{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"5d7870f0455d","name":"PISTON KIT A 78MM KTM SX-F/XC-F 250 16-22, ATHENA S5F07800002A HUSQVARNA GAS GAS","sku":"56-W265.A.ATH","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":166.55,"formatted":"£166.55"},"summary":"ATHENA Forged Piston kit features a 77.96 mm bore diameter and 19.50 mm compression height. This 250cc piston kit has a 14.4:1 compression ratio and is designed for high-performance off-road motorcycles. The piston is made from a special high-performance aluminum alloy with high silicon content, ensuring reliability and increased resistance. Some piston skirts have a molybdenum disulfide coating to reduce friction and enhance performance and durability. The kit includes the piston, pin, circlips, and piston rings. Piston rings are produced in Japan with wear-resistant coatings for increased durability and reduced friction. Technical features include a 16x9x38.2 mm Big End Pin Diameter, 2 segments, and a standard Piston Pin Type. Net weight is 0.19 Kg. Products for competitive sports use or high-performance applications are intended exclusively for competitive use and Athena declines responsibility for any use contrary to national regulations.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"78mm"},{"label":"Variant Id","value":"301958"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock106380_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock106380_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock106380_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock106380_3.jpg"],"description":"ATHENA Forged Piston kit features a 77.96 mm bore diameter and 19.50 mm compression height. This 250cc piston kit has a 14.4:1 compression ratio and is designed for high-performance off-road motorcycles. The piston is made from a special high-performance aluminum alloy with high silicon content, ensuring reliability and increased resistance. Some piston skirts have a molybdenum disulfide coating to reduce friction and enhance performance and durability. The kit includes the piston, pin, circlips, and piston rings. Piston rings are produced in Japan with wear-resistant coatings for increased durability and reduced friction. Technical features include a 16x9x38.2 mm Big End Pin Diameter, 2 segments, and a standard Piston Pin Type. Net weight is 0.19 Kg. Products for competitive sports use or high-performance applications are intended exclusively for competitive use and Athena declines responsibility for any use contrary to national regulations.","descriptionMarkdown":"### Athena Forged Piston Kit\n\n Enhance your motorcycle's performance and durability with this Athena Forged Piston Kit. Crafted using advanced reverse extrusion and cutting-edge CNC machining, these pistons achieve dimensional tolerances of less than 0.01 mm. Made from a special high-performance aluminum alloy with high silicon content, they offer reliability equal to Original Equipment (OE) pistons while providing superior resistance and excellent performance.\n\n The piston's perfectly smooth profile ensures regular airflow and optimal flame propagation. Some piston skirts are further enhanced with a molybdenum disulfide coating, applied via screen printing, to reduce friction, boost performance, and increase durability. Athena engineers utilize advanced technical solutions and maintain the highest quality standards, ensuring performance and reliability that meets or exceeds OE production.\n\n Each piston, designed in Italy by the Athena R&D department, undergoes rigorous testing on engine dynamometer benches and on the track to validate performance in extreme conditions. This piston kit includes the piston, pin, circlips, and piston rings. All components are replaceable and interchangeable.\n\n The included piston rings are produced in Japan with wear-resistant coatings (PVD or chromium nitride) to increase durability. These rings perfectly adapt to the cylinder liner, even at low tangential loads, minimizing friction for higher performance.\n\n#### Key Features:\n\n \n- Forged Piston Type\n \n- High-performance aluminum alloy with high silicon content\n \n- Precision CNC machining for tight tolerances\n \n- Molybdenum disulfide coating on some piston skirts to reduce friction\n \n- Includes piston, pin, circlips, and piston rings\n \n- Piston rings made in Japan with wear-resistant coatings\n \n- Designed for superior performance and durability\n\n#### Technical Specifications:\n\n \n- Big End Pin Diameter: 16x9x38,2 mm\n \n- Bore Diameter: 77.96 mm\n \n- Compression Height: 19.50 mm\n \n- Compression Ratio: 14.4:1\n \n- Displacement: 250 cc\n \n- Net Weight: 0.19 Kg\n \n- Number Of Segments: 2\n \n- Piston Pin Type: Standard","weightGrams":null,"fitments":[{"make":"GAS-GAS","model":"EX F 250","cc":null,"notes":null,"years":"2021–2023"},{"make":"GAS-GAS","model":"MC F 250","cc":null,"notes":null,"years":"2021–2023"},{"make":"HUSQVARNA","model":"FC 250","cc":null,"notes":null,"years":"2016–2022"},{"make":"HUSQVARNA","model":"FE 250","cc":null,"notes":null,"years":"2016–2019"},{"make":"KTM","model":"250 EXC-F","cc":null,"notes":null,"years":"2016–2019"},{"make":"KTM","model":"250 SX-F","cc":null,"notes":null,"years":"2016–2022"},{"make":"KTM","model":"250 XC-F","cc":null,"notes":null,"years":"2016–2021"}],"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-a-78mm-ktm-sx-fxc-f-250-16-22-athena-s5f07800002a-husqvarna-gas-gas","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/5d7870f0455d:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/5d7870f0455d: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."]}}