{"product_id":"tk-01-05-0646","title":"Super Head 4V+R Combo Kit 145cc","description":"\u003cp\u003e【Takegawa 01-05-0646 Super Head 4V+R Combo Kit 145cc Monkey 125 Motorcycle Injection Controller TAKEGAWA】\n\u003cbr\u003e■Product Description\n\u003cbr\u003eThe Super Head 4V+R Combo Kit 145cc includes the Super Head 4V+R Bore Up Kit, FI Con TYPE-X (injection controller), Big Throttle Body Kit Φ34, Large Capacity Fuel Injector (G-1), Air Filter Kit, and #8 Spark Plug.\u003c\/p\u003e\n\n\u003cp\u003e【Super Head 4V+R Bore Up Kit 145cc】\n\u003cbr\u003e・Super Head 4V+R (1-cam 4-valve) Cylinder Head\n\u003cbr\u003eBy having two intake valves and two exhaust valves, the valve curtain area can be further expanded, enabling higher intake and exhaust efficiency than large-diameter 2-valve engines. In addition, the head is designed to balance center plug placement, valve angle, combustion chamber shape, and port shape for 4-valve conversion, allowing for higher output and achieving the sustained power characteristics at high RPMs that are a major feature of the Super Head. By adopting a 1-cam 4-valve system, it was possible to make it as lightweight and compact as possible, while condensing the performance as the strongest SOHC head.\u003c\/p\u003e\n\n\u003cp\u003e・Bearing-embedded roller rocker arm similar to genuine parts\n\u003cbr\u003eReduces friction resistance with the camshaft, and the roller bearings embedded in the rocker arm allow smooth tracking of the cam profile from low to high RPMs.\u003c\/p\u003e\n\n\u003cp\u003e・Valves\n\u003cbr\u003eIntake: 21.5mm x 2 \/ Exhaust: 18.5mm x 2 Valve stem shaft diameter: 4.0mm for both intake and exhaust.\u003c\/p\u003e\n\n\u003cp\u003e・Valve Springs\n\u003cbr\u003eUneven pitch (2-stage pitch) single valve springs are used to prevent surging at high RPMs. The port adopts the optimal port diameter to match the SP Takegawa Big Throttle Body manifold. By simultaneously installing the SP Takegawa Big Throttle Body manifold, a smooth and unobstructed intake effect from the big throttle body to the combustion chamber is possible, maximizing the performance of the cylinder head. The SP Takegawa original cylinder head shape blends well with the vehicle's style, enhancing the custom image of the vehicle. In addition, the inspection cover and L. cylinder head side cover are made of aluminum die-cast with a barrel polished finish. Furthermore, the oil tower on the R side of the cylinder head features machined aluminum with silver anodizing. The various covers and oil tower, which offer excellent dress-up effects, beautifully accentuate the cylinder head.\u003c\/p\u003e\n\n\u003cp\u003e・M8 Spark Plug\n\u003cbr\u003eAn M8 spark plug is adopted due to the optimal valve angle and compact head design resulting from the 4-valve conversion.\u003c\/p\u003e\n\n\u003cp\u003e・Auto Decompression Camshaft (10\/10D)\n\u003cbr\u003eThe camshaft is supported by ball bearings at both ends, reducing friction resistance in the camshaft journal section. The auto decompression mechanism reduces the kick-start force and the load on the transmission during engine startup, allowing for smooth engine starting even with large displacements.\u003c\/p\u003e\n\n\u003cp\u003e・Cylinder\n\u003cbr\u003eAdopts an aluminum iron sleeve cylinder. Bore diameter 54mm \/ Stroke 63.1mm (stock) \/ Compression ratio 12.0:1 The cylinder can be fitted with an SP Takegawa M5 temperature sensor, so cylinder temperature can be measured by purchasing a separate thermometer (Compact LED Thermometer with M5 temperature sensor).\u003c\/p\u003e\n\n\u003cp\u003e・Piston\n\u003cbr\u003eThe piston body is precisely machined from cast aluminum, achieving high rigidity while being lightweight.\n\u003cbr\u003e*When installing the Super Head 4V+R Bore Up Kit, simultaneous installation of the FI Con TYPE-X (injection controller) is required.\n\u003cbr\u003e*Since the displacement will be 125cc or more, it is not possible to ride on public roads under light motorcycle registration (Type 2). It is for competition use only.\u003c\/p\u003e\n\n\u003cp\u003e・Regarding the installation of the Super Head 4V+R Bore Up Kit\n\u003cbr\u003eBy installing the SP Takegawa bore-up kit, engine output and torque are significantly increased, leading to an increased load such as twisting and deflection on the crankshaft. SP Takegawa recommends simultaneously installing a crankshaft support adapter to reduce the load on the crankshaft. The crankshaft support adapter enhances crankshaft durability by suppressing twisting and deflection by adding ball bearing support to the end of the crankshaft flywheel side.\n\u003cbr\u003eCrankshaft Support Adapter for Monkey 125 (JB03\/JB05) 01-10-0150\u003c\/p\u003e\n\n\u003cp\u003e【Big Throttle Body Kit Φ34】\n\u003cbr\u003eThis product is an original \"Big Throttle Body Kit\" developed by SP Takegawa for the SP Takegawa Super Head 4V+R. It can be compactly installed around the engine without altering the vehicle's silhouette. Furthermore, no processing of the cowl or wiring is required for installation. An air filter with excellent intake efficiency is included.\n\u003cbr\u003e*Cannot be used with normal engines.\n\u003cbr\u003eBy adopting a Φ34mm big throttle body, the performance of the SP Takegawa Super Head 4V+R can be maximized, enabling increased output.\u003c\/p\u003e\n\n\u003cp\u003e・Large Capacity Fuel Injector (G-1)\n\u003cbr\u003eThis is a large capacity fuel injector for vehicles equipped with the SP Takegawa Super Head 4V+R Bore Up Kit and Big Throttle Body.\u003c\/p\u003e\n\n\u003cp\u003e【FI Con TYPE-X (Injection Controller)】\n\u003cbr\u003eThis is an injection controller that can be connected to the genuine ECU with a coupler. It has various MAPs preset for each engine specification, so basic operations are completed and driving is possible by simply selecting the MAP that matches your bore-up kit and throttle body specifications on your smartphone or PC. Based on existing MAPs, it offers enough content for advanced users to enjoy customizing settings and creating new MAPs. It can be connected to a PC or smartphone while the engine is running, and in addition to the very convenient tachometer screen and throttle opening graph screen for setting, engine temperature can also be monitored. It is equipped with a rev limit function. Can be installed simultaneously with the Honda genuine immobilizer alarm.\n\u003cbr\u003e*To use FI Con TYPE-X, a compatible PC or smartphone is required. If the conditions are not met, it cannot be used. Also, since software and applications need to be downloaded, an internet connection is required. The app will be charged. Please be aware of this in advance.\u003c\/p\u003e\n\n\u003cp\u003e■Compatible models\n\u003cbr\u003eMonkey 125 (JB03\/JB05-1000001～)\u003c\/p\u003e\n\n\u003cp\u003e■Precautions\n\u003cbr\u003e*The image is for illustrative purposes only. It includes products with different sizes and colors.\n\u003cbr\u003e*Product design and specifications may change without prior notice. Please understand.\u003c\/p\u003e","brand":"スペシャルパーツ武川(SPECIAL PARTS TAKEGAWA)","offers":[{"title":"Default Title","offer_id":47343953871083,"sku":"tk-01-05-0646","price":275000.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1021\/9499\/files\/tk-01-05-0646.jpg?v=1768539358","url":"https:\/\/bikeman.jp\/en\/products\/tk-01-05-0646","provider":"バイクマン","version":"1.0","type":"link"}