{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"88338d09c33d","name":"PISTON KIT +4.00mm BIG BORE 82.00mm HONDA 2004 - 2015 CRF R X ATHENA S5F08200001A","sku":"56-K100.82.PIA","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":209.58,"formatted":"£209.58"},"summary":"Athena Forged Piston Ø 81.95mm designed for use with Athena Big Bore Cylinders. Manufactured using reverse extrusion and precision CNC machining, ensuring dimensional tolerances of less than 0.01mm. Made from a high-performance aluminum alloy with a high silicon content for excellent resistance and reliability comparable to OEM components. Features a smooth profile for optimal flame propagation and reduced friction, with molybdenum disulfide coating on select skirts for enhanced performance. Piston rings are produced in Japan with wear-resistant coatings for minimal friction and increased durability. Includes piston, pin, circlips, and piston rings. Bore Diameter: 81.95mm. Compression Height: 19.00mm. Compression Ratio: 13.1:1. Displacement: 280cc. Net Weight: 0.23 kg. Number of Segments: 2. Piston Pin Diameter: 16x10x44.5mm. Piston Type: Forged. Piston Pin Type: Standard. Cross-Reference OEM Part Numbers: Rings: S41316089.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"Variant Id","value":"252566"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K100_2E82_2EPIA/cd074af51708f78e.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K100_2E82_2EPIA/cd074af51708f78e.jpg"],"description":"Athena Forged Piston Ø 81.95mm designed for use with Athena Big Bore Cylinders. Manufactured using reverse extrusion and precision CNC machining, ensuring dimensional tolerances of less than 0.01mm. Made from a high-performance aluminum alloy with a high silicon content for excellent resistance and reliability comparable to OEM components. Features a smooth profile for optimal flame propagation and reduced friction, with molybdenum disulfide coating on select skirts for enhanced performance. Piston rings are produced in Japan with wear-resistant coatings for minimal friction and increased durability. Includes piston, pin, circlips, and piston rings. Bore Diameter: 81.95mm. Compression Height: 19.00mm. Compression Ratio: 13.1:1. Displacement: 280cc. Net Weight: 0.23 kg. Number of Segments: 2. Piston Pin Diameter: 16x10x44.5mm. Piston Type: Forged. Piston Pin Type: Standard. Cross-Reference OEM Part Numbers: Rings: S41316089.","descriptionMarkdown":"### Athena Forged Piston Kit +4.00mm Big Bore 82.00mm\n\nUpgrade your engine's performance with the Athena Forged Piston Kit. This kit features a precisely engineered forged piston with an 81.95mm bore diameter, designed to work seamlessly with Athena Big Bore Cylinders. Crafted from a high-performance aluminum alloy with a high silicon content, this piston delivers exceptional durability and reliability, comparable to OEM standards.\n\nThe piston undergoes precision CNC machining, ensuring dimensional tolerances of less than 0.01mm for optimal fit and function. Its smooth profile is engineered for efficient flame propagation and reduced friction, while select piston skirts feature a molybdenum disulfide coating to further enhance performance and longevity. The included piston rings, manufactured in Japan with advanced wear-resistant coatings, minimize friction and maximize durability.\n\n**Key Features:**\n\n \n- Forged piston with an 81.95mm bore diameter for a significant displacement increase.\n \n- Constructed from a high-performance aluminum alloy with high silicon content for superior strength and heat resistance.\n \n- Precision CNC-machined to achieve tight tolerances of under 0.01mm.\n \n- Molybdenum disulfide coating on select piston skirts reduces friction for improved efficiency.\n \n- Optimized for use with Athena Big Bore Cylinders.\n \n- Includes high-durability piston rings with wear-resistant coatings.\n \n- Complete kit includes piston, pin, circlips, and piston rings.\n\n**Specifications:**\n\n \n- Bore Diameter: 81.95mm\n \n- Compression Height: 19.00mm\n \n- Compression Ratio: 13.1:1\n \n- Displacement: 280cc\n \n- Net Weight: 0.23 kg\n \n- Number of Segments: 2\n \n- Piston Pin Diameter: 16x10x44.5mm\n \n- Piston Type: Forged\n \n- Piston Pin Type: Standard\n\n**Cross-Reference OEM Part Numbers:**\n\n \n- Rings: S41316089","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRE F R 250","cc":null,"notes":null,"years":"2004–2009"},{"make":"HONDA","model":"CRE F X 250","cc":null,"notes":null,"years":"2004–2010"},{"make":"HONDA","model":"CRF 250R","cc":null,"notes":null,"years":"2004–2013"},{"make":"HONDA","model":"CRF 250X","cc":null,"notes":null,"years":"2004–2017"}],"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-400mm-big-bore-8200mm-honda-2004-2015-crf-r-x-athena-s5f08200001a","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/88338d09c33d:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/88338d09c33d: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."]}}