{"product_id":"tk-01-05-5483","title":"S-Stage α Bore Up Kit 88cc Super Cub 50 Little Cub","description":"\u003cp\u003e【SP武川 01-05-5483 S-Stage α Bore Up Kit 88cc Super Cub 50 Little Cub Engine Parts Takegawa】\n\u003cbr\u003e■Product Description\n\u003cbr\u003eS-Stage α bore up kit 88cc with genuine ECU replacement type Hyper ECU.\n\u003cbr\u003eEnjoy powerful output performance not found in the stock engine.\n\u003cbr\u003eThe S-Stage α Bore Up Kit includes an S-Stage Bore Up Kit, Hyper ECU, large capacity fuel injector (G-4), air filter kit, spark plug, and 16T drive sprocket.\u003c\/p\u003e\n\n\u003cp\u003e■Detailed Description\n\u003cbr\u003e●S-Stage Bore Up Kit 88cc (camshaft included)\n\u003cbr\u003eThis bore up kit changes the displacement from the stock 50cc to 88cc by replacing the cylinder and piston.\n\u003cbr\u003eWhen installed simultaneously with the Hyper ECU, it achieves powerful output characteristics unlike the stock engine.\n\u003cbr\u003eThe cylinder uses an all-aluminum ceramic-plated cylinder with excellent durability, airtightness, and heat dissipation.\n\u003cbr\u003eBore diameter 52mm. Stroke 41.4mm (stock). Compression ratio 11.5:1.\n\u003cbr\u003eThe cylinder has an oil outlet for an oil cooler.\n\u003cbr\u003eWe recommend simultaneously installing an SP Takegawa oil cooler kit.\n\u003cbr\u003eIf an oil cooler is not installed, use the included oil plug bolt.\n\u003cbr\u003eThis oil plug bolt allows for the installation of an SP Takegawa M5 temperature sensor, so by purchasing a separate thermometer (Compact LED Thermometer with M5 Temperature Sensor), you can measure the cylinder temperature.\n\u003cbr\u003e●Sport Camshaft\n\u003cbr\u003e(For vehicles equipped with SP Takegawa bore up kits and Hyper ECU)\n\u003cbr\u003eThe sport camshaft adopts an optimal profile that maximizes the performance of the stock cylinder head when an S-Stage bore up kit is installed.\n\u003cbr\u003e●Air Filter\n\u003cbr\u003eRemove the stock air cleaner box and install it on the throttle body.\n\u003cbr\u003eThe stock leg shield can be installed as is.\n\u003cbr\u003eIntake efficiency is significantly improved, enabling higher output at high RPMs. Since the filter has a blow-by union, it can be connected to the blow-by hose using the included union.\n\u003cbr\u003e●Large Capacity Fuel Injector (G-4)\n\u003cbr\u003eThis is a large capacity fuel injector for vehicles equipped with SP Takegawa S-Stage Bore Up Kit, R-Stage Bore Up Kit, and Big Throttle Body.\n\u003cbr\u003eAs the intake air volume increases, the stock fuel injector will not provide enough fuel, so a large capacity injector is required.\n\u003cbr\u003eThis product may cause malfunction if installed on vehicles with engine specifications other than those specified.\n\u003cbr\u003e●Drive Sprocket 16T (Steel)\n\u003cbr\u003eAllows for a change in reduction ratio with increased output.\n\u003cbr\u003eIt has been lightened and heat-treated to increase durability.\n\u003cbr\u003e●Hyper ECU Rev Limit 10500rpm\n\u003cbr\u003eThe Hyper ECU controls everything, unlike conventional sub-controllers that use the stock ECU.\n\u003cbr\u003eSince installing a bore up kit or muffler parts will cause a significant deviation from the ideal air-fuel ratio, it is necessary to install a Hyper ECU and correct the fuel injection timing.\n\u003cbr\u003eThe Hyper ECU has multiple preset data tailored to SP Takegawa custom parts, so you can easily select, change, and modify settings data according to your engine specifications using the included switch.\n\u003cbr\u003eSettings can be made via switch operation without the need for a computer or smartphone, or downloading apps or software via internet connection.\n\u003cbr\u003eAdditionally, with 14 types of preset maps built-in, it supports a wide range of custom vehicles, such as vehicles with stock engine specifications equipped with SP Takegawa intake\/exhaust parts, or vehicles with SP Takegawa custom engine specifications equipped with SP Takegawa intake\/exhaust parts.\n\u003cbr\u003eFurthermore, it has a fuel adjustment function that allows for overall fuel adjustment increase\/decrease within the range of -9% to +9% (adjustable in 1% increments).\n\u003cbr\u003eThe top gear limiter can be released.\u003c\/p\u003e\n\n\u003cp\u003e■Compatible Models\n\u003cbr\u003eHONDA\n\u003cbr\u003eSuper Cub 50 (FI) (AA01-1700001~)\n\u003cbr\u003eLittle Cub (FI) (AA01-4000001~)\u003c\/p\u003e\n\n\u003cp\u003e■Notes\n\u003cbr\u003e*The image is for illustration purposes only. It includes products with different sizes and colors.\n\u003cbr\u003e*Product design and specifications are subject to change without notice. Please understand.\n\u003cbr\u003e*This product is exclusively for vehicles equipped with SP Takegawa custom parts. Do not use it in combination with engine parts from other manufacturers. This may cause engine malfunction or damage.\n\u003cbr\u003e*Absolutely do not install aftermarket H.I.D. kits, or LED headlights or fog lights from other manufacturers at the same time. Some ballasts\/inverters (voltage conversion devices) emit high-voltage noise that can adversely affect digital circuits, leading to product failure or malfunction.\n\u003cbr\u003e*Do not use aftermarket ignition devices (ignition coils or spark plug wires) as they may cause malfunctions or product failure due to increased radiated noise associated with increased ignition voltage.\n\u003cbr\u003e*Do not use aftermarket generators as they may cause failure due to insufficient power generation or differences in voltage waveforms.\n\u003cbr\u003ePlease refrain from installing high-power mobile radio equipment such as amateur radios, as it may cause malfunctions.\n\u003cbr\u003e*Do not install a headlight ON\/OFF switch at the same time.\n\u003cbr\u003e*This product is made to order, so cancellations after ordering are not possible.\n\u003cbr\u003e*Due to made-to-order production, it may take some time for delivery. Also, without prior notice, the manufacturer may discontinue the product or change its specifications. Please be aware of this in advance.\u003c\/p\u003e","brand":"スペシャルパーツ武川(SPECIAL PARTS TAKEGAWA)","offers":[{"title":"Default Title","offer_id":47208274002155,"sku":"tk-01-05-5483","price":111100.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1021\/9499\/files\/tk-01-05-5483.jpg?v=1766738434","url":"https:\/\/bikeman.jp\/en\/products\/tk-01-05-5483","provider":"バイクマン","version":"1.0","type":"link"}