{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"4d68c296d57b","name":"CYLINDER ONLY STD 66.40mm YZ250 YAMAHA 2003 - 2025 2T 5UP-11311-21","sku":"56-K156.664.CYLDR","brand":"Dirt Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":12,"price":{"amount":304.68,"formatted":"£304.68"},"summary":"CYLINDER ONLY STD 66.40mm. Constructed from aluminum alloy, this cylinder block features a bore size of 66.4mm and serves as a direct replacement for multiple OEM part numbers. Material: Aluminum alloy. Bore Size: 66.4mm. Weight: 2260g. Cross-Reference OEM Part Numbers: 5UP-11311-00-00, 5UP-11311-01-00, 5UP-11311-10-00, 5UP-11311-11-00, 5UP-11311-20-00, 5UP-11311-21-00, BF1-11311-00-00.","attributes":[{"label":"General Colour C","value":"Silver"},{"label":"General Material","value":"Aluminium"},{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Cylinders & Heads"},{"label":"General Size","value":"66.40mm"},{"label":"Variant Id","value":"344088"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K156_2E664_2ECYLDR/5a2e6ea4828bd246.png","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K156_2E664_2ECYLDR/5a2e6ea4828bd246.png","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K156_2E664_2ECYLDR/d88e5af5e86c67b4.png","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K156_2E664_2ECYLDR/1ac9b45a72c2e42c.png","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K156_2E664_2ECYLDR/1b679a30a915198f.png","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K156_2E664_2ECYLDR/6dc12fdb2a5ca595.png","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K156_2E664_2ECYLDR/f4445f22ad4f570d.png"],"description":"CYLINDER ONLY STD 66.40mm. Constructed from aluminum alloy, this cylinder block features a bore size of 66.4mm and serves as a direct replacement for multiple OEM part numbers. Material: Aluminum alloy. Bore Size: 66.4mm. Weight: 2260g. Cross-Reference OEM Part Numbers: 5UP-11311-00-00, 5UP-11311-01-00, 5UP-11311-10-00, 5UP-11311-11-00, 5UP-11311-20-00, 5UP-11311-21-00, BF1-11311-00-00.","descriptionMarkdown":"### Dirt Racing Standard Cylinder Only for Yamaha YZ250 2-Stroke\n\nUpgrade your Yamaha YZ250 2-Stroke with this high-quality standard cylinder. Engineered for optimal performance and durability, this cylinder is a direct replacement designed to meet or exceed OEM specifications.\n\n#### Key Features:\n\n\t\n- Standard Bore: Features a precise 66.40mm bore size for standard engine builds.\n\t\n- Durable Construction: Crafted from robust aluminum alloy for excellent heat dissipation and longevity.\n\t\n- Direct Replacement: Designed as a perfect fit for multiple OEM cylinder part numbers, ensuring a straightforward installation.\n\n#### Specifications:\n\n\t\n- Material: Aluminum Alloy\n\t\n- Bore Size: 66.4mm\n\t\n- Weight: 2260g\n\n#### Cross-Reference OEM Part Numbers:\n\n\t\n- 5UP-11311-00-00\n\t\n- 5UP-11311-01-00\n\t\n- 5UP-11311-10-00\n\t\n- 5UP-11311-11-00\n\t\n- 5UP-11311-20-00\n\t\n- 5UP-11311-21-00\n\t\n- BF1-11311-00-00","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":[{"name":"Engine","url":"https://www.2brosparts.com/api/agent/collection/GB/engine"},{"name":"Cylinders & Heads","url":"https://www.2brosparts.com/api/agent/collection/GB/cylinders-heads"}],"links":{"page":"https://www.2brosparts.com/products/cylinder-only-std-6640mm-yz250-yamaha-2003-2025-2t-5up-11311-21","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/4d68c296d57b:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/4d68c296d57b: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."]}}