{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"8c936c11bb46","name":"PISTON KIT 76-80 YZ80 49.00, FORGED WOSSNER 8183DA","sku":"56-W457+000.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":88.94,"formatted":"£88.94"},"summary":"Wossner 49mm forged piston kit. Features forged construction for superior strength and durability, optimized heat transfer to cylinder walls, elliptical design for uniform bearing surface under heat expansion, reduced localized pressure, and even distribution of thrust loads, preventing piston collapse under high-stress conditions. Specifications include a bore size of 49mm, Wossner part number 8183DA, lock part number CW12, pin part number WP091, ring set part number RSB4900, displacement of 79 cm³, stroke of 42.00mm, clearance of 0.05mm, 2-stroke compression ratio, and compression height of 29.50mm. Made in Germany.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"49mm"},{"label":"Variant Id","value":"255713"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W457_2B000_2EWO/481d11e816d9b3b1.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W457_2B000_2EWO/481d11e816d9b3b1.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W457_2B000_2EWO/6a9da76047b07b25.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W457_2B000_2EWO/779914517f6df701.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W457_2B000_2EWO/cfff4a41badc353f.jpg"],"description":"Wossner 49mm forged piston kit. Features forged construction for superior strength and durability, optimized heat transfer to cylinder walls, elliptical design for uniform bearing surface under heat expansion, reduced localized pressure, and even distribution of thrust loads, preventing piston collapse under high-stress conditions. Specifications include a bore size of 49mm, Wossner part number 8183DA, lock part number CW12, pin part number WP091, ring set part number RSB4900, displacement of 79 cm³, stroke of 42.00mm, clearance of 0.05mm, 2-stroke compression ratio, and compression height of 29.50mm. Made in Germany.","descriptionMarkdown":"### Wossner 49mm Forged Piston Kit for Yamaha YZ80\n\nEnhance your Yamaha YZ80's performance and durability with this high-quality 49mm forged piston kit from Wossner. Engineered in Germany, this piston is designed for optimal combustion chamber heat transfer and uniform load distribution, significantly reducing localized pressure and preventing piston collapse even under the most demanding conditions.\n\n#### Key Features:\n\n\t\n- Forged Construction: Provides superior strength and exceptional durability for a longer lifespan.\n\t\n- Optimized Heat Transfer: Efficiently transfers heat to the cylinder walls, maintaining optimal operating temperatures.\n\t\n- Elliptical Design: Ensures a uniform bearing surface, compensating for heat expansion and maintaining consistent performance.\n\t\n- Even Load Distribution: Reduces localized pressure points and evenly distributes thrust loads for smoother operation.\n\t\n- Piston Collapse Prevention: Engineered to withstand high-stress situations and prevent failure.\n\n#### Specifications:\n\n\t\n- Bore Size: 49.00mm\n\t\n- Displacement: 79 cm&sup3;\n\t\n- Stroke: 42.00mm\n\t\n- Clearance: 0.05mm\n\t\n- Compression Ratio: 2-stroke\n\t\n- Compression Height: 29.50mm\n\t\n- Wossner Part Number: 8183DA\n\t\n- Lock Part Number: CW12\n\t\n- Pin Part Number: WP091\n\t\n- Ring Set Part Number: RSB4900","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-76-80-yz80-4900-forged-wossner-8183da","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/8c936c11bb46:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/8c936c11bb46:1"}},"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."]}}