{"product_id":"kn-kn-cy59f-set","title":"59mm bore up + high cam + big valve head! Full set engine kit for Cygnus X and BW'S","description":"【KN Planning KN-CY59F-SET 59mm Big Bore + High Cam + Big Valve Head! Full Engine Kit for Cygnus X BW'S】\u003cbr\u003e\n ・KN Planning 59Φ Big Bore + High Cam + Big Valve Head! Full Engine Kit for [Cygnus X\/BW'S]\u003cbr\u003e\n\u003cbr\u003e\n 【Features】\u003cbr\u003e\n\u003cbr\u003e\n ・Finally here! No more hesitation! A complete engine kit!\u003cbr\u003e\n ・This is a full kit with a big valve + high cam head optimized for a 59Φ bore.\u003cbr\u003e\n ・Designed based on the genuine lower crankcase, so it's OK to just replace the normal upper crankcase! No need for troublesome height adjustments!\u003cbr\u003e\n ・Includes special roller rocker arms! Maximum friction reduction!!\u003cbr\u003e\n ・A thoughtful kit that includes tappet adjustment bolts \u0026 nuts and even rocker arm shafts!\u003cbr\u003e\n ・The ports are also significantly larger than genuine ones.\u003cbr\u003e\n ・Designed to extract power without additional machining.\u003cbr\u003e\n ・Camshaft profile also optimized for the kit.\u003cbr\u003e\n ・Forged piston adopted for improved durability.\u003cbr\u003e\n ・Top shape is high-compression type.\u003cbr\u003e\n 【Size】\u003cbr\u003e\n\u003cbr\u003e\n ～Cylinder～\u003cbr\u003e\n ・Bore diameter: 59Φ\u003cbr\u003e\n ・Aluminum plated sleeve cylinder\u003cbr\u003e\n ・Displacement: 158.2cc (at normal stroke)\u003cbr\u003e\n ～Piston～\u003cbr\u003e\n ・Forged aluminum piston\u003cbr\u003e\n ・High compression type\u003cbr\u003e\n ～Cylinder Head～\u003cbr\u003e\n ・Valve size: IN21mm\/EX19mm\u003cbr\u003e\n ・Combustion chamber volume: 13.8cc\u003cbr\u003e\n ・BIG Port\u003cbr\u003e\n ・Reinforced valve springs (silicon chrome alloy SWOSC-V)\u003cbr\u003e\n ～Camshaft～\u003cbr\u003e\n ・Duration: IN230°\/ EX230° (at 1mm lift)\u003cbr\u003e\n ・Lift amount: IN6.21mm \/ EX5.96mm\u003cbr\u003e\n ・Includes special roller rocker arm\u003cbr\u003e\n 【Compatibility】\u003cbr\u003e\n\u003cbr\u003e\n ・Cygnus X 1st generation domestic spec [5UA]\u003cbr\u003e\n, Taiwan spec [5TY]\u003cbr\u003e\n\u003cbr\u003e\n ・Cygnus X 2nd generation domestic spec [28S]\u003cbr\u003e\n, Taiwan spec [4C6・1CJ]\u003cbr\u003e\n\u003cbr\u003e\n ・Cygnus X 3rd generation domestic spec [1YP]\u003cbr\u003e\n, Taiwan spec [1MS]\u003cbr\u003e\n\u003cbr\u003e\n ・Cygnus X 4th generation domestic spec [BF9]\u003cbr\u003e\n, Taiwan spec [2UB]\u003cbr\u003e\n\u003cbr\u003e\n ・Cygnus X 5th generation domestic spec [B8S]\u003cbr\u003e\n, Taiwan spec [B2J]\u003cbr\u003e\n\u003cbr\u003e\n ・BW'S125 1st generation Taiwan spec [5S9]\u003cbr\u003e\n\u003cbr\u003e\n ・BW'S X 1st generation Taiwan spec [46P]\u003cbr\u003e\n\u003cbr\u003e\n ・BW'S 125 2nd generation domestic spec [BG1]\u003cbr\u003e\n\u003cbr\u003e\n ・BW'S R 2nd generation Taiwan spec [2JS]\u003cbr\u003e\n\u003cbr\u003e\n 【Set Contents\/Accessories】\u003cbr\u003e\n\u003cbr\u003e\n ・Special cylinder head (IN \u0026 EX valves, springs pre-assembled) ×1\u003cbr\u003e\n ・Special camshaft ×1\u003cbr\u003e\n ・Special rocker arm IN \u0026 EX (tappet adjustment nuts \u0026 bolts, rocker arm shafts included) ×1 set\u003cbr\u003e\n ・Special cylinder ×1\u003cbr\u003e\n ・Special forged piston kit (rings, pin, clips included) ×1 set\u003cbr\u003e\n ・Special head \u0026 base \u0026 tensioner gasket ×1\u003cbr\u003e\n ・Instruction manual\u003cbr\u003e\n 【Notes】\u003cbr\u003e\n\u003cbr\u003e\n *The head temperature sensor hole is M10×1.25. If not used, the hole must be plugged with a bolt or similar.\u003cbr\u003e\n *This product is a high-end tuning part. Please ensure assembly is carried out by an experienced mechanic.\u003cbr\u003e\n *In some cases, the chain guide may interfere due to individual differences; please deal with this by machining or other means.\u003cbr\u003e\n *The fixing bolt for the rocker arm pin plate is longer than genuine and may interfere with the rocker arm.\u003cbr\u003e\n *Please insert a washer into the bolt to avoid interference.\u003cbr\u003e\n *The image is for illustration purposes only, and the design and specifications of the products shown may change without prior notice. Please understand.","brand":"KN企画(KN KIKAKU)","offers":[{"title":"Default Title","offer_id":45477307416811,"sku":"kn-kn-cy59f-set","price":87780.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1021\/9499\/files\/4580630273761.jpg?v=1717796163","url":"https:\/\/bikeman.jp\/en\/products\/kn-kn-cy59f-set","provider":"バイクマン","version":"1.0","type":"link"}