{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"dfcff8733a1d","name":"PISTON KIT YZF450 14-15 97.00, FORGED WOSSNER 8895DA, 1SL-11631-00-00","sku":"56-W4963.A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":153.66,"formatted":"£153.66"},"summary":"Wossner forged piston kit with 97.00mm bore size (96.96mm actual). Engineered for enhanced strength and optimal thermal conductivity, facilitating efficient combustion chamber heat transfer to the cylinder walls. The elliptical design ensures a uniform bearing surface during thermal expansion, minimizing localized stress and evenly distributing thrust loads to prevent piston collapse. Displacement 449 cm&sup3;, stroke 60.80mm, clearance 0.04mm, compression ratio OEM (12.50:1), dome volume -4.90 cm&sup3;, compression height 24.00mm. Manufactured in Germany. Cross-reference OEM part number 1SL-11631-00-00.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"97mm"},{"label":"Variant Id","value":"256490"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4963_2EA_2EWO/a7faa529902512fe.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4963_2EA_2EWO/a7faa529902512fe.jpg"],"description":"Wossner forged piston kit with 97.00mm bore size (96.96mm actual). Engineered for enhanced strength and optimal thermal conductivity, facilitating efficient combustion chamber heat transfer to the cylinder walls. The elliptical design ensures a uniform bearing surface during thermal expansion, minimizing localized stress and evenly distributing thrust loads to prevent piston collapse. Displacement 449 cm&sup3;, stroke 60.80mm, clearance 0.04mm, compression ratio OEM (12.50:1), dome volume -4.90 cm&sup3;, compression height 24.00mm. Manufactured in Germany. Cross-reference OEM part number 1SL-11631-00-00.","descriptionMarkdown":"### Wossner Forged Piston Kit - 97.00mm Bore\n\nExperience superior performance and durability with the Wossner Forged Piston Kit. Engineered for high-performance Yamaha engines, this piston is crafted from forged aluminum for exceptional strength and optimal thermal conductivity. This design facilitates efficient combustion chamber heat transfer to the cylinder walls, contributing to smoother engine operation and enhanced power output. The advanced elliptical design ensures a uniform bearing surface, even under extreme thermal expansion, which minimizes localized stress and evenly distributes thrust loads to prevent piston collapse.\n\nManufactured in Germany, this Wossner piston boasts precision engineering and high-quality materials. It is designed to maintain the OEM compression ratio, making it a direct replacement for enhanced engine reliability.\n\n**Key Features:**\n\n \n- Forged construction for maximum durability and strength.\n \n- Engineered for optimal heat transfer, improving thermal efficiency.\n \n- Elliptical design promotes uniform load distribution and prevents piston stress.\n \n- Precision manufactured in Germany for superior quality.\n \n- Designed to meet OEM specifications for reliable fitment.\n\n**Specifications:**\n\n \n- Bore Size: 97.00mm (actual size 96.96mm)\n \n- Stroke: 60.80mm\n \n- Clearance: 0.04mm\n \n- Compression Ratio: OEM (12.50:1)\n \n- Dome Volume: -4.90 cm&sup3;\n \n- Compression Height: 24.00mm\n\n**Replaces OEM Part Number:** 1SL-11631-00-00","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"WR 450F","cc":null,"notes":null,"years":"2016–2019"},{"make":"YAMAHA","model":"WRF 450","cc":null,"notes":null,"years":"2016–2019"},{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2014–2019"},{"make":"YAMAHA","model":"YZ 450FX","cc":null,"notes":null,"years":"2016–2019"},{"make":"YAMAHA","model":"YZF 450","cc":null,"notes":null,"years":"2014–2019"},{"make":"YAMAHA","model":"YZF X 450","cc":null,"notes":null,"years":"2016–2019"}],"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-yzf450-14-15-9700-forged-wossner-8895da-1sl-11631-00-00","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/dfcff8733a1d:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/dfcff8733a1d: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."]}}