{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"706dbebc6318","name":"PISTON KIT 06-09 CRF250R X 78, FORGED WOSSNER 8656DC","sku":"56-W4830+00C.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":182.86,"formatted":"£182.86"},"summary":"Wossner 78.02mm high-compression forged piston kit engineered for enhanced engine performance and optimal heat transfer for efficient cooling. The elliptical design provides a uniform bearing surface, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany for precision and reliability. Features include high-compression design, forged construction for strength, optimized heat transfer, and an elliptical design for even load distribution. Specifications: Bore Size 78.02mm, Actual Bore Diameter 77.98mm, Displacement 249 cm&sup3;, Stroke 52.20mm, Clearance 0.04mm, Wossner Compression Ratio 13.50:1, OEM Compression Ratio 12.90:1, Dome Volume -0.90 cm&sup3;, Compression Height 24.00mm, Theoretical Weight 19.00g. Gasket Part Number D4004, Lock Part Number CW16, Pin Part Number WP059, Ring Set Part Number 780XAS. Cross-reference OEM Part Numbers: 56-W4830+00C.WO, Wossner Part No: 8656DC.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"78mm"},{"label":"Variant Id","value":"256218"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4830_2B00C_2EWO/412d448f1e1b87d5.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4830_2B00C_2EWO/412d448f1e1b87d5.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4830_2B00C_2EWO/980e34bb376f33b0.jpg"],"description":"Wossner 78.02mm high-compression forged piston kit engineered for enhanced engine performance and optimal heat transfer for efficient cooling. The elliptical design provides a uniform bearing surface, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany for precision and reliability. Features include high-compression design, forged construction for strength, optimized heat transfer, and an elliptical design for even load distribution. Specifications: Bore Size 78.02mm, Actual Bore Diameter 77.98mm, Displacement 249 cm&sup3;, Stroke 52.20mm, Clearance 0.04mm, Wossner Compression Ratio 13.50:1, OEM Compression Ratio 12.90:1, Dome Volume -0.90 cm&sup3;, Compression Height 24.00mm, Theoretical Weight 19.00g. Gasket Part Number D4004, Lock Part Number CW16, Pin Part Number WP059, Ring Set Part Number 780XAS. Cross-reference OEM Part Numbers: 56-W4830+00C.WO, Wossner Part No: 8656DC.","descriptionMarkdown":"### Wossner 78.02mm High-Compression Forged Piston Kit\n\n Elevate your engine's performance with the Wossner 78.02mm high-compression forged piston kit. This precision-engineered component is designed for optimal heat transfer, ensuring efficient cooling of the combustion chamber. Its innovative elliptical design promotes a uniform bearing surface, effectively reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany, this piston kit embodies the highest standards of precision and reliability.\n\n### Key Features:\n\n \n- High-Compression Design: Boosts engine performance for a more powerful ride.\n \n- Forged Construction: Provides enhanced strength and exceptional longevity.\n \n- Optimized Heat Transfer: Ensures efficient cooling of the combustion chamber for sustained performance.\n \n- Elliptical Design: Prevents piston collapse by ensuring even load distribution across the bearing surface.\n \n- German Manufacturing: Guarantees superior quality and precision engineering.\n\n### Specifications:\n\n \n- Bore Size: 78.02mm\n \n- Actual Bore Diameter: 77.98mm\n \n- Displacement: 249 cm&sup3;\n \n- Stroke: 52.20mm\n \n- Clearance: 0.04mm\n \n- Wossner Compression Ratio: 13.50:1\n \n- OEM Compression Ratio: 12.90:1\n \n- Dome Volume: -0.90 cm&sup3;\n \n- Compression Height: 24.00mm\n \n- Theoretical Weight: 19.00g\n \n- Included Gasket Part Number: D4004\n \n- Included Lock Part Number: CW16\n \n- Included Pin Part Number: WP059\n \n- Included Ring Set Part Number: 780XAS","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-06-09-crf250r-x-78-forged-wossner-8656dc","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/706dbebc6318:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/706dbebc6318:1"}},"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."]}}