{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"39fbcc43604b","name":"PISTON KIT KXF RMZ 250 77.00 B, FORGED WOSNER 8582DB","sku":"56-W4842.B.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":182.86,"formatted":"£182.86"},"summary":"Wossner 77.01mm forged piston kit engineered for strength and durability with optimal heat transfer for efficient combustion chamber cooling. The elliptical design ensures a uniform bearing surface, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany for precision and reliability. Features forged construction for enhanced strength and longevity, optimized heat transfer for improved engine performance, and an elliptical design that prevents piston collapse and ensures even load distribution. Specifications include a bore size of 77.01mm, actual bore diameter of 76.97mm, displacement of 249 cm&sup3;, stroke of 53.60mm, clearance of 0.04mm, Wossner compression ratio of 12.10:1, OEM compression ratio of 12.60:1, dome volume of -5.90 cm&sup3;, compression height of 19.60mm, gasket part number D4013, lock part number CW16, pin part number WP059, ring set part number 770XAS, and rod part number P4002. Cross-reference OEM part numbers include 56-W4842.B.WO and Wossner part number 8582DB.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"256241"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4842_2EB_2EWO/ae69a034815e4299.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4842_2EB_2EWO/ae69a034815e4299.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4842_2EB_2EWO/ba58e1c349d89334.jpg"],"description":"Wossner 77.01mm forged piston kit engineered for strength and durability with optimal heat transfer for efficient combustion chamber cooling. The elliptical design ensures a uniform bearing surface, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany for precision and reliability. Features forged construction for enhanced strength and longevity, optimized heat transfer for improved engine performance, and an elliptical design that prevents piston collapse and ensures even load distribution. Specifications include a bore size of 77.01mm, actual bore diameter of 76.97mm, displacement of 249 cm&sup3;, stroke of 53.60mm, clearance of 0.04mm, Wossner compression ratio of 12.10:1, OEM compression ratio of 12.60:1, dome volume of -5.90 cm&sup3;, compression height of 19.60mm, gasket part number D4013, lock part number CW16, pin part number WP059, ring set part number 770XAS, and rod part number P4002. Cross-reference OEM part numbers include 56-W4842.B.WO and Wossner part number 8582DB.","descriptionMarkdown":"### Wossner 77.01mm Forged Piston Kit\n\nThis Wossner forged piston kit is engineered for superior strength and durability, offering optimal performance for your motorcycle. Its design focuses on efficient heat transfer for improved combustion chamber cooling. The unique elliptical shape ensures a uniform bearing surface, effectively distributing thrust loads and preventing piston collapse for enhanced longevity.\n\n**Key Features:**\n\n\t\n- Forged Construction: Provides exceptional strength and extended lifespan.\n\t\n- Optimized Heat Transfer: Promotes efficient cooling of the combustion chamber, leading to better performance.\n\t\n- Elliptical Design: Prevents piston collapse by distributing loads evenly and creating a uniform bearing surface.\n\t\n- Precision Manufacturing: Made in Germany to ensure high-quality standards and reliability.\n\n**Specifications:**\n\n\t\n- Bore Size: 77.01mm\n\t\n- Actual Bore Diameter: 76.97mm\n\t\n- Displacement: 249 cm&sup3;\n\t\n- Stroke: 53.60mm\n\t\n- Clearance: 0.04mm\n\t\n- Wossner Compression Ratio: 12.10:1\n\t\n- OEM Compression Ratio: 12.60:1\n\t\n- Dome Volume: -5.90 cm&sup3;\n\t\n- Compression Height: 19.60mm\n\t\n- Gasket Part Number: D4013\n\t\n- Lock Part Number: CW16\n\t\n- Pin Part Number: WP059\n\t\n- Ring Set Part Number: 770XAS\n\t\n- Rod Part Number: P4002\n\n**Product Identifiers:**\n\n\t\n- Part Number: \n\t\n- Wossner Part Number: 8582DB","weightGrams":null,"fitments":[{"make":"KAWASAKI","model":"KX 250F","cc":null,"notes":null,"years":"2004–2009"},{"make":"SUZUKI","model":"RM-Z 250","cc":null,"notes":null,"years":"2004–2009"}],"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-kxf-rmz-250-7700-b-forged-wosner-8582db","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/39fbcc43604b:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/39fbcc43604b: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."]}}