{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"1c109c464055","name":"PISTON KIT 03-04 YZF450 95 HC, FORGED WOSSNER 8570DB","sku":"56-W4785.B.WO.H","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":220.73,"formatted":"£220.73"},"summary":"Wossner high-compression forged piston kit with an 85mm bore size and 94.97mm (95.01mm) measurement. Engineered with an elliptical shape to ensure uniform bearing surfaces under heat expansion, reducing localized pressure and preventing piston collapse. Optimized for efficient heat transfer and manufactured in Germany for high-performance applications. Features include high-compression forged construction for increased power and durability, optimized heat transfer for improved combustion efficiency, and an elliptical design for even thrust load distribution. Specifications: 449 cm&sup3; displacement, 63.40mm stroke, 0.04mm clearance, 12.50:1 compression ratio, -7.80 cm&sup3; dome volume, 23.50mm compression height. Included components: Piston Kit (8570DB), Piston Clip (CW18), Piston Pin (WP053), Piston Ring (950ADS-2). Weight: 428 grams.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"95mm"},{"label":"Variant Id","value":"256086"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55032_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55032_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55032_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55032_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55032_4.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55032_5.jpg"],"description":"Wossner high-compression forged piston kit with an 85mm bore size and 94.97mm (95.01mm) measurement. Engineered with an elliptical shape to ensure uniform bearing surfaces under heat expansion, reducing localized pressure and preventing piston collapse. Optimized for efficient heat transfer and manufactured in Germany for high-performance applications. Features include high-compression forged construction for increased power and durability, optimized heat transfer for improved combustion efficiency, and an elliptical design for even thrust load distribution. Specifications: 449 cm&sup3; displacement, 63.40mm stroke, 0.04mm clearance, 12.50:1 compression ratio, -7.80 cm&sup3; dome volume, 23.50mm compression height. Included components: Piston Kit (8570DB), Piston Clip (CW18), Piston Pin (WP053), Piston Ring (950ADS-2). Weight: 428 grams.","descriptionMarkdown":"### Wossner High-Compression Forged Piston Kit for Enhanced Performance\n\nElevate your motorcycle's performance with this Wossner high-compression forged piston kit. Engineered for demanding applications, this kit is designed to deliver increased power and exceptional durability. The advanced elliptical piston design ensures uniform bearing surfaces even under extreme heat, effectively reducing localized pressure and preventing piston collapse for reliable operation.\n\n#### Key Features:\n\n\t\n- High-Compression Forged Construction: Provides a significant boost in power and long-lasting durability.\n\t\n- Optimized Heat Transfer: Promotes improved combustion efficiency for better performance.\n\t\n- Elliptical Design: Distributes thrust loads evenly for reduced wear and sustained performance.\n\t\n- German Engineering: Manufactured in Germany to exacting standards for high-performance reliability.\n\n#### Technical Specifications:\n\n\t\n- Bore Size: 94.97mm (95.01mm with +0.01mm oversize)\n\t\n- Displacement: 449 cm&sup3;\n\t\n- Stroke: 63.40mm\n\t\n- Clearance: 0.04mm\n\t\n- Compression Ratio: OEM (12.50:1)\n\t\n- Dome Volume: -7.80 cm&sup3;\n\t\n- Compression Height: 23.50mm\n\n#### Included Components:\n\n\t\n- Piston Kit (Part Number: 8570DB)\n\t\n- Piston Clip: CW18\n\t\n- Piston Pin: WP053\n\t\n- Piston Ring: 950ADS-2","weightGrams":null,"fitments":[{"make":"GAS-GAS","model":"EC F 250","cc":null,"notes":null,"years":"2013–2015"},{"make":"GAS-GAS","model":"EC F 450","cc":null,"notes":null,"years":"2013–2015"},{"make":"YAMAHA","model":"WR 450F","cc":null,"notes":null,"years":"2003–2015"},{"make":"YAMAHA","model":"WRF 450","cc":null,"notes":null,"years":"2003–2015"},{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2003–2009"},{"make":"YAMAHA","model":"YZF 450","cc":null,"notes":null,"years":"2003–2009"}],"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-03-04-yzf450-95-hc-forged-wossner-8570db","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/1c109c464055:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/1c109c464055:1"}},"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. 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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."]}}