{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"9a3c8f443ab1","name":"PISTON KIT 88-92 YZ80 48.50, WOSSNER 8187D050 YAMAHA MX","sku":"56-W569+050.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":88.94,"formatted":"£88.94"},"summary":"Wossner 8187D050 piston kit for Yamaha YZ80 1988-1992 models. Features a 48.50 mm bore for +0.50 mm oversize applications. Manufactured in Germany with forged construction for high durability and heat resistance, optimizing heat transfer from the combustion chamber. The elliptical piston profile ensures uniform load distribution under expansion, preventing localized stress and reducing the risk of piston failure. This kit includes all essential components for an engine rebuild. Specifications: Bore Size 48.50 mm, Actual Bore Diameter 48.45 mm, Stroke 45.60 mm, Display Displacement 82 cm³, Clearance 0.05 mm, Compression Ratio 2-stroke, Compression Height 27.00 mm. Cross-reference part numbers: Piston Kit 8187D050, Lock CW12, Pin WP091, Ring Set RSB4850. SKU: 56-W569+050.WO.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"48.5mm"},{"label":"Variant Id","value":"256907"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W569_2B050_2EWO/42af53b6e63e18fe.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W569_2B050_2EWO/42af53b6e63e18fe.jpg"],"description":"Wossner 8187D050 piston kit for Yamaha YZ80 1988-1992 models. Features a 48.50 mm bore for +0.50 mm oversize applications. Manufactured in Germany with forged construction for high durability and heat resistance, optimizing heat transfer from the combustion chamber. The elliptical piston profile ensures uniform load distribution under expansion, preventing localized stress and reducing the risk of piston failure. This kit includes all essential components for an engine rebuild. Specifications: Bore Size 48.50 mm, Actual Bore Diameter 48.45 mm, Stroke 45.60 mm, Display Displacement 82 cm³, Clearance 0.05 mm, Compression Ratio 2-stroke, Compression Height 27.00 mm. Cross-reference part numbers: Piston Kit 8187D050, Lock CW12, Pin WP091, Ring Set RSB4850. SKU: 56-W569+050.WO.","descriptionMarkdown":"### Wossner Forged Piston Kit - 48.50mm Oversize\n\nEngineered in Germany, this Wossner 8187D050 piston kit is designed for high-performance applications, offering superior durability and optimal engine function. The forged construction provides exceptional strength and efficient heat transfer, crucial for maintaining performance under demanding conditions. Its innovative elliptical profile is key to its advanced design, ensuring an even bearing surface even as the piston expands with heat. This intelligent design prevents localized stress points, significantly reducing the risk of piston collapse and promoting a longer service life for your engine. This comprehensive kit includes all necessary components for a professional engine rebuild.\n\n#### Key Features\n\n\t\n- Forged Construction: Offers outstanding durability and superior heat resistance for demanding use.\n\t\n- Efficient Heat Transfer: Designed to quickly move heat away from the combustion chamber, optimizing performance.\n\t\n- Elliptical Piston Profile: Ensures uniform load distribution during thermal expansion for reduced stress.\n\t\n- Stress Reduction: Minimizes localized stress to enhance reliability and prevent premature failure.\n\t\n- German Engineering: Manufactured to exacting standards in Germany for quality you can trust.\n\n#### Specifications\n\n\t\n- Bore Size: 48.50 mm\n\t\n- Actual Bore Diameter: 48.45 mm\n\t\n- Stroke: 45.60 mm\n\t\n- Display Displacement: 82 cm&sup3;\n\t\n- Clearance: 0.05 mm\n\t\n- Compression Ratio: 2-stroke (Wossner and OEM)\n\t\n- Compression Height: 27.00 mm\n\n#### Kit Components\n\n\t\n- Piston Kit: 8187D050\n\t\n- Lock: CW12\n\t\n- Pin: WP091\n\t\n- Ring Set: RSB4850","weightGrams":null,"fitments":[],"collections":[{"name":"Engine","url":"https://www.2brosparts.com/api/agent/collection/GB/engine"},{"name":"Pistons & Kits","url":"https://www.2brosparts.com/api/agent/collection/GB/pistons-kits"}],"links":{"page":"https://www.2brosparts.com/products/piston-kit-88-92-yz80-4850-wossner-8187d050-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/9a3c8f443ab1:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/9a3c8f443ab1:1"}},"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."]}}