{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"ceaba6915097","name":"PISTON KIT B 97MM YAMAHA YZ 450F 18-19, ATHENA S5F09700004B","sku":"56-W4965.B.ATH","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":190.48,"formatted":"£190.48"},"summary":"ATHENA Forged Piston Kit B 97MM for Athena and OE Cylinder. Features a high-performance aluminum alloy with high silicon content for reliability, resistance, and excellent performance. Cutting-edge CNC machining ensures dimensional tolerances of less than 0.01 mm. Some pistons include a molybdenum disulfide coating on the skirt to reduce friction, enhance performance, and improve durability. Piston rings are produced in Japan with wear-resistant coatings (PVD or chromium nitride) for increased retention and durability. Kit includes piston, pin, circlips, and piston rings. Technical features: Big End Pin Diameter 18x10x48.8mm, Bore Diameter 96.96mm, Compression Height 24.00mm, Compression Ratio 12.8:1, Displacement 450cc, Net Weight 0.35Kg, Number Of Segments 3, Piston Pin Type Biconical, Piston Type Forged.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"97mm"},{"label":"Variant Id","value":"295984"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock100314_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock100314_1.jpg"],"description":"ATHENA Forged Piston Kit B 97MM for Athena and OE Cylinder. Features a high-performance aluminum alloy with high silicon content for reliability, resistance, and excellent performance. Cutting-edge CNC machining ensures dimensional tolerances of less than 0.01 mm. Some pistons include a molybdenum disulfide coating on the skirt to reduce friction, enhance performance, and improve durability. Piston rings are produced in Japan with wear-resistant coatings (PVD or chromium nitride) for increased retention and durability. Kit includes piston, pin, circlips, and piston rings. Technical features: Big End Pin Diameter 18x10x48.8mm, Bore Diameter 96.96mm, Compression Height 24.00mm, Compression Ratio 12.8:1, Displacement 450cc, Net Weight 0.35Kg, Number Of Segments 3, Piston Pin Type Biconical, Piston Type Forged.","descriptionMarkdown":"### Athena Forged Piston Kit B - 97mm for Yamaha YZ 450F\n\n This Athena Piston Kit is engineered for high-performance off-road motorcycles, featuring a forged construction for superior strength and durability. Crafted using advanced CNC machining, these pistons ensure precise dimensional accuracy, maintaining tolerances of less than 0.01 mm. They are made from a special aluminum alloy with a high silicon content, offering reliability equivalent to Original Equipment (OE) pistons while enhancing resistance and performance. The smooth piston profile promotes regular flow and optimal flame propagation.\n\n Some piston skirts are treated with a molybdenum disulfide coating applied via screen printing. This treatment further reduces friction, boosting both performance and the piston's lifespan. Athena engineers utilize cutting-edge technical solutions and maintain the highest quality standards, often exceeding OE specifications, to guarantee exceptional performance and reliability.\n\n Each piston is meticulously designed by Athena's R&D department in Italy. They undergo rigorous testing on engine dynamometer benches under progressive stress loads and are further validated on the track in the most demanding conditions. This kit includes the piston, pin, circlips, and piston rings, all of which are replaceable and interchangeable. The piston rings are produced in Japan with wear-resistant coatings (PVD or chromium nitride) to increase durability and longevity, ensuring they adapt perfectly to the cylinder liner even at low tangential loads for reduced friction and higher performance.\n\n### Key Features:\n\n \n- Forged Piston Type: Provides enhanced strength and durability.\n \n- High-Performance Aluminum Alloy: Features high silicon content for excellent resistance and performance.\n \n- Precision Machining: CNC machined to ensure dimensional tolerances of less than 0.01 mm.\n \n- Molybdenum Disulfide Coating: Applied to some piston skirts to reduce friction and improve durability.\n \n- OE Quality Standards: Engineered to meet or exceed Original Equipment specifications.\n \n- Complete Kit: Includes piston, pin, circlips, and piston rings.\n \n- High-Quality Piston Rings: Made in Japan with wear-resistant coatings for extended life.\n\n### Technical Specifications:\n\n \n- Bore Diameter: 96.96 mm\n \n- Compression Height: 24.00 mm\n \n- Compression Ratio: 12.8:1\n \n- Number of Segments: 3\n \n- Piston Pin Type: Biconical\n \n- Big End Pin Diameter: 18x10x48.8 mm","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"WR 450F","cc":null,"notes":null,"years":"2019–2020"},{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2018–2019"},{"make":"YAMAHA","model":"YZ 450FX","cc":null,"notes":null,"years":"2019–2020"},{"make":"YAMAHA","model":"YZF 450","cc":null,"notes":null,"years":"2018–2019"},{"make":"YAMAHA","model":"YZF X 450","cc":null,"notes":null,"years":"2019"}],"collections":[{"name":"Engine","url":"https://www.2brosparts.com/api/agent/collection/GB/engine"},{"name":"Pistons & Kits","url":"https://www.2brosparts.com/api/agent/collection/GB/pistons-kits"}],"links":{"page":"https://www.2brosparts.com/products/piston-kit-b-97mm-yamaha-yz-450f-18-19-athena-s5f09700004b","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/ceaba6915097:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/ceaba6915097:1"}},"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."]}}