{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"63d765a57b90","name":"PISTON KIT 77-81 RM PE250 67.0, FORGED WOSSNER 8194DA 12110-41603","sku":"56-W474+P0.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":153.35,"formatted":"£153.35"},"summary":"Wossner 67mm Bore Piston Kit (PN# 8194DA) is a forged piston designed for high strength, efficient heat transfer, and durability. 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. Features include a high-strength forged piston for durability and performance, optimized heat transfer for efficient combustion, and an elliptical design that prevents piston collapse and ensures even load distribution. Specifications: Bore: 67mm, Actual diameter: 66.94mm, Display (cm³): 246, Stroke (mm): 55.50, Clearance (mm): 0.05, Compression Ratio: OEM, OEM Compression Ratio: 11.10:1, Dome Volume (cm³): -0.20, Compression Height (mm): 22.80. Cross-Reference OEM Part Numbers: Lock: CW18, Pin: WP033, Ring Set: RSB6700 X 2, OEM Part Numbers: 12110-41603, 405M06700.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"67mm"},{"label":"Variant Id","value":"256026"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock54972_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock54972_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54972_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54972_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54972_4.jpg"],"description":"Wossner 67mm Bore Piston Kit (PN# 8194DA) is a forged piston designed for high strength, efficient heat transfer, and durability. 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. Features include a high-strength forged piston for durability and performance, optimized heat transfer for efficient combustion, and an elliptical design that prevents piston collapse and ensures even load distribution. Specifications: Bore: 67mm, Actual diameter: 66.94mm, Display (cm³): 246, Stroke (mm): 55.50, Clearance (mm): 0.05, Compression Ratio: OEM, OEM Compression Ratio: 11.10:1, Dome Volume (cm³): -0.20, Compression Height (mm): 22.80. Cross-Reference OEM Part Numbers: Lock: CW18, Pin: WP033, Ring Set: RSB6700 X 2, OEM Part Numbers: 12110-41603, 405M06700.","descriptionMarkdown":"### Wossner Forged Piston Kit\n\nEnhance the performance and durability of your motorcycle with the Wossner 67mm Bore Piston Kit. Engineered for demanding applications, this forged piston offers superior strength and efficient heat transfer for optimal engine operation. Its innovative elliptical design ensures a uniform bearing surface even under extreme temperatures, 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 exceptional durability and performance\n\t\n- Optimized heat transfer for improved combustion efficiency\n\t\n- Elliptical piston design to prevent collapse and ensure even load distribution\n\t\n- Precision manufactured in Germany\n\t\n- Meets OEM compression standards\n\n**Specifications:**\n\n\t\n- Bore Size: 67.0mm\n\t\n- Actual Piston Diameter: 66.94mm\n\t\n- Displacement: 246 cm&sup3;\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- Compression Height: 22.80mm\n\n**Included Components:**\n\n\t\n- Lock: CW18\n\t\n- Pin: WP033\n\t\n- Ring Set: RSB6700 (x2)\n\n**Cross-Reference OEM Part Numbers:**\n\n\t\n- 12110-41603\n\t\n- 405M06700","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-pe250-670-forged-wossner-8194da-12110-41603","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/63d765a57b90:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/63d765a57b90:1"}},"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."]}}