{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"e10133863466","name":"PISTON KIT 77-81 RM PE250 67.5, FORGED WOSSNER 8194D050","sku":"56-W474+P2.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":153.35,"formatted":"£153.35"},"summary":"Wossner 67.50mm Bore Piston Kit (PN 8194D050) is a forged piston designed for durability and performance. Its elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany, this piston meets OEM compression standards. Specifications include a bore of 67.50mm, actual diameter of 67.44mm, display (cm³) of 398, stroke (mm) of 55.50, clearance (mm) of 0.05, compression ratio of OEM (11.10:1), dome volume (cm³) of -0.20, and compression height (mm) of 22.80. This kit includes lock CW18, pin WP033, and two ring sets RSB6750.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"67.5mm"},{"label":"Variant Id","value":"256028"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock54974_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock54974_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54974_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54974_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54974_4.jpg"],"description":"Wossner 67.50mm Bore Piston Kit (PN 8194D050) is a forged piston designed for durability and performance. Its elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany, this piston meets OEM compression standards. Specifications include a bore of 67.50mm, actual diameter of 67.44mm, display (cm³) of 398, stroke (mm) of 55.50, clearance (mm) of 0.05, compression ratio of OEM (11.10:1), dome volume (cm³) of -0.20, and compression height (mm) of 22.80. This kit includes lock CW18, pin WP033, and two ring sets RSB6750.","descriptionMarkdown":"### Wossner Forged Piston Kit 67.50mm Bore\n\nUpgrade your motorcycle's performance with this high-strength forged piston kit from Wossner. Engineered for durability and efficiency, this piston is manufactured in Germany to meet OEM compression standards. The advanced elliptical design ensures uniform bearing surfaces under heat expansion, effectively reducing localized pressure and evenly distributing thrust loads to prevent piston collapse.\n\n**Key Features:**\n\n\t\n- High-strength forged construction for superior durability and performance.\n\t\n- Optimized heat transfer for efficient combustion.\n\t\n- Innovative elliptical design prevents piston collapse and ensures even load distribution.\n\t\n- Manufactured in Germany to exacting standards.\n\n**Specifications:**\n\n\t\n- Bore Diameter: 67.50mm\n\t\n- Actual Piston Diameter: 67.44mm\n\t\n- Compression Height: 22.80mm\n\t\n- Stroke: 55.50mm\n\t\n- Piston Clearance: 0.05mm\n\t\n- Compression Ratio: OEM\n\t\n- OEM Compression Ratio: 11.10:1\n\t\n- Dome Volume: -0.20 cm&sup3;\n\t\n- Displacement Volume: 398 cm&sup3;","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-77-81-rm-pe250-675-forged-wossner-8194d050","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/e10133863466:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/e10133863466:1"}},"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."]}}