{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"45777d4984e6","name":"CYLINDER KIT BIG BORE 44.00mm YAMAHA PW 50 QT 60 4J2-11111-00-00","sku":"56-K201.44.CK","brand":"Dirt Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":81,"price":{"amount":73.9,"formatted":"£73.90"},"summary":"This 60cc big bore cylinder kit is a replacement top-end assembly that increases the standard 40.00 mm bore to 44.00 mm. It includes the main components required for cylinder, piston, and gasket replacement for top-end engine rebuilds. Designed as a direct OEM-style replacement, the kit is intended for straightforward installation. Kit contents include one cylinder block, one cylinder head, one piston, one piston pin, one bearing, one piston ring set, one head gasket, and one cylinder gasket. Cross-reference OEM part numbers: 4J2-11111-00-00, 4J2-11111-01-00, 4J2-11311-01-00, 3L5-11111-02-00, 3L5-11311-01-00, 517-11181-01-00, 517-11181-00-00, 3PT-11351-00-00, 18U-11631-00-A0, 3L5-11633-00-00, 2E9-11633-00-00, 260-11610-04-00, 260-11601-03-00, 93450-11021-00, 93310-21038-00, 93310-210M0-00, 93306-20335-00. Manufactured by Dirt Racing.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Cylinder Kits"},{"label":"General Size","value":"60mm"},{"label":"Variant Id","value":"253132"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K201_2E44_2ECK/76bbddde07b96dd5.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K201_2E44_2ECK/76bbddde07b96dd5.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K201_2E44_2ECK/e9d446a29644e6c0.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K201_2E44_2ECK/92f3ef006c7076c9.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K201_2E44_2ECK/62ec27251d449a5c.jpg"],"description":"This 60cc big bore cylinder kit is a replacement top-end assembly that increases the standard 40.00 mm bore to 44.00 mm. It includes the main components required for cylinder, piston, and gasket replacement for top-end engine rebuilds. Designed as a direct OEM-style replacement, the kit is intended for straightforward installation. Kit contents include one cylinder block, one cylinder head, one piston, one piston pin, one bearing, one piston ring set, one head gasket, and one cylinder gasket. Cross-reference OEM part numbers: 4J2-11111-00-00, 4J2-11111-01-00, 4J2-11311-01-00, 3L5-11111-02-00, 3L5-11311-01-00, 517-11181-01-00, 517-11181-00-00, 3PT-11351-00-00, 18U-11631-00-A0, 3L5-11633-00-00, 2E9-11633-00-00, 260-11610-04-00, 260-11601-03-00, 93450-11021-00, 93310-21038-00, 93310-210M0-00, 93306-20335-00. Manufactured by Dirt Racing.","descriptionMarkdown":"### Dirt Racing 60cc Big Bore Cylinder Kit - 44.00mm Bore\n\n\tUpgrade your engine's performance with this 60cc big bore cylinder kit from Dirt Racing. This comprehensive kit is designed as a direct replacement for the original top-end assembly, increasing the standard bore size from 40.00 mm to 44.00 mm. It includes all the essential components needed for a complete cylinder, piston, and gasket replacement, making it ideal for top-end engine rebuilds.\n\n#### Key Features:\n\n\t\n- Increased Displacement: Boosts engine capacity to 60cc with a 44.00 mm bore.\n\t\n- Complete Kit: Supplied with all necessary parts for a full top-end rebuild.\n\t\n- OEM-Style Replacement: Designed for straightforward installation and reliable performance.\n\t\n- High-Quality Components: Built to OEM quality standards for durability.\n\t\n- Engine Rebuild Essential: Perfect for refreshing or enhancing your engine's power.\n\n#### Kit Contents:\n\n\t\n- 1 x Cylinder Block\n\t\n- 1 x Cylinder Head\n\t\n- 1 x Piston\n\t\n- 1 x Piston Pin\n\t\n- 1 x Bearing\n\t\n- 1 x Piston Ring Set\n\t\n- 1 x Head Gasket\n\t\n- 1 x Cylinder Gasket\n\n#### Specifications:\n\n\t\n- Big Bore Capacity: 60cc\n\t\n- Bore Size: 44.00 mm\n\t\n- Standard Bore Size: 40.00 mm\n\n**Note:** Professional installation is recommended if you are unsure about the process. Please verify the product image before ordering to ensure compatibility and avoid errors.\n\n**Cross-Reference OEM Part Numbers:** 4J2-11111-00-00, 4J2-11111-01-00, 4J2-11311-01-00, 3L5-11111-02-00, 3L5-11311-01-00, 517-11181-01-00, 517-11181-00-00, 3PT-11351-00-00, 18U-11631-00-A0, 3L5-11633-00-00, 2E9-11633-00-00, 260-11610-04-00, 260-11601-03-00, 93450-11021-00, 93310-21038-00, 93310-210M0-00, 93306-20335-00.","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/cylinder-kit-big-bore-4400mm-yamaha-pw-50-qt-60-4j2-11111-00-00","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/45777d4984e6:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/45777d4984e6:1"}},"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."]}}