{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"0d5927dc1a76","name":"TOP END PISTON KIT 81-84 HONDA ATC R 250 70.5mm 0.5mm OVER VINTCO KTH21-0.5","sku":"VIN-KTH21-0.5","brand":"Vintco","mpn":null,"gtin":null,"condition":"new","inStock":false,"stock":0,"price":{"amount":205.42,"formatted":"£205.42"},"summary":"VintCo KTH21-0.5 is a top-end piston kit featuring a 70.5 mm nominal bore size and a +0.5 mm oversize piston. The kit includes a forged, MOS2-coated piston, rings, pin, clips, top-end bearing, and a full gasket set comprising head, base, intake, and exhaust pipe gaskets. Manufactured in Germany, this kit utilizes modern materials for fitment and performance comparable to OEM. Specifications include a 70.44 mm piston diameter, 0.06 mm piston clearance, and VintCo part number KTH21-0.5. OEM cross-reference part numbers for gaskets are 12254-961-010 (head), 12191-961-306 (base), 14132-KAE-000 and 14133-430-306 (intake), and 18291-961-306 (exhaust pipe). Other size options are available.","attributes":[],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/VIN-KTH21-0_2E5/2969788ff2299ae9.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/VIN-KTH21-0_2E5/2969788ff2299ae9.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/VIN-KTH21-0_2E5/00f5005b332b2f2a.jpg"],"description":"VintCo KTH21-0.5 is a top-end piston kit featuring a 70.5 mm nominal bore size and a +0.5 mm oversize piston. The kit includes a forged, MOS2-coated piston, rings, pin, clips, top-end bearing, and a full gasket set comprising head, base, intake, and exhaust pipe gaskets. Manufactured in Germany, this kit utilizes modern materials for fitment and performance comparable to OEM. Specifications include a 70.44 mm piston diameter, 0.06 mm piston clearance, and VintCo part number KTH21-0.5. OEM cross-reference part numbers for gaskets are 12254-961-010 (head), 12191-961-306 (base), 14132-KAE-000 and 14133-430-306 (intake), and 18291-961-306 (exhaust pipe). Other size options are available.","descriptionMarkdown":"### VintCo Top End Piston Kit - 70.5mm 0.5mm Oversize\n\nRestore the performance of your motorcycle's engine with this comprehensive VintCo Top End Piston Kit. Designed as a complete rebuild package, this kit ensures you have all the necessary components for a successful top-end overhaul. Manufactured using modern materials and advanced production methods, this kit provides OEM-comparable fitment and performance, bringing your engine back to its optimal running condition.\n\n**Key Features:**\n\n \n- Complete top-end rebuild kit for a full engine overhaul.\n \n- Includes piston, rings, pin, and clips for a ready-to-install assembly.\n \n- Comes with a top-end bearing, also known as a wrist pin bearing.\n \n- Features a full top-end gasket set for a perfect seal.\n \n- Specific gaskets included: head gasket, base gasket, intake gaskets, and exhaust pipe gasket.\n \n- The piston is coated with MOS2 to aid in the running-in process, promoting longevity and smooth operation.\n \n- Constructed from forged aluminum for superior strength and durability.\n \n- Piston clearance is precisely set at 0.06 mm for optimal performance.\n \n- Kit offers a significant cost saving compared to purchasing individual components.\n \n- Available in additional size options to meet specific engine requirements.\n \n- Manufactured in Germany, ensuring high-quality engineering and production standards.\n\n**Specifications:**\n\n \n- Product Type: Top End Piston Kit\n \n- Nominal Bore Size: 70.5 mm\n \n- Piston Diameter: 70.44 mm\n \n- Oversize: +0.5 mm\n \n- Piston Coating: MOS2","weightGrams":null,"fitments":[{"make":"HONDA","model":"ATC R 250","cc":null,"notes":null,"years":"1981–1984"}],"collections":[],"links":{"page":"https://www.2brosparts.com/products/top-end-piston-kit-81-84-honda-atc-r-250-705mm-05mm-over-vintco-kth21-05","buyOneNow":null,"basketWithThis":null}},"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. Checkout links only work for shoppers in the UK: for anywhere else, give them the product pages.","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."]}}