{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"c363e367e7eb","name":"PISTON KIT 85-87 YZ80 50.00, WOSSNER 8186D200 YAMAHA MX","sku":"56-W520+200.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":88.93,"formatted":"£88.93"},"summary":"Wossner piston kit with a 50.00 mm bore and 49.95 mm actual piston diameter. Features forged piston construction for durability, designed for optimal combustion heat transfer, and an elliptical profile for even thrust load distribution. Manufactured in Germany. Specifications: Bore size 50.00 mm, Actual piston diameter 49.95 mm, Display (cm³) 82, Stroke 45.60 mm, Clearance 0.05 mm, Compression height 26.80 mm, Wossner compression ratio 2-stroke, OEM compression ratio 2-stroke. Wossner piston part number 8186D200. Lock part number CW12. Pin part number WP091. Ring set part number RSB5000. Alternate part number 56-W520+200.WO.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"50mm"},{"label":"Variant Id","value":"256681"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55627_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55627_1.jpg"],"description":"Wossner piston kit with a 50.00 mm bore and 49.95 mm actual piston diameter. Features forged piston construction for durability, designed for optimal combustion heat transfer, and an elliptical profile for even thrust load distribution. Manufactured in Germany. Specifications: Bore size 50.00 mm, Actual piston diameter 49.95 mm, Display (cm³) 82, Stroke 45.60 mm, Clearance 0.05 mm, Compression height 26.80 mm, Wossner compression ratio 2-stroke, OEM compression ratio 2-stroke. Wossner piston part number 8186D200. Lock part number CW12. Pin part number WP091. Ring set part number RSB5000. Alternate part number 56-W520+200.WO.","descriptionMarkdown":"### Wossner Piston Kit for Yamaha YZ80 (1985-1987)\n\nEnhance the performance and reliability of your Yamaha YZ80 with this premium Wossner Piston Kit. Specifically engineered for models from 1985 to 1987, this kit features a precisely machined 50.00 mm bore size with an actual piston diameter of 49.95 mm. Manufactured in Germany, Wossner pistons are renowned for their high-strength forged construction, ensuring exceptional durability and efficient heat transfer directly from the combustion chamber to the cylinder walls. The advanced elliptical design of the piston guarantees a uniform bearing surface, even under extreme heat expansion, effectively minimizing localized stress and significantly reducing the risk of piston failure.\n\n#### Key Features:\n\n \n- Forged Piston Construction: Provides superior strength and resilience for high-stress operating conditions.\n \n- Optimal Heat Transfer: Designed to efficiently dissipate combustion heat, contributing to engine longevity.\n \n- Elliptical Piston Profile: Ensures even distribution of thrust loads for reduced wear and improved performance.\n \n- German Engineering: Manufactured with precision and quality standards expected from German production.\n\n#### Specifications:\n\n \n- Bore Size: 50.00 mm\n \n- Actual Piston Diameter: 49.95 mm\n \n- Displacement (cm&sup3;): 82\n \n- Stroke: 45.60 mm\n \n- Clearance: 0.05 mm\n \n- Compression Height: 26.80 mm\n \n- Wossner Compression Ratio: 2-stroke\n \n- OEM Compression Ratio: 2-stroke\n\n#### Included Components & Part Numbers:\n\n \n- Wossner Piston Part Number: 8186D200\n \n- Lock Part Number: CW12\n \n- Pin Part Number: WP091\n \n- Ring Set Part Number: RSB5000\n \n- Cross-Reference Part Number: 56-W520+","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-85-87-yz80-5000-wossner-8186d200-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/c363e367e7eb:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/c363e367e7eb: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."]}}