{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"05b014ca2793","name":"CYLINDER ONLY STD 66.40mm YZ250 YAMAHA 2003 - 2025 2T 5UP-11311-21","sku":"56-K156.664.CYLNM","brand":"Namura Technologies","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":5,"price":{"amount":418.62,"formatted":"£418.62"},"summary":"Standard replacement cylinder for Yamaha YZ 250 two-stroke models, supplied as a cylinder only. This standard-size cylinder is intended as a direct replacement component for engine rebuild or repair. Features include a replacement standard cylinder, cylinder only, suitable for engine repair or rebuild, and direct replacement. Specifications: standard size, bore 66.40 mm, engine type 2-stroke. Cross-reference OEM part number: 5UP-11311-21. Manufacturer: Namura Technologies.","attributes":[],"image":null,"images":[],"description":"Standard replacement cylinder for Yamaha YZ 250 two-stroke models, supplied as a cylinder only. This standard-size cylinder is intended as a direct replacement component for engine rebuild or repair. Features include a replacement standard cylinder, cylinder only, suitable for engine repair or rebuild, and direct replacement. Specifications: standard size, bore 66.40 mm, engine type 2-stroke. Cross-reference OEM part number: 5UP-11311-21. Manufacturer: Namura Technologies.","descriptionMarkdown":"### Namura Technologies Standard Cylinder for Yamaha YZ250\n\nThis is a standard replacement cylinder designed for Yamaha YZ250 two-stroke motorcycles. It is supplied as the cylinder component only, making it an ideal part for engine rebuilds or repairs. This cylinder offers a direct fit replacement for compatible Yamaha models, ensuring your engine is restored to its optimal performance.\n\n#### Key Features:\n\n \n- Standard size replacement cylinder\n \n- Cylinder component included\n \n- Designed for engine repair and rebuild\n \n- Direct replacement for compatible Yamaha YZ250 motorcycles\n\n#### Specifications:\n\n \n- Bore Size: 66.40 mm\n \n- Engine Type: 2-stroke\n \n- Manufacturer: Namura Technologies\n\nThis cylinder corresponds to OEM part number 5UP-11311-21.","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"YZ 250","cc":null,"notes":null,"years":"2003–2021"},{"make":"YAMAHA","model":"YZ 2T 250","cc":null,"notes":null,"years":"2003–2019"}],"collections":[],"links":{"page":"https://www.2brosparts.com/products/cylinder-only-std-6640mm-yz250-yamaha-2003-2025-2t-5up-11311-21-ujk4z","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/05b014ca2793:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/05b014ca2793:1"}},"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."]}}