{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"756fd69dff09","name":"PISTON KIT XT TT SR 500 87.00, 8505DA FORGED WOSSNER","sku":"56-W4045+000","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":220.73,"formatted":"£220.73"},"summary":"Wossner forged piston kit. Bore Size: 87.00 mm, Actual Bore: 86.93 mm, Stroke: 84.00 mm, Clearance: 0.07 mm, Compression Height: 29.00 mm, Dome Volume: +13.70 cm&sup3;, Compression Ratio: 9.80:1 (OEM: 9.00:1), Displacement: 449 cm&sup3;. This piston offers superior strength and heat transfer efficiency with an elliptical design for even load distribution, reducing localized pressure and preventing piston collapse. Forged construction for enhanced durability and strength. Optimized heat transfer for improved performance. Elliptical design for uniform bearing surface and reduced wear. Designed for 4-stroke engines. Made in Germany. Wossner Part No.: 8505DA, Lock P/N: CW20, Pin P/N: WP052, Ring Set P/N: 870XSY.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"87mm"},{"label":"Variant Id","value":"255507"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4045_2B000/eb365d8df505b35d.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4045_2B000/eb365d8df505b35d.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4045_2B000/29042ad563037e82.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4045_2B000/b6a7d1f6e2a758bc.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4045_2B000/0882a9416db4266e.jpg"],"description":"Wossner forged piston kit. Bore Size: 87.00 mm, Actual Bore: 86.93 mm, Stroke: 84.00 mm, Clearance: 0.07 mm, Compression Height: 29.00 mm, Dome Volume: +13.70 cm&sup3;, Compression Ratio: 9.80:1 (OEM: 9.00:1), Displacement: 449 cm&sup3;. This piston offers superior strength and heat transfer efficiency with an elliptical design for even load distribution, reducing localized pressure and preventing piston collapse. Forged construction for enhanced durability and strength. Optimized heat transfer for improved performance. Elliptical design for uniform bearing surface and reduced wear. Designed for 4-stroke engines. Made in Germany. Wossner Part No.: 8505DA, Lock P/N: CW20, Pin P/N: WP052, Ring Set P/N: 870XSY.","descriptionMarkdown":"### Wossner Forged Piston Kit for Yamaha XT/TT/SR 500\n\nEnhance the performance and durability of your Yamaha XT500, TT500, or SR500 with this high-quality forged piston kit from Wossner. Expertly manufactured in Germany, this piston is engineered for superior strength and efficient heat transfer, crucial for maximizing engine output and longevity.\n\nThe advanced elliptical design of the Wossner piston ensures a more uniform bearing surface. This innovative feature distributes load evenly across the piston, significantly reducing localized pressure points and preventing premature wear or piston collapse. This results in a smoother running engine and extended component life.\n\n**Key Features:**\n\n\t\n- Forged Construction: Provides exceptional strength and durability over cast pistons.\n\t\n- Optimized Heat Transfer: Promotes efficient cooling for improved performance and reliability.\n\t\n- Elliptical Design: Creates a uniform bearing surface for reduced wear and even load distribution.\n\t\n- Designed for 4-Stroke Engines: Specifically engineered for optimal performance in 4-stroke applications.\n\n**Specifications:**\n\n\t\n- Bore Size: 87.00 mm\n\t\n- Actual Bore: 86.93 mm\n\t\n- Stroke: 84.00 mm\n\t\n- Clearance: 0.07 mm\n\t\n- Compression Height: 29.00 mm\n\t\n- Dome Volume: +13.70 cm&sup3;\n\t\n- Compression Ratio: 9.80:1 (compared to OEM 9.00:1)\n\t\n- Displacement: 449 cm&sup3;\n\t\n- Manufacturing Origin: Germany\n\n**Wossner Part Number:** 8505DA\n\n**Included Components:**\n\n\t\n- Lock P/N: CW20\n\t\n- Pin P/N: WP052\n\t\n- Ring Set P/N: 870XSY","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-xt-tt-sr-500-8700-8505da-forged-wossner","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/756fd69dff09:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/756fd69dff09:1"}},"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."]}}