{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"8ecbbf108ec5","name":"TOP END CYLINDER KIT STD 66.80mm YAMAHA DT 230 MT TSE 250 4TP-11311-01","sku":"56-K2905.CLY.KIT","brand":"Dirt Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":10,"price":{"amount":315.07,"formatted":"£315.07"},"summary":"Top-end cylinder kit STD 66.80mm for Yamaha DT 230 MT TSE 250. This kit is a direct OEM replacement designed to match original fit and function. It includes the cylinder assembly and matching piston components for a standard-replacement rebuild. Features include direct OEM replacement, meets or exceeds OEM quality standards, designed for durability and reliable performance, and complete top-end rebuild kit components for cylinder and piston assembly replacement. Specifications include a bore size of 66.8mm, piston size of 66.8mm, piston pin diameter of 16mm, cylinder end distance of 105mm, and total cylinder length of 133.3mm. Cross-reference OEM part numbers are Cylinder: 4TP-11311-01, Gasket: 4TP-11181-00, Piston: 4TP-11631-10-AO, and Rings: 4TP-11610-00.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Cylinder Kits"},{"label":"Variant Id","value":"312026"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K2905_2ECLY_2EKIT/d05b4b300470c1e2.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K2905_2ECLY_2EKIT/d05b4b300470c1e2.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K2905_2ECLY_2EKIT/47af3be53653137c.jpg"],"description":"Top-end cylinder kit STD 66.80mm for Yamaha DT 230 MT TSE 250. This kit is a direct OEM replacement designed to match original fit and function. It includes the cylinder assembly and matching piston components for a standard-replacement rebuild. Features include direct OEM replacement, meets or exceeds OEM quality standards, designed for durability and reliable performance, and complete top-end rebuild kit components for cylinder and piston assembly replacement. Specifications include a bore size of 66.8mm, piston size of 66.8mm, piston pin diameter of 16mm, cylinder end distance of 105mm, and total cylinder length of 133.3mm. Cross-reference OEM part numbers are Cylinder: 4TP-11311-01, Gasket: 4TP-11181-00, Piston: 4TP-11631-10-AO, and Rings: 4TP-11610-00.","descriptionMarkdown":"### Top End Cylinder Kit STD 66.80mm for Yamaha DT 230 MT TSE 250\n\nRestore your Yamaha DT 230, MT 250, or TSE 250 to peak performance with this comprehensive top-end cylinder kit. Designed as a direct replacement for original equipment, this kit ensures a perfect fit and original function for a seamless rebuild.\n\n#### Key Features:\n\n\t\n- Direct OEM Replacement: Engineered to match the specifications and quality of original parts.\n\t\n- Superior Quality: Meets or exceeds original equipment manufacturer (OEM) quality standards for reliable performance.\n\t\n- Enhanced Durability: Built for long-lasting use and consistent, dependable operation.\n\t\n- Complete Rebuild Solution: Includes all necessary components for a full top-end cylinder and piston assembly replacement.\n\n#### Specifications:\n\n\t\n- Bore Size: 66.8mm\n\t\n- Piston Size: 66.8mm\n\t\n- Piston Pin Diameter: 16mm\n\t\n- Cylinder End Distance: 105mm\n\t\n- Total Cylinder Length: 133.3mm\n\n#### Replaces OEM Part Numbers:\n\n\t\n- Cylinder: 4TP-11311-01\n\t\n- Gasket: 4TP-11181-00\n\t\n- Piston: 4TP-11631-10-AO\n\t\n- Rings: 4TP-11610-00","weightGrams":null,"fitments":[],"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/top-end-cylinder-kit-std-6680mm-yamaha-dt-230-mt-tse-250-4tp-11311-01","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/8ecbbf108ec5:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/8ecbbf108ec5:1"}},"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."]}}