{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"6ce5c68d4d2c","name":"TOP END PISTON & GASKET KIT 77MM YAMAHA YZ 250F 19-25, ATHENA P5F0770212009A, SET A","sku":"56-T1007.A_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 a top end gasket kit. Pistons are made from a special high-performance aluminum alloy with high silicon content for reliability and durability. Some pistons feature a molybdenum disulfide coating to reduce friction. Piston rings, made in Japan, have wear-resistant coatings (PVD or chromium nitride) for increased performance and longevity. Athena gasket kits are developed with extensive experience and undergo constant technological advancement. Technical features: Big End Pin Diameter 16x9,5x38 mm, Bore Diameter 76.95 mm, Compression Height 20.20 mm, Compression Ratio 13.5:1, Displacement 250 cc, Number Of Segments 2, Piston Pin Type Standard, Piston Type Forged. This product is intended for competitive use only and Athena disclaims responsibility for any use contrary to national regulations.","attributes":[{"label":"Variant Id","value":"309793"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-T1007_2EA_5FATH/8387a6c5eb511f6c.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-T1007_2EA_5FATH/8387a6c5eb511f6c.jpg"],"description":"Athena Top End Piston Kit includes a forged 4-stroke piston and a top end gasket kit. Pistons are made from a special high-performance aluminum alloy with high silicon content for reliability and durability. Some pistons feature a molybdenum disulfide coating to reduce friction. Piston rings, made in Japan, have wear-resistant coatings (PVD or chromium nitride) for increased performance and longevity. Athena gasket kits are developed with extensive experience and undergo constant technological advancement. Technical features: Big End Pin Diameter 16x9,5x38 mm, Bore Diameter 76.95 mm, Compression Height 20.20 mm, Compression Ratio 13.5:1, Displacement 250 cc, Number Of Segments 2, Piston Pin Type Standard, Piston Type Forged. This product is intended for competitive use only and Athena disclaims responsibility for any use contrary to national regulations.","descriptionMarkdown":"### Athena Top End Piston and Gasket Kit for Yamaha YZ250F\n\nThis Athena Top End Piston Kit is a comprehensive solution designed to enhance the performance and reliability of your motorcycle's engine. It combines a high-quality forged piston with a complete top-end gasket set, ensuring perfect compatibility and optimal results.\n\n#### Key Features:\n\n\t\n- Forged 4-Stroke Piston: Manufactured using advanced reverse extrusion and CNC machining with a high-performance aluminum alloy for superior strength, durability, and performance.\n\t\n- Molybdenum Disulfide Coating: Select piston skirts feature a special coating to reduce friction, further boosting performance and longevity.\n\t\n- High-Quality Piston Rings: Includes two Japanese-made piston rings with wear-resistant coatings (PVD or chromium nitride) for reduced friction and extended durability.\n\t\n- Engineered Gasket Set: Developed with over 40 years of experience, Athena gaskets ensure maximum reliability and sealing. They are produced using state-of-the-art laser cutting technology and advanced material treatments for superior performance in critical areas.\n\t\n- Optimized for Performance: The piston's smooth profile promotes regular airflow and perfect flame propagation for improved combustion efficiency.\n\n#### Technical Specifications:\n\n\t\n- Piston Type: Forged\n\t\n- Bore Diameter: 76.95 mm\n\t\n- Compression Height: 20.20 mm\n\t\n- Compression Ratio: 13.5:1\n\t\n- Displacement: 250 cc\n\t\n- Number of Rings: 2\n\t\n- Piston Pin Type: Standard\n\t\n- Big End Pin Diameter: 16x9.5x38 mm","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/top-end-piston-gasket-kit-77mm-yamaha-yz-250f-19-25-athena-p5f0770212009a-set-a","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/6ce5c68d4d2c:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/6ce5c68d4d2c: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."]}}