{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"f388bc007784","name":"PISTON KIT 02-20 YZ85 47.50 A, WOSSNER 8104DA YAMAHA MX","sku":"56-W805.A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":83.75,"formatted":"£83.75"},"summary":"Wossner forged piston kit with a 47.50mm bore. Standard size replacement for Yamaha YZ85 models. Engineered for durability and thermal efficiency in two-stroke engines, this German-made piston utilises advanced materials and design features to ensure consistent performance under high-stress conditions. Features forged construction for maximum strength and longevity. Designed to facilitate optimal combustion heat transfer to the cylinder walls. Elliptical profile ensures even load distribution and reduces piston collapse risk. Made in Germany. Specifications: Bore: 47.50mm, Actual Bore: 47.45mm, Engine Displacement: 85 cm&sup3;, Stroke: 47.80mm, Clearance: 0.05mm, Compression Ratio: 2-stroke (Wossner and OEM), Compression Height: 26.00mm, Lock Part Number: CW14, Pin Part Number: WP058, Ring Set Part Number: RSB4750, Con Rod Kit Part Number: P2008. Cross-Reference OEM Part Numbers: 5PA-11631-10-A0, 09104832, 805M04750.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"47.50mm"},{"label":"Variant Id","value":"257833"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W805_2EA_2EWO/2ad2009c5e5392a6.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W805_2EA_2EWO/2ad2009c5e5392a6.jpg"],"description":"Wossner forged piston kit with a 47.50mm bore. Standard size replacement for Yamaha YZ85 models. Engineered for durability and thermal efficiency in two-stroke engines, this German-made piston utilises advanced materials and design features to ensure consistent performance under high-stress conditions. Features forged construction for maximum strength and longevity. Designed to facilitate optimal combustion heat transfer to the cylinder walls. Elliptical profile ensures even load distribution and reduces piston collapse risk. Made in Germany. Specifications: Bore: 47.50mm, Actual Bore: 47.45mm, Engine Displacement: 85 cm&sup3;, Stroke: 47.80mm, Clearance: 0.05mm, Compression Ratio: 2-stroke (Wossner and OEM), Compression Height: 26.00mm, Lock Part Number: CW14, Pin Part Number: WP058, Ring Set Part Number: RSB4750, Con Rod Kit Part Number: P2008. Cross-Reference OEM Part Numbers: 5PA-11631-10-A0, 09104832, 805M04750.","descriptionMarkdown":"### Wossner Forged Piston Kit 47.50mm Bore for Yamaha YZ85\n\nThis Wossner forged piston kit features a 47.50mm bore and is engineered for high-performance two-stroke engines. Manufactured in Germany, it utilizes advanced materials and design for exceptional durability and thermal efficiency.\n\n#### Key Features\n\n \n- Forged construction for maximum strength and longevity.\n \n- Designed for optimal combustion heat transfer.\n \n- Elliptical profile ensures even load distribution and reduces piston collapse risk.\n \n- Made in Germany for quality assurance.\n\n#### Specifications\n\n \n- Bore: 47.50mm\n \n- Actual Bore: 47.45mm\n \n- Engine Displacement: 85 cm&sup3;\n \n- Stroke: 47.80mm\n \n- Clearance: 0.05mm\n \n- Compression Ratio: 2-stroke (Wossner and OEM)\n \n- Compression Height: 26.00mm\n \n- Lock Part Number: CW14\n \n- Pin Part Number: WP058\n \n- Ring Set Part Number: RSB4750\n \n- Con Rod Kit Part Number: P2008","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"YZ 80","cc":null,"notes":null,"years":"1993–2001"},{"make":"YAMAHA","model":"YZ 85","cc":null,"notes":null,"years":"2002–2025"},{"make":"YAMAHA","model":"YZ BB 85","cc":null,"notes":null,"years":"2002–2020"}],"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-02-20-yz85-4750-a-wossner-8104da-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/f388bc007784:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/f388bc007784:1"}},"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."]}}