{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"ae5a68b32620","name":"YAMAHA YZF 250 2008 - 2013 77mm HIGH COMPRESSION CYLINDER KIT 13.9:1","sku":"CW.20002-K03HC","brand":"Cylinder Works","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":769.5,"formatted":"£769.50"},"summary":"Cylinder Works High Compression Cylinder Kit 77mm 13.9:1. Kit includes handmatched Vertex piston, top end gasket set, and precision honed Cylinder Works cylinder. Stock appearance, nickel silicon carbide plated. OEM quality without the OEM price. Pistons are hand matched for precision fitment.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yzf-250-2008-2013-77mm-high-compression-cylinder-kit-13.9-1-6995-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yzf-250-2008-2013-77mm-high-compression-cylinder-kit-13.9-1-6995-p.jpg"],"description":"Cylinder Works High Compression Cylinder Kit 77mm 13.9:1. Kit includes handmatched Vertex piston, top end gasket set, and precision honed Cylinder Works cylinder. Stock appearance, nickel silicon carbide plated. OEM quality without the OEM price. Pistons are hand matched for precision fitment.","descriptionMarkdown":"### High Compression Cylinder Kit 77mm\n\nUpgrade your engine performance with the Cylinder Works high compression cylinder kit. Designed as a direct replacement for your original equipment, this kit offers a significant power increase through a 13.9:1 high compression ratio while maintaining the reliability and appearance of a stock component.\n\nEliminate the downtime and high costs associated with replating or repairing damaged cylinders. This kit provides a complete, bolt-on solution that delivers professional-grade performance without the wait. Each component is manufactured to strict tolerances to ensure optimal engine function and longevity.\n\n### Key Features\n\n \n- High Compression Ratio: Engineered for 13.9:1 compression to maximize power output and throttle response.\n \n- Precision Components: Includes a hand-matched Vertex piston for a guaranteed precision fit within the cylinder.\n \n- Nickel Silicon Carbide Plating: Features a high-quality Nickel Silicon Carbide plating for superior friction reduction and heat dissipation.\n \n- OEM Appearance: Designed to maintain the stock look of your engine while providing upgraded performance internals.\n \n- Complete Top End Solution: Kit arrives with a precision-honed cylinder and a comprehensive top-end gasket set for a seamless installation process.\n \n- Quality Engineering: Provides OEM-level quality and reliability at a more accessible price point compared to factory replacement parts.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yzf-250-2008-2013-77mm-high-compression-cylinder-kit-1391","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/ae5a68b32620:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/ae5a68b32620:1"}},"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."]}}