{"product_id":"ngk-r0409b-10-5897","title":"Racing Plugs 5897","description":"【NGK R0409B-10 Racing Spark Plug 5897 ngk r0409b-10-5897】\u003cbr\u003e\n Racing spark plugs, recommended for two-wheelers and four-wheelers, come in various types designed for further performance improvement when used in racing, circuit driving, or with engines that have increased output due to tuning.\u003cbr\u003e\n Therefore, their shape differs from the manufacturer's standard plugs, and plug lifespan or low-speed performance may be slightly compromised.\u003cbr\u003e\n However, conversely, they are developed and designed to fully demonstrate performance even in extremely tuned engines and very harsh operating conditions, and are available in a wide range of heat ratings.\u003cbr\u003e\n Please select the appropriate plug for your engine to achieve full performance.\u003cbr\u003e\n Important points when choosing racing spark plugs\u003cbr\u003e\n Please find the screw size, plug type, and shape from the part number of your genuine plug or the plug you are currently using, and then select the corresponding type.\u003cbr\u003e\n Please refer to the manufacturer's website for guidance on how to choose the ignition end shape.\u003cbr\u003e\n The heat rating needs to be selected to maintain the plug's ignition end temperature within the optimal range, taking into account the rise in combustion temperature due to increased engine output and operating conditions.\u003cbr\u003e\n Simply increasing the heat rating alone does not improve engine performance.\u003cbr\u003e\n For mainly street use, numbers 7-8 are common, for track day specifications, 8-9, and for race specifications, 9-10 are used.\u003cbr\u003e\n The presence or absence of a resistor in the plug makes almost no difference nowadays due to advancements in ignition system performance.\u003cbr\u003e\n Resistor types will become the mainstream in the future.\u003cbr\u003e\n Conversely, non-resistor types may cause engine problems in some models of some vehicle types.\u003cbr\u003e\n In such cases, please be sure to use a resistor type.\u003cbr\u003e\n *The image is for illustration purposes only, and the design and specifications of the products shown may change without prior notice. Thank you for your understanding.","brand":"日本特殊陶業(NGK)","offers":[{"title":"Default Title","offer_id":45515918835947,"sku":"ngk-r0409b-10-5897","price":3000.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1021\/9499\/files\/ngk-rcp_d3cc52e4-a53b-4ca7-9e32-25a2bf8aec66.jpg?v=1729238333","url":"https:\/\/bikeman.jp\/en\/products\/ngk-r0409b-10-5897","provider":"バイクマン","version":"1.0","type":"link"}