{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"310a8310b669","name":"CYLINDER KIT YAMAHA 2006-2009 YZF450 2007-2015 WR450F 480CC WORKS CYLINDER 21003-K01","sku":"56-K108.98.CKW","brand":"Cylinder Works","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":769.13,"formatted":"£769.13"},"summary":"The Cylinder Works +3 mm big bore complete cylinder kit (21003-K01) increases engine displacement to 478 cc during a full top-end rebuild. This direct bolt-on cylinder and piston package requires no replating or additional machining. The plated cylinder is designed for durability and wear resistance, and is supplied honed to specification for straightforward piston installation. The kit includes the cylinder, piston, wrist pin, two cir-clips, top ring, two oil rings, a spacer ring, cylinder head gasket, cylinder gasket, exhaust gasket, and case gasket. Bore increase is +3 mm. Engine displacement is 478 cc. Cylinder plating is Nickel Silicon Carbide. Manufacturer: The Cylinder Works. Part number: 21003-K01.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Cylinder Kits"},{"label":"Variant Id","value":"252630"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K108_2E98_2ECKW/791edbf97c7ac16c.png","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K108_2E98_2ECKW/791edbf97c7ac16c.png","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K108_2E98_2ECKW/89c7c4b8e38589bb.jpg"],"description":"The Cylinder Works +3 mm big bore complete cylinder kit (21003-K01) increases engine displacement to 478 cc during a full top-end rebuild. This direct bolt-on cylinder and piston package requires no replating or additional machining. The plated cylinder is designed for durability and wear resistance, and is supplied honed to specification for straightforward piston installation. The kit includes the cylinder, piston, wrist pin, two cir-clips, top ring, two oil rings, a spacer ring, cylinder head gasket, cylinder gasket, exhaust gasket, and case gasket. Bore increase is +3 mm. Engine displacement is 478 cc. Cylinder plating is Nickel Silicon Carbide. Manufacturer: The Cylinder Works. Part number: 21003-K01.","descriptionMarkdown":"### Cylinder Works 478cc Big Bore Complete Cylinder Kit\n\nThis Cylinder Works +3 mm big bore complete cylinder kit is engineered to enhance your motorcycle's performance. It serves as a direct bolt-on replacement for your existing cylinder and piston assembly, increasing engine displacement to 478 cc. This kit is designed for a full top-end rebuild and includes all necessary gaskets and internal components for a straightforward installation, eliminating the need for replating or additional machining.\n\n**Key Features:**\n\n\t\n- Increases engine displacement to 478 cc.\n\t\n- Direct bolt-on design for easy installation.\n\t\n- Requires no replating or additional machining.\n\t\n- Features a durable Nickel Silicon Carbide plated cylinder for enhanced wear resistance.\n\t\n- Cylinder is honed to specification for simple piston installation.\n\t\n- Complete kit ensures a full top-end rebuild.\n\n**Specifications:**\n\n\t\n- Manufacturer: The Cylinder Works\n\t\n- Part Number: 21003-K01\n\t\n- Bore Increase: +3 mm\n\t\n- Engine Displacement: 478 cc\n\t\n- Cylinder Plating: Nickel Silicon Carbide\n\n**Included Components:**\n\n\t\n- Cylinder\n\t\n- Piston\n\t\n- Wrist pin\n\t\n- Cir-clips (2)\n\t\n- Top ring\n\t\n- Oil rings (2)\n\t\n- Spacer ring\n\t\n- Cylinder head gasket\n\t\n- Cylinder gasket\n\t\n- Exhaust gasket\n\t\n- Case gasket","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"WR 450F","cc":null,"notes":null,"years":"2003–2015"},{"make":"YAMAHA","model":"WRF 450","cc":null,"notes":null,"years":"2007–2015"},{"make":"YAMAHA","model":"YFZ 450 Bill Balance Edition","cc":null,"notes":null,"years":"2010"},{"make":"YAMAHA","model":"YFZ 450R","cc":null,"notes":null,"years":"2009–2017"},{"make":"YAMAHA","model":"YFZ 450R Special Edition","cc":null,"notes":null,"years":"2010–2013"},{"make":"YAMAHA","model":"YFZ 450X","cc":null,"notes":null,"years":"2009–2015"},{"make":"YAMAHA","model":"YFZ 450X Special Edition","cc":null,"notes":null,"years":"2011"},{"make":"YAMAHA","model":"YFZ BILL BALANCE EDITION 450","cc":null,"notes":null,"years":"2010–2018"},{"make":"YAMAHA","model":"YFZ R 450","cc":null,"notes":null,"years":"2009–2018"},{"make":"YAMAHA","model":"YFZ R SPECIAL EDITION 450","cc":null,"notes":null,"years":"2010–2013"},{"make":"YAMAHA","model":"YFZ S 450","cc":null,"notes":null,"years":"2004–2011"},{"make":"YAMAHA","model":"YFZ X 450","cc":null,"notes":null,"years":"2009–2021"},{"make":"YAMAHA","model":"YFZ X SPECIAL EDITION 450","cc":null,"notes":null,"years":"2011–2018"},{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2003–2009"},{"make":"YAMAHA","model":"YZF 450","cc":null,"notes":null,"years":"2006–2009"}],"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-yamaha-2006-2009-yzf450-2007-2015-wr450f-480cc-works-cylinder-21003","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/310a8310b669:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/310a8310b669:1"}},"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. 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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."]}}