{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"3e72fb15ca3b","name":"PISTON KIT 78-80 CR250 71.50, FORGED WOSSNER 8154D150, HONDA ATC250R 81-84","sku":"56-W431+P6.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":159.11,"formatted":"£159.11"},"summary":"Wossner forged piston kit. Forged construction for enhanced durability and strength. Optimized heat transfer for improved performance. Elliptical design for uniform bearing surface and reduced wear. Designed for 2-stroke engines. Bore Size: 71.50 mm. Actual Bore: 71.44 mm. Stroke: 64.40 mm. Clearance: 0.06 mm. Compression Height: 32.50 mm. Compression Ratio: 2-stroke. Displacement: 123 cm³. Made in Germany. Wossner Part No.: 8154D150. Lock P/N: CW18. Pin P/N: WP033. Ring Set P/N: RSB7150 x 2.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"71.5mm"},{"label":"Variant Id","value":"255569"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock54515_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock54515_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54515_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54515_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54515_4.jpg"],"description":"Wossner forged piston kit. Forged construction for enhanced durability and strength. Optimized heat transfer for improved performance. Elliptical design for uniform bearing surface and reduced wear. Designed for 2-stroke engines. Bore Size: 71.50 mm. Actual Bore: 71.44 mm. Stroke: 64.40 mm. Clearance: 0.06 mm. Compression Height: 32.50 mm. Compression Ratio: 2-stroke. Displacement: 123 cm³. Made in Germany. Wossner Part No.: 8154D150. Lock P/N: CW18. Pin P/N: WP033. Ring Set P/N: RSB7150 x 2.","descriptionMarkdown":"### Wossner Forged Piston Kit for Honda CR250R and ATC250R\n\nThis high-performance forged piston kit from Wossner is engineered for durability and optimal engine performance. Manufactured in Germany, it utilizes advanced forging techniques to create a piston that is both exceptionally strong and efficient at transferring heat. The innovative elliptical design ensures even load distribution across the piston's surface, minimizing localized pressure points and significantly reducing the risk of piston collapse under stress.\n\n#### Key Features:\n\n\t\n- Forged Construction: Provides superior strength and enhanced durability compared to cast pistons.\n\t\n- Optimized Heat Transfer: Designed for efficient heat dissipation, contributing to improved engine performance and longevity.\n\t\n- Elliptical Design: Creates a uniform bearing surface, leading to reduced wear and increased operational lifespan.\n\t\n- 2-Stroke Engine Specific: Precisely engineered for the demands of 2-stroke engines.\n\n#### Specifications:\n\n\t\n- Bore Size: 71.50 mm\n\t\n- Actual Bore: 71.44 mm\n\t\n- Stroke: 64.40 mm\n\t\n- Clearance: 0.06 mm\n\t\n- Compression Height: 32.50 mm\n\t\n- Compression Ratio: 2-stroke\n\t\n- Displacement: 123 cm&sup3;\n\t\n- Manufacturing Origin: Made in Germany\n\n#### Component Details:\n\n\t\n- Wossner Part Number: 8154D150\n\t\n- Lock Ring Part Number: CW18\n\t\n- Piston Pin Part Number: WP033\n\t\n- Ring Set Part Number: RSB7150 (Quantity: 2)","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-cr250-7150-forged-wossner-8154d150-honda-atc250r-81-84","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/3e72fb15ca3b:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/3e72fb15ca3b: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."]}}