{"product_id":"honda-nxr125-bros-2003-56-5mm-13mm-piston-ring-gasket-kit","title":"Honda NXR125 Bros 2003 56.5mm 13mm Piston Ring Gasket Kit","description":"\u003ch2\u003eHonda NXR125 Bros 56.50mm Standard Piston, Ring \u0026amp; Gasket Kit\u003c\/h2\u003e\n\u003cp\u003eAftermarket top-end piston service kit for \u003cstrong\u003eHonda NXR125 Bros\u003c\/strong\u003e engines using Honda's \u003cstrong\u003eKGA-B00 13mm-pin piston family\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eVerified Fitment\u003c\/h3\u003e\n\u003cp\u003eHonda NXR125 Bros electric-start 2003 (NXR125ES3). Honda's genuine crankshaft\/piston fiche lists 13101-KGA-B00, 13011-KGA-B00 and 13111-KGA-B00 on this model.\u003c\/p\u003e\n\n\n\u003ch3\u003eKit Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1 × standard-size piston\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × piston ring set\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × 13mm gudgeon \/ wrist pin\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2 × piston-pin circlips\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × cylinder-head gasket\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × cylinder-base gasket\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2 × valve-stem seals\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe matching Honda KGA-B00 piston family is a \u003cstrong\u003e56.50mm standard-bore\u003c\/strong\u003e design with a \u003cstrong\u003e13mm piston pin\u003c\/strong\u003e. Compare the piston crown, pin diameter and gasket shapes with the original engine parts before assembly.\u003c\/p\u003e\n\n\n\u003ch3\u003eDetailed Product Description\u003c\/h3\u003e\n\u003cp\u003eStandard-bore top-end piston service kit for compatible Honda 125cc four-stroke engines using the \u003cstrong\u003eKGA-B00 13mm-pin piston family\u003c\/strong\u003e. It is intended for engine rebuilds where the cylinder remains at standard bore and the original piston, rings or top-end sealing components are worn or damaged.\u003c\/p\u003e\n\u003cp\u003eThe piston and rings should only be installed after the cylinder bore has been measured for diameter, taper, ovality and surface condition. A standard-size piston kit will not correct an excessively worn, scored or previously rebored cylinder.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Checks\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the engine uses Honda piston reference \u003cstrong\u003e13101-KGA-B00\u003c\/strong\u003e or an equivalent 56.50mm \/ 13mm-pin specification.\u003c\/li\u003e\n\u003cli\u003eMeasure the gudgeon pin: this kit uses a \u003cstrong\u003e13mm pin\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eConfirm the cylinder is standard bore and suitable for a 56.50mm piston.\u003c\/li\u003e\n\u003cli\u003eCompare piston crown profile, skirt cut-outs and ring-groove arrangement.\u003c\/li\u003e\n\u003cli\u003eCheck head and base gasket shapes against the engine before assembly.\u003c\/li\u003e\n\u003cli\u003eCheck piston-to-bore clearance and ring end gaps to the engine manufacturer's specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eClean the cylinder and ring grooves thoroughly before assembly. Fit the piston rings in their correct positions and orientation, stagger ring gaps as specified by the engine manufacturer, lubricate the piston and bore with clean engine oil, and fit new circlips securely into their grooves. Incorrect ring or circlip installation can cause serious engine damage.\u003c\/p\u003e\n\n\u003ch3\u003eDelivery \u0026amp; Returns\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFree UK delivery with an estimated 2–3 working-day service\u003c\/li\u003e\n\u003cli\u003e30-day returns, subject to the item being returned unused and in its original condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n\u003ch3\u003eHonda OE Cross-References\u003c\/h3\u003e\n\u003cp\u003eThis Moto Mania kit is supplied as \u003cstrong\u003eunbranded aftermarket\u003c\/strong\u003e. Honda part numbers are included as identification and fitment cross-references and are not claimed to be the manufacturer MPN of the supplied kit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e13101-KGA-B00\u003c\/strong\u003e – Honda standard piston\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13011-KGA-B00\u003c\/strong\u003e – Honda standard piston ring set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13111-KGA-B00\u003c\/strong\u003e – Honda piston pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13115-GN5-910\u003c\/strong\u003e – Honda 13mm piston-pin circlip\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12191-KGA-900\u003c\/strong\u003e – Honda cylinder-base gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12251-KY0-891\u003c\/strong\u003e – Honda cylinder-head gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAftermarket Manufacturer Cross-References\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMitaka 01.1202\u003c\/strong\u003e – 56.50mm KGA-B00 \/ 13mm-pin piston-kit reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTKRJ AH0770X \/ PH0830X\u003c\/strong\u003e – standard 56.50mm piston-kit \/ piston reference for Honda 13101-KGA-B00\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese branded references are supplied for comparison only. The Moto Mania kit itself is not represented as Mitaka or TKRJ branded.\u003c\/p\u003e\n\n","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":57389348487543,"sku":"01676-ENG","price":19.0,"currency_code":"SHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0528\/8771\/6007\/files\/IMG_0058-Photoroom.jpg?v=1786630339","url":"https:\/\/www.motomaniauk.com\/products\/honda-nxr125-bros-2003-56-5mm-13mm-piston-ring-gasket-kit","provider":"Moto Mania UK","version":"1.0","type":"link"}