{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"bdf6a4f4afcb","name":"PISTON KIT 86-04 XR250 74.00, FORGED WOSSNER 8793D100","sku":"56-W4466+100.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":201.1,"formatted":"£201.10"},"summary":"Wossner forged piston kit with an 86mm bore size designed for 4-stroke engines. 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. Specifications include 74.00 mm bore size (+1.00 mm oversize), 73.94 mm actual bore, 59.50 mm stroke, 0.06 mm clearance, 25.00 mm compression height, +6.00 cm³ dome volume, 10.50:1 compression ratio, 9.30:1 OEM compression ratio, and 249 cm³ displacement. Wossner part number 8793D100. Cross-reference OEM part numbers include Lock P/N CW17, Pin P/N WP090, Ring Set P/N 740XDS, OEM Piston 13101-KCE-670, Oversize 0.25 Piston 13102-KCE-305, Oversize 0.50 Piston 13103-KCE-305, Standard Ring Set 13011-KCZ-305, Oversize 0.25 Ring Set 13012-KCE-305, Oversize 0.50 Ring Set 13013-KCE-305, and Piston Pin 13111-KK0-000.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"74mm"},{"label":"Variant Id","value":"255654"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock54600_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock54600_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54600_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54600_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54600_4.jpg"],"description":"Wossner forged piston kit with an 86mm bore size designed for 4-stroke engines. 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. Specifications include 74.00 mm bore size (+1.00 mm oversize), 73.94 mm actual bore, 59.50 mm stroke, 0.06 mm clearance, 25.00 mm compression height, +6.00 cm³ dome volume, 10.50:1 compression ratio, 9.30:1 OEM compression ratio, and 249 cm³ displacement. Wossner part number 8793D100. Cross-reference OEM part numbers include Lock P/N CW17, Pin P/N WP090, Ring Set P/N 740XDS, OEM Piston 13101-KCE-670, Oversize 0.25 Piston 13102-KCE-305, Oversize 0.50 Piston 13103-KCE-305, Standard Ring Set 13011-KCZ-305, Oversize 0.25 Ring Set 13012-KCE-305, Oversize 0.50 Ring Set 13013-KCE-305, and Piston Pin 13111-KK0-000.","descriptionMarkdown":"### Wossner 74.00mm Forged Piston Kit for Honda XR250\n\nEnhance the performance and durability of your motorcycle with this premium forged piston kit from Wossner. Expertly manufactured in Germany, this piston is engineered for superior strength and efficient heat transfer, designed to meet the demands of high-performance 4-stroke engines.\n\nThe innovative elliptical design of this piston ensures an even load distribution across its surface. This design significantly reduces localized pressure points, preventing premature wear and potential piston collapse, leading to a longer service life for your engine.\n\n#### Key Features:\n\n\t\n- Forged Construction: Provides exceptional strength and durability, outperforming cast pistons.\n\t\n- Optimized Heat Transfer: Promotes efficient cooling, allowing for sustained peak performance.\n\t\n- Elliptical Design: Creates a uniform bearing surface, minimizing wear and extending piston life.\n\t\n- High-Quality Materials: Ensures reliability and longevity.\n\t\n- Engineered for 4-Stroke Engines: Specifically designed for optimal performance in 4-stroke applications.\n\n#### Specifications:\n\n\t\n- Bore Size: 74.00 mm (+1.00 mm oversize)\n\t\n- Actual Bore: 73.94 mm\n\t\n- Stroke: 59.50 mm\n\t\n- Clearance: 0.06 mm\n\t\n- Compression Height: 25.00 mm\n\t\n- Dome Volume: +6.00 cm&sup3;\n\t\n- Compression Ratio: 10.50:1 (compared to OEM 9.30:1)\n\t\n- Displacement: 249 cm&sup3;\n\t\n- Manufactured In: Germany","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-86-04-xr250-7400-forged-wossner-8793d100","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/bdf6a4f4afcb:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/bdf6a4f4afcb: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."]}}