{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"273920f0b1f5","name":"PISTON 73-81 MAICO 400 77.00, FORGED WOSSNER 8047DA KIT","sku":"56-W142+0.00","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":195.02,"formatted":"£195.02"},"summary":"Wossner 77.00mm forged piston kit for Maico 400 models (1973-1981). Features superior strength, optimized heat transfer for improved combustion efficiency, and an elliptical design for uniform bearing surface and reduced localized pressure. Precision-engineered to prevent piston collapse. Made in Germany. Specifications: Bore Size 77.00mm (76.92mm), Standard Size (STD), 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 RSC7700. Weight 412g.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"254686"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W142_2B0_2E00/01dc6bdda178e10c.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W142_2B0_2E00/01dc6bdda178e10c.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W142_2B0_2E00/6ff988dd1a0a6283.jpg"],"description":"Wossner 77.00mm forged piston kit for Maico 400 models (1973-1981). Features superior strength, optimized heat transfer for improved combustion efficiency, and an elliptical design for uniform bearing surface and reduced localized pressure. Precision-engineered to prevent piston collapse. Made in Germany. Specifications: Bore Size 77.00mm (76.92mm), Standard Size (STD), 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 RSC7700. Weight 412g.","descriptionMarkdown":"### Wossner 77.00mm Forged Piston Kit for Maico 400\n\nEnhance the performance and longevity of your Maico 400 motorcycle with this high-quality forged piston kit from Wossner. Engineered for strength and precision, this piston is designed to ensure optimal engine operation. The advanced design promotes efficient heat transfer to the cylinder walls, leading to uniform expansion and minimizing localized pressure points. Its unique elliptical shape effectively distributes thrust loads, preventing piston collapse and ensuring consistent contact. Manufactured in Germany, this piston kit represents a commitment to superior quality and reliable performance for your vintage Maico.\n\n#### Key Features:\n\n\t\n- Wossner Forged Piston: Provides exceptional strength and durability for demanding riding conditions.\n\t\n- Optimized Heat Transfer: Ensures efficient heat dissipation to the cylinder walls, promoting consistent engine temperatures and improved combustion.\n\t\n- Elliptical Design: Distributes thrust loads evenly, creating a uniform bearing surface and reducing localized stress.\n\t\n- Piston Collapse Prevention: Precision engineering safeguards against piston distortion under high operating pressures.\n\t\n- German Manufacturing: Built to rigorous quality standards for dependable performance.\n\t\n- Standard Size (STD): Designed as a direct replacement for standard bore sizes.\n\n#### Specifications:\n\n\t\n- Bore Size: 77.00mm (Nominal), 76.92mm (Actual)\n\t\n- Displacement: 386cc\n\t\n- Stroke: 83.00mm\n\t\n- Piston 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: RSC7700","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-400-7700-forged-wossner-8047da-kit","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/273920f0b1f5:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/273920f0b1f5:1"}},"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."]}}