{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"768b6acacc6e","name":"PISTON KIT 100MM HONDA CRF 450 09-16, ATHENA S4F100000180 490CC BIG BORE","sku":"56-K142.100.PI","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":217.82,"formatted":"£217.82"},"summary":"ATHENA Forged Racing Piston Kit, 100MM Bore Diameter, 450cc Displacement. Features a special high-performance aluminum alloy with high silicon content for reliability, resistance, and excellent performance. Some piston skirts have a molybdenum disulfide coating to reduce friction and enhance performance and durability. Piston rings are produced in Japan with wear-resistant coatings for increased strength and durability. This kit includes the piston, pin, circlips, and piston rings. All components are replaceable and interchangeable. Technical features: Big End Pin Diameter 19x10x45mm, Bore Diameter 99.96mm, Compression Height 29.00mm, Compression Ratio 12.5:1, Displacement 450cc, Net Weight 0.36Kg, Number Of Segments 2, Piston Pin Type Biconical, Piston Type Forged. Partner Cross Reference code: Piston Ring set S41316178.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"100.00mm"},{"label":"Variant Id","value":"252864"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock51804_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock51804_1.jpg"],"description":"ATHENA Forged Racing Piston Kit, 100MM Bore Diameter, 450cc Displacement. Features a special high-performance aluminum alloy with high silicon content for reliability, resistance, and excellent performance. Some piston skirts have a molybdenum disulfide coating to reduce friction and enhance performance and durability. Piston rings are produced in Japan with wear-resistant coatings for increased strength and durability. This kit includes the piston, pin, circlips, and piston rings. All components are replaceable and interchangeable. Technical features: Big End Pin Diameter 19x10x45mm, Bore Diameter 99.96mm, Compression Height 29.00mm, Compression Ratio 12.5:1, Displacement 450cc, Net Weight 0.36Kg, Number Of Segments 2, Piston Pin Type Biconical, Piston Type Forged. Partner Cross Reference code: Piston Ring set S41316178.","descriptionMarkdown":"### Athena Forged Piston Kit 100mm for Big Bore Cylinder\n\n This Athena forged racing piston kit is designed for Big Bore cylinder applications. Manufactured by Athena, a leader in motorcycle spare parts for over 40 years, these pistons are produced using advanced reverse extrusion and cutting-edge CNC machining tools to ensure precise dimensional tolerances.\n\n#### Key Features:\n\n \n- High-Performance Alloy: Made from a special high-silicon content aluminum alloy, providing OE-level reliability with enhanced resistance and excellent performance.\n \n- Precision Machining: CNC machined to dimensional tolerances of less than 0.01 mm for optimal fit and function.\n \n- Smooth Profile: Designed for a regular flow and perfect flame propagation.\n \n- Friction Reduction: Some piston skirts feature a molybdenum disulfide coating applied by screen printing to further reduce friction, boosting performance and durability.\n \n- Advanced Engineering: Developed with advanced technical solutions and high-quality standards, equal to or better than OE production.\n \n- Rigorous Testing: Each piston is engineered in Italy and tested on engine dynamometer benches and on track in extreme conditions.\n \n- Included Components: The kit contains the piston, pin, circlips, and piston rings. All components are replaceable and interchangeable.\n \n- Premium Piston Rings: Rings are produced in Japan with wear-resistant coatings (PVD or chromium nitride) for increased retention and durability, adapting perfectly to the cylinder liner even at low tangential loads.\n\n#### Technical Specifications:\n\n \n- Piston Type: Forged\n \n- Bore Diameter: 99.96 mm\n \n- Compression Height: 29.00 mm\n \n- Compression Ratio: 12.5:1\n \n- Number Of Segments: 2\n \n- Big End Pin Diameter: 19x10x45 mm\n \n- Piston Pin Type: Biconical\n \n- Net Weight: 0.36 Kg\n\n **Note:** Products intended for competitive sports use or high-performance applications may not be subject to the standard warranty unless a clear faultiness is present. Products manufactured with increased displacement and power beyond road code limits are exclusively for competitive use.","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRF 450R","cc":null,"notes":null,"years":"2009–2018"}],"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-450-09-16-athena-s4f100000180-490cc-big-bore","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/768b6acacc6e:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/768b6acacc6e: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."]}}