{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"48102edcde18","name":"PISTON KIT 15-16 KX250F 77 HC, HIGH COMPRESSION, WOSSNER 8922DA KXF250 13001-0747","sku":"56-W331.A.WO.HC","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":172.51,"formatted":"£172.51"},"summary":"Wossner 8922DA high-compression forged piston kit with a 77mm bore. Features include high-compression design for enhanced performance, forged construction for increased strength and reliability, optimized heat transfer for efficient combustion, and an elliptical design for uniform bearing surface and even thrust load distribution. Manufactured in Germany. Specifications include: Bore Size 77mm, Clearance 0.05mm, Compression Ratio (Wossner) 14.50:1, OEM Compression Ratio 13.80:1, Dome Volume -1.78 cm&sup3;, Compression Height 19.80mm, Stroke 53.60mm, Theoretical Weight 136.00g. Cross-reference OEM Part Numbers: Wossner Part No. 8922DA, Lock Part No. CW16, Pin Part No. WP087, Ring Set Part No. 770XAS-2, OEM Part No. 13001-0747, Wiseco Part No. 40135M07700.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"255324"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W331_2EA_2EWO_2EHC/032cb234db042724.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W331_2EA_2EWO_2EHC/032cb234db042724.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W331_2EA_2EWO_2EHC/2816f459f94bbe8a.jpg"],"description":"Wossner 8922DA high-compression forged piston kit with a 77mm bore. Features include high-compression design for enhanced performance, forged construction for increased strength and reliability, optimized heat transfer for efficient combustion, and an elliptical design for uniform bearing surface and even thrust load distribution. Manufactured in Germany. Specifications include: Bore Size 77mm, Clearance 0.05mm, Compression Ratio (Wossner) 14.50:1, OEM Compression Ratio 13.80:1, Dome Volume -1.78 cm&sup3;, Compression Height 19.80mm, Stroke 53.60mm, Theoretical Weight 136.00g. Cross-reference OEM Part Numbers: Wossner Part No. 8922DA, Lock Part No. CW16, Pin Part No. WP087, Ring Set Part No. 770XAS-2, OEM Part No. 13001-0747, Wiseco Part No. 40135M07700.","descriptionMarkdown":"### Wossner High Compression Forged Piston Kit 77mm Bore\n\nUpgrade your motorcycle's performance with this Wossner high-compression forged piston kit. Engineered for increased power output, this kit features a 77mm bore and a high-compression design for enhanced combustion efficiency. The piston's advanced elliptical design ensures uniform bearing surface expansion, effectively reducing localized pressure and preventing piston collapse for greater reliability and longevity.\n\nManufactured in Germany to exacting standards, this piston kit is built for exceptional strength, durability, and superior heat transfer. Experience a noticeable boost in performance and enjoy the confidence that comes with a precision-engineered component.\n\n#### Key Features:\n\n\t\n- High-compression design for enhanced engine performance\n\t\n- Forged construction ensures superior strength and reliability\n\t\n- Advanced elliptical design for uniform bearing surface expansion and even thrust load distribution\n\t\n- Optimized heat transfer promotes efficient combustion\n\t\n- Precision manufactured in Germany for quality assurance\n\n#### Specifications:\n\n\t\n- Bore Size: 77mm\n\t\n- Clearance: 0.05mm\n\t\n- Compression Ratio (Wossner): 14.50:1\n\t\n- OEM Compression Ratio: 13.80:1\n\t\n- Dome Volume: -1.78 cm&sup3;\n\t\n- Compression Height: 19.80mm\n\t\n- Stroke: 53.60mm\n\t\n- Theoretical Weight: 136.00g\n\n#### Cross-Reference Part Numbers:\n\n\t\n- Wossner Part No.: 8922DA\n\t\n- OEM Part No.: 13001-0747","weightGrams":null,"fitments":[{"make":"KAWASAKI","model":"KX 250F","cc":null,"notes":null,"years":"2015–2016"}],"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-15-16-kx250f-77-hc-high-compression-wossner-8922da-kxf250-13001-0747","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/48102edcde18:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/48102edcde18:1"}},"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."]}}