from low to high RPM.\n\u003cbr\u003e●M8 Spark Plug\n\u003cbr\u003eDue to the optimized valve angle for 4 valves and the compact head, an M8 spark plug is adopted.\n\u003cbr\u003e●Hollow Camshaft with Oil Jet (Auto Decompression)\n\u003cbr\u003eAn oil line is provided in the center of the camshaft to guide oil to the cam sprocket.\n\u003cbr\u003eThis improves the durability and lubrication effect of the cam chain.\n\u003cbr\u003eIn addition, an oil jet passage is provided on the camshaft cam surface, allowing oil to be sprayed from the cam surface onto the rocker arm, effectively providing cooling and lubrication.\n\u003cbr\u003eThe camshaft journal features ball bearing support at both ends, reducing frictional resistance to the camshaft during startup and at low speeds.\n\u003cbr\u003eAuto Decompression Function: Even with large displacement engines, the engine can be started with light kicking force.\n\u003cbr\u003e●Piston\n\u003cbr\u003eA cast piston is adopted, and the piston skirt is molybdenum-coated to improve initial break-in.\n\u003cbr\u003e*For 124cc, a forged piston is available as an optional part.\n\u003cbr\u003e●Ceramic Plated Cylinder\n\u003cbr\u003eSCUT Cylinder (Patented structure) Bore diameter 57mm\n\u003cbr\u003eAn all-aluminum ceramic-plated cylinder with excellent durability, airtightness, and heat dissipation is adopted.\n\u003cbr\u003eThe cylinder comes standard with a temperature sensor mounting point.\n\u003cbr\u003eBy purchasing an SP Takegawa meter with a built-in thermometer or a thermometer, you can measure the cylinder temperature.\n\u003cbr\u003eThe SCUT cylinder is equipped with an oil jet mechanism.\n\u003cbr\u003eOil is continuously injected onto the inner wall of the cylinder, the piston skirt, and the inner wall of the piston during engine operation, enabling efficient lubrication and cooling.\n\u003cbr\u003eFor SCUT106cc SCUT Cylinder: M5 temperature sensor\u003c\/p\u003e\n\n\u003cp\u003e■Compatible Models\n\u003cbr\u003eHONDA\n\u003cbr\u003e12V Monkey Gorilla (Z50J-2000001～)(AB27-1000001～1899999)\u003c\/p\u003e\n\n\u003cp\u003e■Precautions\n\u003cbr\u003e*Images are for illustration purposes only. Includes products with different sizes and colors.\n\u003cbr\u003e*Product design and specifications are subject to change without notice. Please be aware.\n\u003cbr\u003e*This product is made to order, so cancellations after ordering are not possible.\n\u003cbr\u003e*As this product is made to order, it may take some time for delivery. Also, the manufacturer may discontinue the product or change specifications without prior notice. Please be aware.\u003c\/p\u003e","brand":"スペシャルパーツ武川(SPECIAL PARTS TAKEGAWA)","offers":[{"title":"Default Title","offer_id":47208274755819,"sku":"tk-01-05-8051","price":160147.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1021\/9499\/files\/tk-01-05-8051.jpg?v=1766738572","url":"https:\/\/bikeman.jp\/en\/products\/tk-01-05-8051","provider":"バイクマン","version":"1.0","type":"link"}