{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"785d01ed7db2","name":"PISTON KIT XT TT SR 500 88.50, FORGED WOSSNER 8505D150","sku":"56-W4045+150","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":231.1,"formatted":"£231.10"},"summary":"Wossner forged piston kit for Yamaha XT500, TT500, and SR500 models. Manufactured in Germany, this piston offers superior strength and heat transfer efficiency. The elliptical design ensures even load distribution, reducing localized pressure and preventing piston collapse. Features forged construction for enhanced durability and strength, optimized heat transfer for improved performance, and an elliptical design for uniform bearing surface and reduced wear. Designed for 4-stroke engines. Specifications include a bore size of 88.50 mm, actual bore of 87.93 mm, stroke of 84.00 mm, clearance of 0.07 mm, compression height of 29.00 mm, dome volume of +13.70 cm&sup3;, compression ratio of 9.80:1 (OEM 9.00:1), and displacement of 449 cm&sup3;. Made in Germany. Wossner Part No: 8505D150.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"88.5mm"},{"label":"Variant Id","value":"255515"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock54461_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock54461_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54461_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54461_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54461_4.jpg"],"description":"Wossner forged piston kit for Yamaha XT500, TT500, and SR500 models. Manufactured in Germany, this piston offers superior strength and heat transfer efficiency. The elliptical design ensures even load distribution, reducing localized pressure and preventing piston collapse. Features forged construction for enhanced durability and strength, optimized heat transfer for improved performance, and an elliptical design for uniform bearing surface and reduced wear. Designed for 4-stroke engines. Specifications include a bore size of 88.50 mm, actual bore of 87.93 mm, stroke of 84.00 mm, clearance of 0.07 mm, compression height of 29.00 mm, dome volume of +13.70 cm&sup3;, compression ratio of 9.80:1 (OEM 9.00:1), and displacement of 449 cm&sup3;. Made in Germany. Wossner Part No: 8505D150.","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 premium forged piston kit from Wossner. Expertly manufactured in Germany, this piston is engineered for superior strength and efficient heat transfer, crucial for demanding 4-stroke engines.\n\nThe innovative elliptical design ensures an even distribution of load across the piston's surface. This design significantly reduces localized pressure points, minimizing wear and preventing potential piston collapse, even under extreme operating conditions.\n\n**Key Features:**\n\n \n- Forged Construction: Provides exceptional durability and strength compared to cast pistons.\n \n- Optimized Heat Transfer: Promotes better thermal management for improved engine performance and longevity.\n \n- Elliptical Design: Creates a uniform bearing surface, leading to reduced wear and increased piston life.\n \n- Engineered for 4-Stroke Engines: Specifically designed to meet the demands of your motorcycle's engine.\n\n**Specifications:**\n\n \n- Bore Size: 88.50 mm\n \n- Actual Bore: 87.93 mm\n \n- Stroke: 84.00 mm\n \n- Clearance: 0.07 mm\n \n- Compression Height: 29.00 mm\n \n- Dome Volume: +13.70 cm&sup3;\n \n- Compression Ratio: 9.80:1 (compared to OEM 9.00:1)\n \n- Displacement: 449 cm&sup3;\n \n- Manufacturing Origin: Made in Germany\n\n**Wossner Part Number:** 8505D150\n\n**Included Components:**\n\n \n- Lock P/N: CW20\n \n- Pin P/N: WP052\n \n- Ring Set P/N: 885XSY","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-500-8850-forged-wossner-8505d150","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/785d01ed7db2:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/785d01ed7db2:1"}},"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."]}}