{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"38e6194bda2b","name":"CYLINDER FULL KIT 77MM YAMAHA YZ 250 01-07, ATHENA P400485100011 STD BORE, (piston included)","sku":"56-K103.77.K.A1","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":523.97,"formatted":"£523.97"},"summary":"ATHENA Standard Bore Cylinder Kit 77mm, 250cc (P400485100011). This cylinder kit is engineered in Italy by Athena's R&D Department and features a nickel-silicon coating for smoothness and wear resistance. The kit guarantees original spare part performance with extreme reliability and optimal smoothness due to the lightweight aluminum cylinder, nickel-silicon coated barrel, and a piston designed to reduce friction. Includes a high-quality aluminum cylinder with standard bore, complete piston with pin and rings, and all necessary gaskets. Components are developed to withstand high temperatures, pressures, and stresses, validated by Athena technicians. Installation requires no engine crankcase modifications. Bore Diameter: 77.00 mm. Compression Ratio: 12.5:1. Displacement: 250 cc. Net Weight: 1.76 Kg.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Cylinder Kits"},{"label":"Variant Id","value":"252590"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K103_2E77_2EK_2EA1/0e002b40f0f86994.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K103_2E77_2EK_2EA1/0e002b40f0f86994.jpg"],"description":"ATHENA Standard Bore Cylinder Kit 77mm, 250cc (P400485100011). This cylinder kit is engineered in Italy by Athena's R&D Department and features a nickel-silicon coating for smoothness and wear resistance. The kit guarantees original spare part performance with extreme reliability and optimal smoothness due to the lightweight aluminum cylinder, nickel-silicon coated barrel, and a piston designed to reduce friction. Includes a high-quality aluminum cylinder with standard bore, complete piston with pin and rings, and all necessary gaskets. Components are developed to withstand high temperatures, pressures, and stresses, validated by Athena technicians. Installation requires no engine crankcase modifications. Bore Diameter: 77.00 mm. Compression Ratio: 12.5:1. Displacement: 250 cc. Net Weight: 1.76 Kg.","descriptionMarkdown":"### Athena 77mm Standard Bore Cylinder Kit - 250cc\n\nThis Athena Standard Bore Cylinder Kit is engineered in Italy for optimal performance and reliability. Designed as a direct replacement for your original cylinder, it ensures the same performance characteristics while offering enhanced durability.\n\nThe cylinder features a lightweight aluminum construction with a proprietary motor-nicksil coating. This nickel-silicon coating, developed by Athena, provides exceptional smoothness and superior wear resistance, crucial for longevity under demanding conditions.\n\nThis comprehensive kit includes a high-quality aluminum cylinder with a 77mm standard bore, a complete piston assembly (including piston, pin, and rings), and all necessary gaskets for a complete installation. The piston is specifically designed to minimize friction, contributing to the overall efficiency of your engine.\n\nAthena's components undergo rigorous testing by their technicians on both dynamometers and during real-world road tests to validate their ability to withstand extreme temperatures, pressures, and stresses. This cylinder kit can be fitted without requiring any modifications to the engine crankcase.\n\n**Key Features:**\n\n \n- Standard bore diameter: 77.00 mm\n \n- Engine displacement: 250 cc\n \n- Compression ratio: 12.5:1\n \n- Smooth and wear-resistant motor-nicksil cylinder coating\n \n- Lightweight aluminum cylinder construction\n \n- Piston designed for reduced friction\n \n- Complete kit includes cylinder, piston assembly, and all required gaskets\n \n- Engineered and tested in Italy\n \n- No crankcase modifications required for installation","weightGrams":null,"fitments":[{"make":"GAS-GAS","model":"EC R 250","cc":null,"notes":null,"years":"2010–2015"},{"make":"YAMAHA","model":"WR 250F","cc":null,"notes":null,"years":"2001–2014"},{"make":"YAMAHA","model":"WRF 250","cc":null,"notes":null,"years":"2001–2013"},{"make":"YAMAHA","model":"YZ 250F","cc":null,"notes":null,"years":"2001–2013"},{"make":"YAMAHA","model":"YZF 250","cc":null,"notes":null,"years":"2001–2013"}],"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-77mm-yamaha-yz-250-01-07-athena-p400485100011-std-bore-piston-","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/38e6194bda2b:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/38e6194bda2b: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."]}}