{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"81bee2a175f3","name":"TOP END PISTON & GASKET KIT 78MM KTM EXC-F 250 17-19, ATHENA P5F0780078001A, SET A","sku":"56-T1011.A_ATH","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":213,"formatted":"£213.00"},"summary":"ATHENA Top End Piston Kit includes a forged 4-stroke piston and top end gasket kit. Forged 4-stroke piston with Ø 77.95 mm bore diameter. Piston made of special high-performance aluminum alloy with high silicon content. Piston skirt treated with molybdenum disulfide coating to reduce friction. Includes two piston rings Made in Japan with wear-resistant coatings (PVD or chromium nitride). Gasket kits are based on experience and technological development, produced following strict manufacturer parameters. Technical features: Big End Pin Diameter 16x9x38.2 mm, Bore Diameter 77.95 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.","attributes":[{"label":"Variant Id","value":"309805"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-T1011_2EA_5FATH/458ce90ce8486f18.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-T1011_2EA_5FATH/458ce90ce8486f18.jpg"],"description":"ATHENA Top End Piston Kit includes a forged 4-stroke piston and top end gasket kit. Forged 4-stroke piston with Ø 77.95 mm bore diameter. Piston made of special high-performance aluminum alloy with high silicon content. Piston skirt treated with molybdenum disulfide coating to reduce friction. Includes two piston rings Made in Japan with wear-resistant coatings (PVD or chromium nitride). Gasket kits are based on experience and technological development, produced following strict manufacturer parameters. Technical features: Big End Pin Diameter 16x9x38.2 mm, Bore Diameter 77.95 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.","descriptionMarkdown":"### Athena 78mm Top End Piston and Gasket Kit\n\nThis Athena Top End Piston Kit combines a high-performance forged piston with a complete top-end gasket set, engineered for optimal engine performance and reliability. Athena meticulously develops and tests all piston technologies and materials in-house, alongside the complete design of compatible gaskets, ensuring a perfectly tuned kit for superior results.\n\n#### Key Features:\n\n \n- Forged 4-Stroke Piston: Manufactured using advanced numerical control (CNC) machines from a special high-performance aluminum alloy with high silicon content, providing OE-level reliability with enhanced resistance and performance.\n \n- Performance Enhancement: Some piston skirts feature a molybdenum disulfide coating applied via screen printing to reduce friction, boosting performance and durability.\n \n- Premium Piston Rings: Includes Japanese-made piston rings with wear-resistant coatings (PVD or chromium nitride) designed to minimize friction with the cylinder for higher performance and increased lifespan.\n \n- Reliable Gasket Set: Developed with over 40 years of industry experience, Athena gasket kits utilize extensive know-how, continuous technological development, and strict adherence to manufacturer parameters.\n \n- Precision Sealing: Latest generation lasers ensure precise cutting quality for gaskets, and Athena uses advanced surface treatments and material stress-relieving processes to guarantee excellent sealing, especially in critical areas.\n \n- Smooth Operation: The piston's perfectly smooth profile promotes regular airflow and optimal flame propagation for smoother engine operation.\n\n#### Technical Specifications:\n\n \n- Piston Bore Diameter: 77.95 mm\n \n- Compression Height: 19.40 mm\n \n- Compression Ratio: 13.9:1\n \n- Displacement: 250 cc\n \n- Number of Piston Rings: 2\n \n- Piston Pin Type: Biconical\n \n- Piston Type: Forged\n \n- Big End Pin Diameter: 16x9x38.2 mm","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/top-end-piston-gasket-kit-78mm-ktm-exc-f-250-17-19-athena-p5f0780078001a-set-a","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/81bee2a175f3:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/81bee2a175f3:1"}},"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. Every URL is a plain path (no query string) and a GET. Nothing is stored between calls.","checkoutLinkFormat":"https://www.2brosparts.com/api/agent/checkout/GB/{basketKey}:{quantity},{basketKey}:{quantity}","steps":["1. Find products: follow links in these responses, or fetch https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus} (e.g. https://www.2brosparts.com/api/agent/search/GB/brake+pads). Every product has a basketKey.","2. Optional check: https://www.2brosparts.com/api/agent/basket/GB/{basketKey}:{quantity},{basketKey}:{quantity} returns stock, totals per delivery option and the checkout link.","3. Give the shopper the checkout link. Opening it fills their basket with exactly these items (replacing what was there) and opens checkout for United Kingdom. They pay on 2brosparts.com through Stripe."],"noFetchNeeded":"You can write the checkout link yourself from basketKeys and quantities; nothing has to be fetched first. 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."]}}