{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"ab684eca08e7","name":"CYLINDER FULL KIT 102MM YAMAHA YZ 450 10-17, ATHENA P400485100054 500CC BIG BORE, (Piston included)","sku":"56-K165.102.CKA","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":684,"formatted":"£684.00"},"summary":"ATHENA Big Bore Cylinder Kit Ø 102 mm, 500 cc - P400485100054. This kit includes a high-quality aluminum cylinder with increased bore, a complete piston with pin and rings, and all necessary gaskets. The cylinder is coated with motor-nicksil, a nickel-silicon coating developed by Athena for smoothness and wear resistance. Athena's cylinder kits are engineered in Italy by their R&D Department. All components are developed to withstand high temperatures, pressures, and stresses, validated by Athena technicians. This cylinder kit can be installed without modifications to the engine crankcase. Technical features: Bore Diameter 102.00 mm, Compression Ratio 12.2:1, Displacement 500 cc, Net Weight 1.96 Kg. Partner Cross Reference: S4F102000040 Piston Kit 101,96, P400485160025 Gaskets Kit, S41316216 Rings.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Cylinder Kits"},{"label":"General Size","value":"102mm"},{"label":"Variant Id","value":"253007"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K165_2E102_2ECKA/4d585750cc121f69.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K165_2E102_2ECKA/4d585750cc121f69.jpg"],"description":"ATHENA Big Bore Cylinder Kit Ø 102 mm, 500 cc - P400485100054. This kit includes a high-quality aluminum cylinder with increased bore, a complete piston with pin and rings, and all necessary gaskets. The cylinder is coated with motor-nicksil, a nickel-silicon coating developed by Athena for smoothness and wear resistance. Athena's cylinder kits are engineered in Italy by their R&D Department. All components are developed to withstand high temperatures, pressures, and stresses, validated by Athena technicians. This cylinder kit can be installed without modifications to the engine crankcase. Technical features: Bore Diameter 102.00 mm, Compression Ratio 12.2:1, Displacement 500 cc, Net Weight 1.96 Kg. Partner Cross Reference: S4F102000040 Piston Kit 101,96, P400485160025 Gaskets Kit, S41316216 Rings.","descriptionMarkdown":"### Athena 500cc Big Bore Cylinder Kit - 102mm Bore\n\n Enhance your motorcycle's performance with the Athena Big Bore Cylinder Kit. This premium kit is engineered in Italy by Athena's dedicated R&D department, utilizing cutting-edge tools and extensive know-how to deliver superior results. The cylinder features a specialized Motor-Nicksil coating, a nickel-silicon blend developed by Athena for exceptional smoothness and optimal wear resistance.\n\n Athena Big Bore Kits are globally recognized for their reliability, durability, and significant performance gains. This kit guarantees an observable increase in power across the entire power curve while maintaining the reliability of original components.\n\n The complete kit includes a high-quality aluminum cylinder with an increased bore, a comprehensive piston kit (including piston pin and rings), and all necessary gaskets. Every component is meticulously designed to withstand extreme temperatures, pressures, and stresses, validated through rigorous bench and road testing by Athena technicians. This cylinder kit is designed for installation without requiring any modifications to the engine crankcase.\n\n**Key Features:**\n\n \n- Increased displacement to 500cc for enhanced power output.\n \n- 102mm Bore Diameter.\n \n- Motor-Nicksil coating for superior smoothness and wear resistance.\n \n- Designed to withstand high temperatures, pressures, and stresses.\n \n- Includes cylinder, complete piston kit, and all necessary gaskets.\n \n- No engine crankcase modifications required for installation.\n \n- Compression Ratio: 12.2:1\n \n- Net Weight: 1.96 Kg\n\n**Technical Specifications:**\n\n \n- Bore Diameter: 102.00 mm\n \n- Compression Ratio: 12.2:1\n \n- Displacement: 500 cc\n \n- Net Weight: 1.96 Kg\n\n**Included Components:**\n\n \n- Cylinder\n \n- Piston Kit\n \n- Gasket Kit\n \n- Piston Rings","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"WR 450F","cc":null,"notes":null,"years":"2016–2018"},{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2010–2019"},{"make":"YAMAHA","model":"YZ 450FX","cc":null,"notes":null,"years":"2016–2020"},{"make":"YAMAHA","model":"YZF 450","cc":null,"notes":null,"years":"2010–2017"}],"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-full-kit-102mm-yamaha-yz-450-10-17-athena-p400485100054-500cc-big-bore-","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/ab684eca08e7:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/ab684eca08e7:1"}},"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."]}}