{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"2c568fe3fc7b","name":"CYLINDER KIT BIG BORE 2004-2013 YAMAHA YFZ450 WORKS CYLINDER 23001-K01","sku":"56-K133.98.CKW1","brand":"Cylinder Works","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":768.23,"formatted":"£768.23"},"summary":"The +3mm Big Bore Complete Cylinder Kit offers increased displacement without additional machining. It is designed to look similar to OEM components and features Nickel Silicon Carbide plating with exact honing for easy piston installation. This kit includes a +3mm big bore cylinder, piston, ring set, two circlips, gasket set, and piston pin. Displacement is 468cc for 2004-2005 models and 478cc for 2006-2012 models. Compression is standard. Compatible piston is Vertex #23403.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Cylinder Kits"},{"label":"Variant Id","value":"283294"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K133_2E98_2ECKW1/791edbf97c7ac16c.png","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K133_2E98_2ECKW1/791edbf97c7ac16c.png"],"description":"The +3mm Big Bore Complete Cylinder Kit offers increased displacement without additional machining. It is designed to look similar to OEM components and features Nickel Silicon Carbide plating with exact honing for easy piston installation. This kit includes a +3mm big bore cylinder, piston, ring set, two circlips, gasket set, and piston pin. Displacement is 468cc for 2004-2005 models and 478cc for 2006-2012 models. Compression is standard. Compatible piston is Vertex #23403.","descriptionMarkdown":"### Cylinder Works Big Bore Cylinder Kit - Enhanced Yamaha YFZ450 Performance\n\nUpgrade your Yamaha YFZ 450's performance with this Big Bore Complete Cylinder Kit. Engineered by Cylinder Works for the 2004-2013 models, this kit offers a significant displacement increase as a direct bolt-on solution, eliminating the need for additional machining or replating. The kit is designed to maintain a factory appearance while providing superior durability and performance.\n\nKey features include advanced Nickel Silicon Carbide plating for exceptional cylinder longevity and precise honing for effortless piston installation. This kit provides a substantial performance boost without compromising the original look of your ATV.\n\n**Key Features:**\n\n\t\n- Direct bolt-on design for straightforward installation.\n\t\n- No replating is required, simplifying the upgrade process.\n\t\n- Durable Nickel Silicon Carbide plating ensures extended cylinder life.\n\t\n- Precision honed to exact dimensions for smooth piston movement.\n\t\n- Offers a big bore upgrade with no machining needed for most applications.\n\t\n- Complete kit includes all essential components for a full installation.\n\n**Included Components:**\n\n\t\n- Big bore cylinder (+3mm)\n\t\n- Piston\n\t\n- Ring set\n\t\n- Two circlips\n\t\n- Complete gasket set\n\t\n- Piston pin\n\n**Specifications:**\n\n\t\n- Displacement: 468cc (for 2004-2005 models) or 478cc (for 2006-2012 models)\n\t\n- Compression: Standard\n\t\n- Compatible Piston: Vertex #23403","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"YFZ 450","cc":null,"notes":null,"years":"2004–2013"},{"make":"YAMAHA","model":"YFZ 450S","cc":null,"notes":null,"years":"2004–2011"},{"make":"YAMAHA","model":"YFZ S 450","cc":null,"notes":null,"years":"2004–2011"}],"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-big-bore-2004-2013-yamaha-yfz450-works-cylinder-23001-k01","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/2c568fe3fc7b:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/2c568fe3fc7b: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."]}}