{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"7fb76cabe144","name":"PISTON KIT 100MM HONDA CRF 450 02-14, ATHENA S4F10000005A 100MM BIG BORE","sku":"56-K115.100.PI","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":223.7,"formatted":"£223.70"},"summary":"ATHENA Forged Racing Piston Ø 99.95 mm HC for Athena Big Bore Cylinder S4F10000005A. This high compression piston kit is designed for Athena Big Bore cylinders and features piston rings that guarantee less friction with the cylinder for higher performance. The piston is made from a special high-performance aluminum alloy with high silicon content for reliability, resistance, and excellent performance. Some piston skirts are treated with a molybdenum disulfide coating to reduce friction and enhance performance and durability. The piston rings are produced in Japan with wear-resistant coatings (PVD or chromium nitride) to increase retention and durability. This kit contains the piston, pin, circlips, and piston rings. Technical features include: Big End Pin Diameter 19x10x51 mm, Bore Diameter 99.95 mm, Compression Height 24.00 mm, Compression Ratio 12.0:1, Displacement 450 cc, Net Weight 0.40 Kg, Number Of Segments 2, 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":"100mm"},{"label":"Variant Id","value":"252686"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K115_2E100_2EPI/94202bf9dffc8e97.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K115_2E100_2EPI/94202bf9dffc8e97.jpg"],"description":"ATHENA Forged Racing Piston Ø 99.95 mm HC for Athena Big Bore Cylinder S4F10000005A. This high compression piston kit is designed for Athena Big Bore cylinders and features piston rings that guarantee less friction with the cylinder for higher performance. The piston is made from a special high-performance aluminum alloy with high silicon content for reliability, resistance, and excellent performance. Some piston skirts are treated with a molybdenum disulfide coating to reduce friction and enhance performance and durability. The piston rings are produced in Japan with wear-resistant coatings (PVD or chromium nitride) to increase retention and durability. This kit contains the piston, pin, circlips, and piston rings. Technical features include: Big End Pin Diameter 19x10x51 mm, Bore Diameter 99.95 mm, Compression Height 24.00 mm, Compression Ratio 12.0:1, Displacement 450 cc, Net Weight 0.40 Kg, Number Of Segments 2, Piston Pin Type Biconical, Piston Type Forged.","descriptionMarkdown":"### Athena Forged Racing Piston Kit - Big Bore Upgrade\n\nElevate your motorcycle's performance with this Athena Forged Racing Piston Kit. Designed for big bore applications, this kit is crafted from a special high-performance aluminum alloy with a high silicon content, ensuring both exceptional reliability and increased resistance compared to OE pistons.\n\nAthena's pistons are manufactured using cutting-edge CNC machining tools, guaranteeing dimensional tolerances of less than 0.01 mm. The advanced design features a perfectly smooth profile for optimal airflow and efficient flame propagation. Some applications may include a molybdenum disulfide coating on the piston skirts, applied via screen printing, to further reduce friction and enhance performance and durability.\n\nEngineered in Italy by Athena's R&D department, each piston undergoes rigorous testing on engine dynamometer benches and on the track to validate its performance under extreme conditions. This high-compression piston is specifically designed for Athena Big Bore cylinder kits and features piston rings that minimize friction with the cylinder wall, leading to higher performance. The piston rings themselves are produced in Japan with wear-resistant coatings, such as PVD or chromium nitride, for increased lifespan and durability. These rings are designed to perfectly adapt to the cylinder liner even under low tangential load.\n\nThis comprehensive kit includes the piston, pin, circlips, and piston rings. All components are replaceable and interchangeable.\n\n**Key Technical Features:**\n\n \n- Piston Type: Forged\n \n- Bore Diameter: 99.95 mm\n \n- Compression Height: 24.00 mm\n \n- Compression Ratio: 12.0:1\n \n- Displacement: 450 cc\n \n- Number Of Segments: 2\n \n- Piston Pin Type: Biconical\n \n- Big End Pin Diameter: 19x10x51 mm\n \n- Net Weight: 0.40 Kg\n\n**Please Note:** Products designed for increased displacement and power beyond standard road legal limits are intended exclusively for competitive use. Athena disclaims all responsibility for any use of the product contrary to national regulations. Guarantees of compliance may not apply to products intended for competitive sports use or high-performance applications, unless a clear manufacturing defect is evident.","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRE F 450","cc":null,"notes":null,"years":"2005–2009"},{"make":"HONDA","model":"CRE F R 450","cc":null,"notes":null,"years":"2005–2007"},{"make":"HONDA","model":"CRE F X 450","cc":null,"notes":null,"years":"2005–2009"},{"make":"HONDA","model":"CRE MOTARD 450","cc":null,"notes":null,"years":"2002–2010"},{"make":"HONDA","model":"CRE X IE 450","cc":null,"notes":null,"years":"2007–2008"},{"make":"HONDA","model":"CRF 450R","cc":null,"notes":null,"years":"2002–2008"},{"make":"HONDA","model":"CRF 450X","cc":null,"notes":null,"years":"2005–2014"},{"make":"HONDA","model":"CRM F R 450","cc":null,"notes":null,"years":"2005–2007"},{"make":"HONDA","model":"CRM F X 450","cc":null,"notes":null,"years":"2005–2009"},{"make":"HONDA","model":"CRM X IE 450","cc":null,"notes":null,"years":"2007–2008"},{"make":"HONDA","model":"CRMF CREF X 450","cc":null,"notes":null,"years":"2005–2009"},{"make":"KAWASAKI","model":"KLX 450R","cc":null,"notes":null,"years":"2008–2017"},{"make":"KAWASAKI","model":"KX 450F","cc":null,"notes":null,"years":"2006–2008"}],"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-100mm-honda-crf-450-02-14-athena-s4f10000005a-100mm-big-bore","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/7fb76cabe144:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/7fb76cabe144:1"}},"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."]}}