{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"e56c42aa4492","name":"PISTON KIT 78-80 CR250 70.50, FORGED WOSSNER 8154D050, ATC250R 81-84","sku":"56-W431+P2.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":153.35,"formatted":"£153.35"},"summary":"Wossner forged piston kit for 2-stroke engines. Manufactured in Germany, this piston offers superior strength and heat transfer efficiency with an elliptical design for even load distribution, reducing localized pressure and preventing piston collapse. Features include forged construction, optimized heat transfer, and an elliptical design for uniform bearing surface and reduced wear. Specifications: Bore Size 70.50 mm, Actual Bore 70.44 mm, Stroke 64.40 mm, Clearance 0.06 mm, Compression Height 32.50 mm, Compression Ratio 2-stroke, Displacement 123 cm&sup3;. Wossner Part No. 8154D050, Lock P/N CW18, Pin P/N WP033, Ring Set P/N RSB7050 x 2. Weight 352g.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"70.5mm"},{"label":"Variant Id","value":"255564"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock54510_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock54510_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54510_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54510_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54510_4.jpg"],"description":"Wossner forged piston kit for 2-stroke engines. Manufactured in Germany, this piston offers superior strength and heat transfer efficiency with an elliptical design for even load distribution, reducing localized pressure and preventing piston collapse. Features include forged construction, optimized heat transfer, and an elliptical design for uniform bearing surface and reduced wear. Specifications: Bore Size 70.50 mm, Actual Bore 70.44 mm, Stroke 64.40 mm, Clearance 0.06 mm, Compression Height 32.50 mm, Compression Ratio 2-stroke, Displacement 123 cm&sup3;. Wossner Part No. 8154D050, Lock P/N CW18, Pin P/N WP033, Ring Set P/N RSB7050 x 2. Weight 352g.","descriptionMarkdown":"### Wossner Forged Piston Kit for Honda CR250R and ATC250R\n\nEnhance the performance and durability of your motorcycle or ATV with this Wossner forged piston kit. Expertly manufactured in Germany, this high-quality piston is engineered for superior strength and efficient heat transfer, ensuring optimal engine operation under demanding conditions. The innovative elliptical design distributes load evenly, minimizing localized pressure points and effectively preventing piston collapse for extended engine life.\n\n**Key Features:**\n\n \n- Forged Construction: Provides exceptional durability and increased strength compared to cast pistons.\n \n- Optimized Heat Transfer: Promotes efficient cooling, leading to improved engine performance and reliability.\n \n- Elliptical Design: Creates a uniform bearing surface, reducing wear and preventing premature failure.\n \n- Designed for 2-Stroke Engines: Specifically engineered for the demands of 2-stroke powerplants.\n\n**Specifications:**\n\n \n- Bore Size: 70.50 mm\n \n- Actual Bore: 70.44 mm\n \n- Stroke: 64.40 mm\n \n- Clearance: 0.06 mm\n \n- Compression Height: 32.50 mm\n \n- Compression Ratio: 2-stroke\n \n- Displacement: 123 cm&sup3;\n \n- Country of Origin: Germany\n\n**Part Numbers:**\n\n \n- Wossner Part Number: 8154D050\n \n- Lock Pin Number: CW18\n \n- Piston Pin Number: WP033\n \n- Ring Set Number: RSB7050 (x2)","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-78-80-cr250-7050-forged-wossner-8154d050-atc250r-81-84","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/e56c42aa4492:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/e56c42aa4492:1"}},"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."]}}