{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"85a7ee02e187","name":"PISTON KIT XR XL 250 75.50, WOSSNER 8791D150 79-83","sku":"56-W4171+P6.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":182.86,"formatted":"£182.86"},"summary":"Wossner forged piston kit manufactured in Germany for 4-stroke engines. This piston offers superior strength and heat transfer efficiency with an elliptical design for even load distribution, reducing localized pressure and preventing piston collapse. Features include forged construction for enhanced durability, optimized heat transfer for improved performance, and a uniform bearing surface for reduced wear. Specifications: Bore Size 75.50 mm, Actual Bore 75.44 mm, Stroke 57.80 mm, Clearance 0.06 mm, Compression Height 24.70 mm, Dome Volume +9.30 cm&sup3;, Compression Ratio 10.00:1, Displacement 249 cm&sup3;. Cross-Reference OEM Part Numbers include Wossner Part No. 8791D150, Lock P/N CW19, Pin P/N WP028, and Ring Set P/N 755XDS.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"75.5mm"},{"label":"Variant Id","value":"255547"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock54493_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock54493_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54493_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54493_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54493_4.jpg"],"description":"Wossner forged piston kit manufactured in Germany for 4-stroke engines. This piston offers superior strength and heat transfer efficiency with an elliptical design for even load distribution, reducing localized pressure and preventing piston collapse. Features include forged construction for enhanced durability, optimized heat transfer for improved performance, and a uniform bearing surface for reduced wear. Specifications: Bore Size 75.50 mm, Actual Bore 75.44 mm, Stroke 57.80 mm, Clearance 0.06 mm, Compression Height 24.70 mm, Dome Volume +9.30 cm&sup3;, Compression Ratio 10.00:1, Displacement 249 cm&sup3;. Cross-Reference OEM Part Numbers include Wossner Part No. 8791D150, Lock P/N CW19, Pin P/N WP028, and Ring Set P/N 755XDS.","descriptionMarkdown":"### Wossner Forged Piston Kit for Honda XL250S and XR250\n\nEnhance the performance and durability of your motorcycle with this high-quality Wossner forged piston kit. Expertly manufactured in Germany, this piston is engineered for superior strength and efficient heat transfer, crucial for demanding 4-stroke engines. The innovative elliptical design ensures an even distribution of load across the bearing surface, significantly reducing localized pressure and preventing piston collapse for extended engine life and optimal performance.\n\n**Key Features:**\n\n\t\n- Forged construction for exceptional durability and strength\n\t\n- Optimized heat transfer for improved engine performance\n\t\n- Elliptical design promotes uniform bearing surface and reduces wear\n\t\n- Specifically designed for 4-stroke engines\n\n**Specifications:**\n\n\t\n- Bore Size: 75.50 mm\n\t\n- Actual Bore: 75.44 mm\n\t\n- Stroke: 57.80 mm\n\t\n- Clearance: 0.06 mm\n\t\n- Compression Height: 24.70 mm\n\t\n- Dome Volume: +9.30 cm&sup3;\n\t\n- Compression Ratio: 10.00:1 (compared to OEM 9.10:1)\n\t\n- Displacement: 249 cm&sup3;\n\t\n- Origin: Made in Germany\n\n**Included Components:**\n\n\t\n- Wossner Part Number: 8791D150\n\t\n- Lock Piston Pin Retainer: CW19\n\t\n- Piston Pin: WP028\n\t\n- Ring Set: 755XDS","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-xr-xl-250-7550-wossner-8791d150-79-83","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/85a7ee02e187:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/85a7ee02e187:1"}},"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."]}}