{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"374ed0628060","name":"49mm BIG BORE CYLINDER KIT YAMAHA DT50 TZR50","sku":"56-K289.49.CYL","brand":"Dirt Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":151.72,"formatted":"£151.72"},"summary":"This 49mm big bore cylinder and piston kit is an aftermarket replacement designed for AM6 Minarelli 2-stroke engines. Engineered for improved durability and precise fitment, it includes all essential top-end components required for a reliable rebuild or performance upgrade. Features include a high-grade cast aluminium cylinder, a forged aluminium piston with high silicone content for added strength, and molybdenum Teflon-coated piston skirts to reduce friction and wear. The anodised piston dome enhances heat resistance and longevity, while performance gasket materials increase durability and reliability. The set includes the piston, rings, pin, clips, and a top-end gasket kit. Bore size is 49mm, and the piston pin is 12mm. This is a 100% brand new aftermarket replacement.","attributes":[],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K289_2E49_2ECYL/1a89db04ae937734.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K289_2E49_2ECYL/1a89db04ae937734.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K289_2E49_2ECYL/f702eb82e1afe58e.png","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K289_2E49_2ECYL/8f3e95a0409edf39.png","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K289_2E49_2ECYL/9f4ca5e6dd8c41d1.png","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K289_2E49_2ECYL/9797150010e112b2.png"],"description":"This 49mm big bore cylinder and piston kit is an aftermarket replacement designed for AM6 Minarelli 2-stroke engines. Engineered for improved durability and precise fitment, it includes all essential top-end components required for a reliable rebuild or performance upgrade. Features include a high-grade cast aluminium cylinder, a forged aluminium piston with high silicone content for added strength, and molybdenum Teflon-coated piston skirts to reduce friction and wear. The anodised piston dome enhances heat resistance and longevity, while performance gasket materials increase durability and reliability. The set includes the piston, rings, pin, clips, and a top-end gasket kit. Bore size is 49mm, and the piston pin is 12mm. This is a 100% brand new aftermarket replacement.","descriptionMarkdown":"### 49mm Big Bore Cylinder Kit for Yamaha DT50 TZR50\n\nThis aftermarket big bore cylinder and piston kit is designed as a high-quality replacement and performance upgrade for Yamaha and AM6 Minarelli 2-stroke engines. Engineered for enhanced durability and precise fitment, this kit provides all the essential top-end components needed for a reliable engine rebuild or performance boost.\n\n#### Key Features:\n\n\t\n- High-Grade Cast Aluminium Cylinder: Provides excellent heat dissipation and durability.\n\t\n- Forged Aluminium Piston: Features a high silicone content for superior strength and resistance to heat and stress.\n\t\n- Molybdenum Teflon-Coated Piston Skirts: Significantly reduces friction and wear, promoting smoother operation and extended engine life.\n\t\n- Anodised Piston Dome: Offers increased heat resistance and improved longevity of the piston.\n\t\n- Performance Gasket Materials: Utilizes durable gasket materials for increased reliability and a secure seal.\n\t\n- Complete Top-End Kit: Includes piston, rings, pin, clips, and a top-end gasket kit for a comprehensive installation.\n\t\n- Aftermarket Replacement: This kit is 100% brand new and designed to meet or exceed original specifications.\n\n#### Specifications:\n\n\t\n- Bore Size: 49mm\n\t\n- Piston Pin Diameter: 12mm\n\t\n- Piston Material: Forged Aluminium\n\t\n- Quantity: 1 Set","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/49mm-big-bore-cylinder-kit-yamaha-dt50-tzr50","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/374ed0628060:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/374ed0628060:1"}},"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."]}}