{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"bf66b7c28968","name":"CYLINDER KIT YZF450 14-17 99mm, WORKS CYLINDER 21005-K02 BIG BORE","sku":"56-K165.099.CKW","brand":"Cylinder Works","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":793.76,"formatted":"£793.76"},"summary":"Cylinder Works +2mm Big Bore 99mm Cylinder Kit for the Yamaha YZ450F, WR450F, and YZ450FX increases displacement to 468cc. This direct bolt-on kit requires no re-plating and includes a matched Vertex piston for durability, performance, and reduced engine noise. Features include direct bolt-on installation with no additional machining required, Nickel Silicon Carbide plated for extended lifespan, and three options available: Standard Bore, Standard Bore High Compression, and Big Bore. The kit includes cylinder, piston, rings, pin, clips, and top-end gasket kit. Big bore cylinder kits do not require additional machine work unless specified. Replacement Vertex piston, rings, clips, and pins available separately. Manufactured in the U.S.A. Bore is 99mm (+2mm), displacement is 468cc, and compression ratio is 12.5:1. Uses Vertex Piston #23655.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Cylinder Kits"},{"label":"General Size","value":"99mm"},{"label":"Variant Id","value":"253005"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K165_2E099_2ECKW/791edbf97c7ac16c.png","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K165_2E099_2ECKW/791edbf97c7ac16c.png"],"description":"Cylinder Works +2mm Big Bore 99mm Cylinder Kit for the Yamaha YZ450F, WR450F, and YZ450FX increases displacement to 468cc. This direct bolt-on kit requires no re-plating and includes a matched Vertex piston for durability, performance, and reduced engine noise. Features include direct bolt-on installation with no additional machining required, Nickel Silicon Carbide plated for extended lifespan, and three options available: Standard Bore, Standard Bore High Compression, and Big Bore. The kit includes cylinder, piston, rings, pin, clips, and top-end gasket kit. Big bore cylinder kits do not require additional machine work unless specified. Replacement Vertex piston, rings, clips, and pins available separately. Manufactured in the U.S.A. Bore is 99mm (+2mm), displacement is 468cc, and compression ratio is 12.5:1. Uses Vertex Piston #23655.","descriptionMarkdown":"### Cylinder Works +2mm Big Bore Cylinder Kit for Yamaha YZF/WRF 450\n\nUpgrade your Yamaha's performance with the Cylinder Works +2mm Big Bore Cylinder Kit. This kit increases displacement to 468cc, delivering enhanced power and torque. Designed for a direct bolt-on installation, it requires no re-plating or additional machining, making installation straightforward. The Nickel Silicon Carbide plating ensures exceptional durability and an extended lifespan for the cylinder.\n\nThis comprehensive kit includes a matched Vertex piston, renowned for its performance and ability to reduce engine noise. With this kit, you get everything needed for a top-end rebuild, ensuring your motorcycle runs at its peak.\n\n**Key Features:**\n\n\t\n- Increases displacement to 468cc for improved performance.\n\t\n- Direct bolt-on design simplifies installation with no additional machining needed.\n\t\n- Nickel Silicon Carbide plated cylinder for superior durability and longevity.\n\t\n- Includes a high-quality Vertex piston for optimal performance and reduced noise.\n\t\n- Complete kit includes cylinder, piston, rings, pin, clips, and top-end gasket set.\n\t\n- Manufactured in the U.S.A.\n\n**Specifications:**\n\n\t\n- Bore: 99mm (+2mm)\n\t\n- Displacement: 468cc\n\t\n- Compression Ratio: 12.5:1\n\t\n- Uses Vertex Piston #23655","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"WR 450F","cc":null,"notes":null,"years":"2016–2018"},{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2010–2019"},{"make":"YAMAHA","model":"YZ 450FX","cc":null,"notes":null,"years":"2016–2020"},{"make":"YAMAHA","model":"YZF 450","cc":null,"notes":null,"years":"2010–2017"}],"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-yzf450-14-17-99mm-works-cylinder-21005-k02-big-bore","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/bf66b7c28968:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/bf66b7c28968:1"}},"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."]}}