{"product_id":"kitaco-88cc-big-bore-up-kit-suitable-for-use-with-z50j-6v-st50-dax-6v","title":"Kitaco 88cc BIG Bore-Up Kit suitable for use with Z50J 6V, ST50 Dax 6V","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKitaco 88cc STD-Type2 Big Bore Kit with Aluminum Cylinder (Part No. 214-1013202)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis kit is compatible with the following Honda models and frame number ranges:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonkey \/ Gorilla\u003c\/strong\u003e: Z50J-1000001～1323946 and Z50J-1323947～1510400\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDax 50 (6V)\u003c\/strong\u003e: ST50-1000001～6299999 and ST50-6300022～6346265\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChaly 50\u003c\/strong\u003e: CF50-1000001～2899999\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCD50\u003c\/strong\u003e: CD50-1100001～1330600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDax 70 (6V)\u003c\/strong\u003e and \u003cstrong\u003eChaly 70 (6V)\u003c\/strong\u003e (ST70 \/ CF70 models)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eThis reliable \u003cstrong\u003e88cc STD-Type2 Big Bore Kit\u003c\/strong\u003e from Kitaco is engineered for Honda Monkey, Gorilla, and the compatible models listed above. It delivers strong, usable power and torque improvements throughout the RPM range while remaining well-suited for everyday street riding.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKit Contents \u0026amp; Performance Features\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThe kit includes a high-durability cylinder head featuring an optimized combustion chamber, improved port shapes, larger valves, a high-lift camshaft, and a high-compression cast piston. These components work together to enhance airflow and combustion efficiency, resulting in noticeably better low- to mid-range torque and improved top-end performance compared to the stock setup.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eKey specifications:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eDisplacement: 88cc\u003c\/li\u003e\n\u003cli\u003eBore: φ52mm\u003c\/li\u003e\n\u003cli\u003eStroke: 41.4mm (retains the stock crankshaft)\u003c\/li\u003e\n\u003cli\u003ePre-assembled valves in the cylinder head\u003c\/li\u003e\n\u003cli\u003eHigh-compression piston matched to the combustion chamber\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eCylinder Construction: Aluminum with Cast Iron Sleeve\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThis version features Kitaco’s standard \u003cstrong\u003ealuminum cylinder with a cast iron sleeve\u003c\/strong\u003e inserted into the bore. This is a proven, cost-effective design widely used in performance upgrades.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eBenefits of the Aluminum + Cast Iron Sleeve Cylinder:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent durability\u003c\/strong\u003e: The cast iron sleeve provides a hard, wear-resistant surface that stands up well to the piston rings, offering reliable long-term performance in a big bore setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGood heat management\u003c\/strong\u003e: The aluminum outer cylinder helps with heat dissipation while the iron sleeve maintains excellent strength and stability under operating temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven reliability\u003c\/strong\u003e: This traditional sleeved design has a strong track record in Honda Monkey-family engines and is ideal for riders seeking solid performance without the premium price of the hard chrome version.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreat value\u003c\/strong\u003e: It delivers all the power gains and engine improvements of the Type2 kit at a more accessible price point.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eThis kit is an outstanding choice for enthusiasts looking for a significant power increase with dependable, everyday usability. For best results, we recommend using high-quality engine oil, correct carburetor jetting, and following proper break-in procedures. Professional installation is advised, and always verify compatibility with your specific model and year.\u003c\/p\u003e","brand":"Kitaco","offers":[{"title":"Default Title","offer_id":55959720493443,"sku":"214-1013202","price":300.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0202\/7464\/files\/214-1013202.jpg?v=1752005249","url":"https:\/\/www.shirebikes.co.uk\/products\/kitaco-88cc-big-bore-up-kit-suitable-for-use-with-z50j-6v-st50-dax-6v","provider":"Shire Bikes - Parts \u0026 Accessories suitable for Monkey Bikes","version":"1.0","type":"link"}