{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"eea28539d42f","name":"PISTON 73-81 MAICO 400 78.00, FORGED WOSSNER 8047D100 KIT","sku":"56-W142+1.00","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":206.7,"formatted":"£206.70"},"summary":"Wossner 78.00mm forged piston kit is designed for Maico 400 models from 1973 to 1981. Engineered for strength and precision, this piston ensures efficient heat transfer to the cylinder walls, providing uniform expansion and reducing localized pressure. The elliptical design distributes thrust loads evenly, preventing piston collapse. Manufactured in Germany, it meets high-quality standards for reliable performance. Features include Wossner forged piston for superior strength and durability, optimized heat transfer for improved combustion efficiency, elliptical design for uniform bearing surface and reduced localized pressure, precision-engineered to prevent piston collapse, and Made in Germany. Specifications: Bore Size 78.00mm (77.92mm), Oversize +1.00mm, Displacement 386cc, Stroke 83.00mm, Clearance 0.08mm, Compression Ratio 2-stroke, Compression Height 41.70mm, Lock Part Number CW18, Pin Part Number WP039, Ring Set Part Number RSC7800. Theoretical Weight Not specified.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"78mm"},{"label":"Variant Id","value":"254688"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W142_2B1_2E00/01dc6bdda178e10c.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W142_2B1_2E00/01dc6bdda178e10c.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W142_2B1_2E00/6ff988dd1a0a6283.jpg"],"description":"Wossner 78.00mm forged piston kit is designed for Maico 400 models from 1973 to 1981. Engineered for strength and precision, this piston ensures efficient heat transfer to the cylinder walls, providing uniform expansion and reducing localized pressure. The elliptical design distributes thrust loads evenly, preventing piston collapse. Manufactured in Germany, it meets high-quality standards for reliable performance. Features include Wossner forged piston for superior strength and durability, optimized heat transfer for improved combustion efficiency, elliptical design for uniform bearing surface and reduced localized pressure, precision-engineered to prevent piston collapse, and Made in Germany. Specifications: Bore Size 78.00mm (77.92mm), Oversize +1.00mm, Displacement 386cc, Stroke 83.00mm, Clearance 0.08mm, Compression Ratio 2-stroke, Compression Height 41.70mm, Lock Part Number CW18, Pin Part Number WP039, Ring Set Part Number RSC7800. Theoretical Weight Not specified.","descriptionMarkdown":"### Wossner 78.00mm Forged Piston Kit for Maico 400 (1973-1981)\n\nEnhance the performance and durability of your Maico 400 motorcycle with this premium Wossner forged piston kit. Engineered in Germany, this piston is designed for superior strength and precise operation, ensuring optimal combustion and longevity.\n\nThe Wossner forged piston kit features an advanced design that promotes efficient heat transfer to the cylinder walls. This results in uniform expansion and reduces localized pressure, contributing to a more consistent and reliable engine performance. Its carefully crafted elliptical shape effectively distributes thrust loads, preventing piston collapse and ensuring a stable bearing surface under demanding conditions.\n\n**Key Features:**\n\n\t\n- Wossner Forged Piston: Offers exceptional strength and resilience for high-performance applications.\n\t\n- Optimized Heat Transfer: Promotes uniform expansion and efficient heat dissipation for improved combustion.\n\t\n- Elliptical Design: Ensures even bearing surface and reduces localized pressure for extended piston life.\n\t\n- Piston Collapse Prevention: Precision engineering minimizes the risk of piston failure.\n\t\n- German Manufacturing: Built to exacting standards for guaranteed quality and reliability.\n\n**Specifications:**\n\n\t\n- Bore Size: 78.00mm (nominal, actual 77.92mm)\n\t\n- Oversize: +1.00mm\n\t\n- Displacement: 386cc\n\t\n- Stroke: 83.00mm\n\t\n- Clearance: 0.08mm\n\t\n- Compression Ratio: 2-stroke\n\t\n- Compression Height: 41.70mm\n\t\n- Lock Part Number: CW18\n\t\n- Pin Part Number: WP039\n\t\n- Ring Set Part Number: RSC7800","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-73-81-maico-400-7800-forged-wossner-8047d100-kit","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/eea28539d42f:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/eea28539d42f: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."]}}