{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"5c9931b798ef","name":"CYLINDER KIT 97MM YAMAHA YZ 450 20-22, ATHENA EC485-091 STD BORE, (Piston not included)","sku":"56-K312.97.CKA","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":334.8,"formatted":"£334.80"},"summary":"ATHENA Standard Bore Cylinder Kit Ø 97 mm, 450 cc with Gaskets required for installation (no piston included) - EC485-091. Bore Diameter: 97.00 mm. Displacement: 449 cc. The cylinder is coated with motor-nicksil, a nickel-silicon coating developed by Athena for smoothness and optimal wear resistance. All components are developed to withstand high temperatures, pressures, and stresses and have been validated by Athena technicians through bench and road tests. This cylinder kit can be installed without making any changes to the engine crankcase.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Cylinder Kits"},{"label":"General Size","value":"97.00"},{"label":"Variant Id","value":"309592"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K312_2E97_2ECKA/791edbf97c7ac16c.png","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K312_2E97_2ECKA/791edbf97c7ac16c.png"],"description":"ATHENA Standard Bore Cylinder Kit Ø 97 mm, 450 cc with Gaskets required for installation (no piston included) - EC485-091. Bore Diameter: 97.00 mm. Displacement: 449 cc. The cylinder is coated with motor-nicksil, a nickel-silicon coating developed by Athena for smoothness and optimal wear resistance. All components are developed to withstand high temperatures, pressures, and stresses and have been validated by Athena technicians through bench and road tests. This cylinder kit can be installed without making any changes to the engine crankcase.","descriptionMarkdown":"### Athena Standard Bore Cylinder Kit 97mm for Yamaha YZ 450\n\nEnhance your motorcycle's performance and reliability with the Athena Standard Bore Cylinder Kit. Designed and engineered in Italy, this high-quality cylinder kit is built to meet the demanding standards of modern motorcycles. Athena has invested over a decade in developing aftermarket cylinder replacement parts, focusing on improving production and performance for optimal results.\n\nThis cylinder kit features a 97mm bore diameter, providing a displacement of 449cc. The cylinder is coated with Athena's proprietary motor-nicksil, a nickel-silicon coating renowned for its exceptional smoothness and wear resistance. This advanced coating ensures longevity and consistent performance even under extreme conditions.\n\nThe Athena Standard Bore Cylinder Kit is designed to deliver the same performance as original spare parts, offering extreme reliability and optimal smoothness. The kit includes the high-quality aluminum cylinder and a top-end gasket kit required for installation. Please note that the piston is not included with this kit.\n\nAthena's cylinder kits and their components are globally recognized for their performance, durability, and reliability. Each part is meticulously engineered and tested by Athena's R&D Department using cutting-edge tools. The components in this kit have been rigorously validated through severe bench and road tests to withstand the highest temperatures, pressures, and stresses.\n\nA key advantage of this cylinder kit is that it can be installed without requiring any modifications to the engine crankcase, simplifying the installation process.\n\n#### Key Features:\n\n \n- Standard Bore Cylinder Kit for Yamaha YZ 450 models.\n \n- 97mm Bore Diameter for 449cc displacement.\n \n- Coated with Athena's motor-nicksil for superior smoothness and wear resistance.\n \n- Engineered and designed in Italy for high performance and reliability.\n \n- Includes high-quality aluminum cylinder and top-end gasket kit.\n \n- Piston not included.\n \n- Direct installation without engine crankcase modifications.\n \n- Built to withstand high temperatures, pressures, and stresses.","weightGrams":null,"fitments":[],"collections":[{"name":"Engine","url":"https://www.2brosparts.com/api/agent/collection/GB/engine"},{"name":"Cylinder Kits","url":"https://www.2brosparts.com/api/agent/collection/GB/cylinder-kits"}],"links":{"page":"https://www.2brosparts.com/products/cylinder-kit-97mm-yamaha-yz-450-20-22-athena-ec485-091-std-bore-piston-not-inclu","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/5c9931b798ef:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/5c9931b798ef: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."]}}