{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"9f29ef55dfb4","name":"TOP END PISTON & GASKET KIT 78MM KTM EXC-F 250 20-23, ATHENA P5F0780093001B, SET B","sku":"56-T1013.B_ATH","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":225.8,"formatted":"£225.80"},"summary":"ATHENA Top End Piston Kit for 250cc engines. Includes forged 4-stroke piston with a 77.96 mm bore diameter and a top end gasket kit. Piston features a high-performance aluminum alloy with high silicon content, produced using CNC machines. Some pistons have a molybdenum disulfide coating to reduce friction. Kit includes two segments made in Japan with wear-resistant coatings (PVD or chromium nitride). Gasket kits are developed with extensive experience and use advanced laser cutting technology. Technical specifications: Big End Pin Diameter 16x9x38.2 mm, Compression Height 19.40 mm, Compression Ratio 13.9:1, Displacement 250 cc, Number Of Segments 2, Piston Pin Type Biconical, Piston Type Forged. Products intended for competitive use may not be applicable for warranty unless faulty.","attributes":[{"label":"Variant Id","value":"309812"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-T1013_2EB_5FATH/2a9289631deefb38.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-T1013_2EB_5FATH/2a9289631deefb38.jpg"],"description":"ATHENA Top End Piston Kit for 250cc engines. Includes forged 4-stroke piston with a 77.96 mm bore diameter and a top end gasket kit. Piston features a high-performance aluminum alloy with high silicon content, produced using CNC machines. Some pistons have a molybdenum disulfide coating to reduce friction. Kit includes two segments made in Japan with wear-resistant coatings (PVD or chromium nitride). Gasket kits are developed with extensive experience and use advanced laser cutting technology. Technical specifications: Big End Pin Diameter 16x9x38.2 mm, Compression Height 19.40 mm, Compression Ratio 13.9:1, Displacement 250 cc, Number Of Segments 2, Piston Pin Type Biconical, Piston Type Forged. Products intended for competitive use may not be applicable for warranty unless faulty.","descriptionMarkdown":"### Athena Top End Piston Kit for 250cc Motorcycles\n\nEnhance your motorcycle's engine performance and reliability with the Athena Top End Piston Kit. This comprehensive kit combines a high-performance forged piston with a complete top-end gasket set, designed for a perfect fit and optimal engine function.\n\nAthena meticulously designs, develops, and tests all piston technologies and materials in-house, ensuring they are engineered to work seamlessly with their compatible gasket sets. This integrated approach delivers superior performance and maximum engine reliability after a piston replacement.\n\n#### Key Features:\n\n \n- Forged Piston: Manufactured using state-of-the-art CNC machines with a special high-performance aluminum alloy, providing excellent strength, durability, and resistance.\n \n- Advanced Piston Skirt Treatment: Some piston skirts feature a molybdenum disulfide coating applied by screen printing to significantly reduce friction, boosting both performance and longevity.\n \n- High-Quality Piston Rings: Includes durable piston rings made in Japan with wear-resistant coatings (PVD or chromium nitride) for reduced cylinder friction and extended lifespan.\n \n- Reliable Gasket Set: Engineered with over 40 years of industry experience, Athena gasket kits are built on solid know-how and constant technological development, utilizing precise laser cutting and advanced materials for exceptional sealing.\n \n- Optimized Design: The piston's smooth profile promotes regular airflow and perfect flame propagation, contributing to smooth engine operation.\n \n- High Compression Ratio: Features a 13.9:1 compression ratio for increased power output.\n\n#### Technical Specifications:\n\n \n- Piston Type: Forged\n \n- Bore Diameter: 77.96 mm\n \n- Compression Height: 19.40 mm\n \n- Number of Piston Rings: 2\n \n- Piston Pin Type: Biconical\n \n- Big End Pin Diameter: 16x9x38.2 mm\n \n- Displacement: 250 cc\n\n**Please Note:** Products designed for displacement and power exceeding local road code regulations are intended exclusively for competitive use. Athena assumes no responsibility for any use of the product contrary to national regulations. Guarantees of compliance may not apply to products intended for competitive sports use or high-performance applications, except in cases of clear faultiness.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/top-end-piston-gasket-kit-78mm-ktm-exc-f-250-20-23-athena-p5f0780093001b-set-b","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/9f29ef55dfb4:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/9f29ef55dfb4:1"}},"market":{"country":"GB","countryName":"United Kingdom","locale":"en-gb","currency":"GBP","exchangeRateFromGbp":1,"pricesIncludeUkVat":true,"checkoutTax":null,"delivery":[{"name":"Standard","description":"Orders £15.00–£59.99 · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":4.99,"formatted":"£4.99"},"free":false,"minimumOrder":{"amount":0,"formatted":"£0.00","gbp":0},"weightGrams":null},{"name":"Standard","description":"Orders £60.00 and up · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":0,"formatted":"£0.00"},"free":true,"minimumOrder":{"amount":60,"formatted":"£60.00","gbp":60},"weightGrams":null}],"storeUrl":"https://www.2brosparts.com"},"navigate":{"start":"https://www.2brosparts.com/api/agent","search":"https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus}"},"howToBuy":{"summary":"Build a basket for the shopper and give them one checkout link. 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Each product also has links.buyOneNow, a ready link for one unit.","stateless":"Nothing is saved on our side. The items part of the URL is the whole basket: to change it, write the link again with the new list.","itemsFormat":"basketKey:quantity pairs joined by commas, e.g. 04f24aad4d68:2,7c1e9a0b3f2d:1. Quantity defaults to 1. Up to 50 products, 100 each.","country":"GB is the shopper's delivery country. Swap it for theirs (US, DE, FR…) in any URL; currency, tax and delivery follow it.","tips":["Put everything the shopper wants in one link.","Optionally add your name as a last path segment on checkout links (…/checkout/GB/<items>/claude) so the sale is credited to you.","The checkout link is for the shopper's browser. Do not open it yourself.","Signed-in trade account holders see their trade prices at checkout."]}}