{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"cf34e368d401","name":"PISTON KIT 83-87 YZ250 68.50, WOSSNER 8133D050 YAMAHA MX","sku":"56-W560+050.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":153.35,"formatted":"£153.35"},"summary":"This Wossner 68.50mm forged piston kit features an elliptical design for uniform bearing surface during thermal expansion, reducing localised pressure and distributing thrust loads evenly to prevent piston collapse. It is optimised for effective heat transfer from the combustion chamber to the cylinder walls. Manufactured in Germany, this piston kit is designed for enhanced strength and longevity. Bore: 68.50mm, Actual diameter: 68.44mm, Displacement: 246 cm&sup3;, Stroke: 68.00mm, Clearance: 0.06mm, Compression height: 36.00mm, Compression ratio: 2-stroke. Includes lock CW18, pin WP033, ring set RDB6850, and rod P2048. Wossner part number: 8133D050. Piston Kit Part No.: 56-W560+050.WO. Weight: 204 grams.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"68.5mm"},{"label":"Variant Id","value":"256831"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W560_2B050_2EWO/27ba80fa6d982531.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W560_2B050_2EWO/27ba80fa6d982531.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W560_2B050_2EWO/613e54e3763e637c.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W560_2B050_2EWO/d5096fc2ee903364.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W560_2B050_2EWO/ca894439345429ca.jpg"],"description":"This Wossner 68.50mm forged piston kit features an elliptical design for uniform bearing surface during thermal expansion, reducing localised pressure and distributing thrust loads evenly to prevent piston collapse. It is optimised for effective heat transfer from the combustion chamber to the cylinder walls. Manufactured in Germany, this piston kit is designed for enhanced strength and longevity. Bore: 68.50mm, Actual diameter: 68.44mm, Displacement: 246 cm&sup3;, Stroke: 68.00mm, Clearance: 0.06mm, Compression height: 36.00mm, Compression ratio: 2-stroke. Includes lock CW18, pin WP033, ring set RDB6850, and rod P2048. Wossner part number: 8133D050. Piston Kit Part No.: 56-W560+050.WO. Weight: 204 grams.","descriptionMarkdown":"### Wossner 68.50mm Forged Piston Kit for Yamaha YZ250\n\nEnhance the performance and durability of your Yamaha YZ250 with this precision-engineered Wossner forged piston kit. Designed as a 0.50mm oversize replacement, this kit is manufactured in Germany to exacting standards for superior quality and reliability.\n\nThe advanced forged construction provides exceptional strength, ensuring this piston can withstand the demands of high-performance riding. Its innovative elliptical design is crucial for maintaining uniform bearing surface contact, even under extreme thermal expansion. This intelligent design minimizes localized pressure points and evenly distributes thrust loads, effectively preventing piston collapse and promoting longevity.\n\nFurthermore, this Wossner piston is optimized for efficient heat transfer from the combustion chamber directly to the cylinder walls. This characteristic is vital for high-performance two-stroke engines, contributing to consistent power delivery and overall engine health.\n\n### Key Features:\n\n\t\n- Forged piston construction for superior strength and extended lifespan.\n\t\n- Elliptical design ensures consistent surface contact during thermal expansion.\n\t\n- Minimizes localized stress and distributes thrust loads evenly for improved durability.\n\t\n- Optimized for efficient heat transfer from the combustion chamber to cylinder walls.\n\t\n- Precision manufactured in Germany for uncompromising quality.\n\n### Specifications:\n\n\t\n- Bore Size: 68.50mm\n\t\n- Actual Piston Diameter: 68.44mm\n\t\n- Engine Displacement: 246 cm&sup3;\n\t\n- Stroke: 68.00mm\n\t\n- Piston Clearance: 0.06mm\n\t\n- Compression Height: 36.00mm\n\t\n- Compression Ratio Type: 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-83-87-yz250-6850-wossner-8133d050-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/cf34e368d401:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/cf34e368d401:1"}},"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."]}}