{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"b15ea348dd64","name":"CYLINDER KIT YZF450 10-13 99mm, WORKS CYLINDER 21005-K01 BIG BORE","sku":"56-K138.099.CKW","brand":"Cylinder Works","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":792.84,"formatted":"£792.84"},"summary":"Complete Cylinder Kit (21005-K01) for Yamaha YZF450 (2010-2013). Increases displacement to 468cc with a 12.5:1 compression ratio and a +2mm bore. Direct bolt-on kit, no replating required. Features Nickel Silicon Carbide plating for durability and long service life. Honed to precise dimensions for effortless piston installation. Includes cylinder, top-end gasket set, and piston assembly (piston, rings, pin, and clips). Piston assembly: Vertex #23655. Cross-reference OEM Part Number: Yamaha 33D-11311-00-00. Manufacturer: Cylinder Works.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Cylinder Kits"},{"label":"General Size","value":"99mm"},{"label":"Variant Id","value":"283297"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K138_2E099_2ECKW/9ad5a07f0ad49029.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K138_2E099_2ECKW/9ad5a07f0ad49029.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K138_2E099_2ECKW/791edbf97c7ac16c.png"],"description":"Complete Cylinder Kit (21005-K01) for Yamaha YZF450 (2010-2013). Increases displacement to 468cc with a 12.5:1 compression ratio and a +2mm bore. Direct bolt-on kit, no replating required. Features Nickel Silicon Carbide plating for durability and long service life. Honed to precise dimensions for effortless piston installation. Includes cylinder, top-end gasket set, and piston assembly (piston, rings, pin, and clips). Piston assembly: Vertex #23655. Cross-reference OEM Part Number: Yamaha 33D-11311-00-00. Manufacturer: Cylinder Works.","descriptionMarkdown":"### Cylinder Kit for Yamaha YZF450\n\nUpgrade your Yamaha YZ450F with this +2mm Big Bore Complete Cylinder Kit. This kit increases the engine's displacement to 468cc, providing a significant performance boost. Engineered for direct bolt-on installation, it eliminates the need for specialized machining or replating, making it a straightforward upgrade for your motorcycle.\n\nThe cylinder is constructed with a Nickel Silicon Carbide plating, renowned for its exceptional durability and extended service life. It is honed to exact specifications, ensuring a precise fit for effortless piston installation. This comprehensive kit is designed to meet or exceed OEM standards in appearance and functionality, delivering a seamless integration with your existing engine components.\n\n**Key Features:**\n\n \n- Increased Displacement: Boosts engine capacity to 468cc with a +2mm bore.\n \n- High Compression Ratio: Features a 12.5:1 compression ratio for enhanced power output.\n \n- Direct Bolt-On: No machining or replating required for installation.\n \n- Durable Construction: Nickel Silicon Carbide plated cylinder for superior wear resistance.\n \n- Precise Honing: Cylinder walls are honed to exact tolerances for optimal piston fit.\n \n- Complete Kit: Includes all necessary parts for a full top-end installation.\n\n**Specifications:**\n\n \n- Displacement: 468cc\n \n- Bore Size: +2mm\n \n- Compression Ratio: 12.5:1\n \n- Piston Assembly: Vertex #23655\n\n**Included Components:**\n\n \n- Cylinder\n \n- Top-end gasket set\n \n- Piston assembly (piston, rings, pin, and clips)","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2010–2013"},{"make":"YAMAHA","model":"YZF 450","cc":null,"notes":null,"years":"2010–2013"}],"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-kit-yzf450-10-13-99mm-works-cylinder-21005-k01-big-bore","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/b15ea348dd64:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/b15ea348dd64:1"}},"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."]}}