{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"e1e0fdd136a9","name":"PISTON KIT 1983 CR80 49.50, FORGED WOSSENR 8278DA","sku":"56-W493+000.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":75.72,"formatted":"£75.72"},"summary":"Wossner 8278DA forged piston kit with a 49.50mm bore. Manufactured in Germany, this piston ensures strength, efficient thermal performance, and reliability. Its elliptical profile evenly distributes pressure during heat expansion, reducing the risk of piston failure. Features include a forged piston for durability and high performance, designed to optimize heat transfer from combustion to cylinder walls. The elliptical shape provides a uniform bearing surface under heat expansion, minimizing localized pressure and the risk of piston collapse. Specifications include a bore of 49.50 mm, actual bore diameter of 49.45 mm, display of 79 cm³, hub stroke of 41.40 mm, clearance of 0.05 mm, compression height of 25.00 mm, dome volume not specified, Wossner compression ratio of 2-stroke, and OEM compression ratio of 2-stroke. Cross-reference OEM part numbers are Piston: 8278DA, Lock: CW12, Pin: WP091, Ring Set: RSB4950 x 2, Needle Bearing: N1004, and Part No.: 56-W493+000.WO.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"49.5mm"},{"label":"Variant Id","value":"256400"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55346_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55346_1.jpg"],"description":"Wossner 8278DA forged piston kit with a 49.50mm bore. Manufactured in Germany, this piston ensures strength, efficient thermal performance, and reliability. Its elliptical profile evenly distributes pressure during heat expansion, reducing the risk of piston failure. Features include a forged piston for durability and high performance, designed to optimize heat transfer from combustion to cylinder walls. The elliptical shape provides a uniform bearing surface under heat expansion, minimizing localized pressure and the risk of piston collapse. Specifications include a bore of 49.50 mm, actual bore diameter of 49.45 mm, display of 79 cm³, hub stroke of 41.40 mm, clearance of 0.05 mm, compression height of 25.00 mm, dome volume not specified, Wossner compression ratio of 2-stroke, and OEM compression ratio of 2-stroke. Cross-reference OEM part numbers are Piston: 8278DA, Lock: CW12, Pin: WP091, Ring Set: RSB4950 x 2, Needle Bearing: N1004, and Part No.: 56-W493+000.WO.","descriptionMarkdown":"### Wossner Forged Piston Kit 49.50mm Bore\n\nExperience enhanced strength, superior thermal performance, and exceptional reliability with this Wossner forged piston kit. Engineered in Germany, this high-quality piston is designed to optimize heat transfer and withstand demanding conditions.\n\nThe innovative elliptical profile of the piston ensures even pressure distribution during heat expansion. This advanced design significantly reduces localized pressure points, minimizing the risk of piston failure and promoting a longer service life.\n\n**Key Features:**\n\n\t\n- Forged construction for maximum durability and high performance.\n\t\n- Optimized for efficient heat transfer from combustion to cylinder walls.\n\t\n- Elliptical shape provides a uniform bearing surface under heat expansion.\n\t\n- Minimizes localized pressure and reduces the risk of piston collapse.\n\t\n- Precision manufactured in Germany.\n\n**Specifications:**\n\n\t\n- Bore: 49.50 mm\n\t\n- Actual Bore Diameter: 49.45 mm\n\t\n- Display (Displacement): 79 cm&sup3;\n\t\n- Hub Stroke: 41.40 mm\n\t\n- Clearance: 0.05 mm\n\t\n- Compression Height: 25.00 mm\n\t\n- Wossner Compression Ratio: 2-stroke\n\t\n- OEM Compression Ratio: 2-stroke","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-1983-cr80-4950-forged-wossenr-8278da","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/e1e0fdd136a9:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/e1e0fdd136a9:1"}},"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."]}}