{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"9ee40e3e2b99","name":"TOP END GASKET SET +5.60mm BIG BORE 72.00mm YAMAHA YZ 2T 250 1999 - 2025 CYLINDER WORKS 21009-G01","sku":"56-K156.72.GKCW","brand":"Cylinder Works","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":92.77,"formatted":"£92.77"},"summary":"Cylinder Works Big Bore Gasket Kit for +5.60mm big bore applications with a 72mm cylinder diameter. Compatible with Cylinder Works 21009-K01 Cylinder Kit. Includes head, base, exhaust, intake reed, and power valve cover gaskets for reliable top-end sealing and performance. Size over standard is +5.60 mm.","attributes":[{"label":"Variant Id","value":"322851"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K156_2E72_2EGKCW/791edbf97c7ac16c.png","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K156_2E72_2EGKCW/791edbf97c7ac16c.png","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K156_2E72_2EGKCW/58eb05523fe1f682.jpg"],"description":"Cylinder Works Big Bore Gasket Kit for +5.60mm big bore applications with a 72mm cylinder diameter. Compatible with Cylinder Works 21009-K01 Cylinder Kit. Includes head, base, exhaust, intake reed, and power valve cover gaskets for reliable top-end sealing and performance. Size over standard is +5.60 mm.","descriptionMarkdown":"### Cylinder Works Top End Gasket Set for Big Bore Applications\n\nThis Cylinder Works Top End Gasket Set is engineered for big bore motorcycle engine builds, specifically designed to complement the Cylinder Works 21009-K01 Cylinder Kit. It provides all the essential gaskets needed for a comprehensive top-end rebuild, ensuring optimal sealing and performance for modified engines. The kit is crucial for maintaining compression and preventing leaks in high-displacement applications.\n\n**Key Features:**\n\n\t\n- Specifically designed for +5.6mm big bore configurations.\n\t\n- Compatible with the Cylinder Works 21009-K01 Cylinder Kit.\n\t\n- Includes all necessary gaskets for the top end: head, base, exhaust, intake reed, and power valve cover.\n\t\n- Promotes reliable sealing and contributes to the overall performance and longevity of high-performance engines.\n\n**Specifications:**\n\n\t\n- Intended for cylinder diameters of 72 mm.\n\t\n- Designed for big bore cylinder kits.\n\t\n- Represents an increase of +5.60 mm over standard bore size.","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"YZ 250","cc":null,"notes":null,"years":"2003–2021"},{"make":"YAMAHA","model":"YZ 2T 250","cc":null,"notes":null,"years":"2003–2019"}],"collections":[],"links":{"page":"https://www.2brosparts.com/products/top-end-gasket-set-560mm-big-bore-7200mm-yamaha-yz-2t-250-1999-2025-cylinder-wor","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/9ee40e3e2b99:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/9ee40e3e2b99:1"}},"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."]}}