{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"efc497d16797","name":"TOP END PISTON & GASKET KIT 77MM YAMAHA YZ 250F 19-22, ATHENA P5F0770212009C, SET C","sku":"56-T1007.C_ATH","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":233.38,"formatted":"£233.38"},"summary":"Athena Top End Piston Kit includes a forged 4-stroke piston and top end gasket kit. The piston has a bore diameter of 76.97 mm and is made from a special high-performance aluminum alloy with high silicon content. Some pistons feature a molybdenum disulfide coating on the skirts to reduce friction. The kit includes two Japanese-made piston rings with wear-resistant coatings for increased durability. Athena gasket kits are developed with extensive experience and manufactured to strict parameters, using laser cutting for precision and surface treatments for improved sealing. Technical features include: Big End Pin Diameter (mm) 16x9.5x38, Bore Diameter (mm) 76.97, Compression Height (mm) 20.20, Compression Ratio 13.5:1, Displacement (cc) 250, Number Of Segments 2, Piston Pin Type Standard, Piston Type Forged. For competitive use only.","attributes":[{"label":"Variant Id","value":"309795"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-T1007_2EC_5FATH/8387a6c5eb511f6c.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-T1007_2EC_5FATH/8387a6c5eb511f6c.jpg"],"description":"Athena Top End Piston Kit includes a forged 4-stroke piston and top end gasket kit. The piston has a bore diameter of 76.97 mm and is made from a special high-performance aluminum alloy with high silicon content. Some pistons feature a molybdenum disulfide coating on the skirts to reduce friction. The kit includes two Japanese-made piston rings with wear-resistant coatings for increased durability. Athena gasket kits are developed with extensive experience and manufactured to strict parameters, using laser cutting for precision and surface treatments for improved sealing. Technical features include: Big End Pin Diameter (mm) 16x9.5x38, Bore Diameter (mm) 76.97, Compression Height (mm) 20.20, Compression Ratio 13.5:1, Displacement (cc) 250, Number Of Segments 2, Piston Pin Type Standard, Piston Type Forged. For competitive use only.","descriptionMarkdown":"### Athena Top End Piston and Gasket Kit for Yamaha YZ 250F\n\nThis Athena Top End Piston Kit provides a perfectly matched set of a forged 4-stroke piston and a top-end gasket kit. Designed for optimal performance and reliability, this kit combines essential engine components that work harmoniously for superior results.\n\nAthena meticulously studies, develops, and tests all piston technologies and materials in-house. They also engineer the development of compatible gaskets, ensuring a perfectly tuned kit that offers high performance and maximum reliability after a piston replacement.\n\n#### Key Features:\n\n \n- Forged 4-Stroke Piston: Manufactured using state-of-the-art numerical control (CNC) machines with a special high-performance aluminum alloy and high silicon content for exceptional reliability and enhanced performance. Some piston skirts feature a molybdenum disulfide coating to further reduce friction.\n \n- High-Performance Piston Rings: Included piston rings are Made in Japan and feature wear-resistant coatings (PVD or chromium nitride) to minimize friction with the cylinder, increasing performance and durability.\n \n- Reliable Top End Gasket Kit: Athena gaskets are developed with extensive experience and continuous technological advancement. They are produced to strict manufacturer parameters, utilizing latest-generation lasers for precise cutting. Surface treatments are applied to address irregularities and improve sealing in critical areas.\n \n- Combined Kit Benefits: This integrated kit ensures perfect compatibility between the piston and gaskets, leading to improved sealing, enhanced performance, and increased durability.\n\n#### Technical Specifications:\n\n \n- Bore Diameter: 76.97 mm\n \n- Piston Type: Forged\n \n- Number Of Segments: 2\n \n- Compression Ratio: 13.5:1\n \n- Piston Pin Type: Standard\n \n- Big End Pin Diameter: 16x9.5x38 mm\n \n- Compression Height: 20.20 mm\n \n- Displacement: 250 cc","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/top-end-piston-gasket-kit-77mm-yamaha-yz-250f-19-22-athena-p5f0770212009c-set-c","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/efc497d16797:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/efc497d16797:1"}},"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."]}}