{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"96f6bb085c9d","name":"PISTON KIT 92-98 YZ250 70.00, WOSSNER 8023D200 YAMAHA MX","sku":"56-W677_200_WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":155.33,"formatted":"£155.33"},"summary":"This Wossner forged piston kit features a 70.00mm bore size (+2.00mm oversize). Manufactured in Germany, the piston offers superior strength and precise thermal expansion control through its elliptical design. This design ensures even load distribution, reduces pressure points, and enhances durability under high-performance conditions. The kit promotes effective heat transfer from the combustion chamber to the cylinder wall for consistent engine performance. Features include forged piston construction for high durability and strength, an elliptical profile that maintains a uniform bearing surface under heat, reduces localised pressure and prevents piston collapse, efficient combustion heat transfer to cylinder walls, and German precision engineering. Specifications include an actual diameter of 69.94mm, compression height of 36.00mm, stroke of 68.00mm, displacement of 246 cm³, piston clearance of 0.06mm, and a 2-stroke compression ratio. Cross-reference OEM part numbers include Piston Kit Part No: 8023D200, Lock: CW18, Pin: WP033, Ring Set: RSB7000 x2, and Rod: P2029.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"70.00mm"},{"label":"Variant Id","value":"257461"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock56407_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock56407_1.jpg"],"description":"This Wossner forged piston kit features a 70.00mm bore size (+2.00mm oversize). Manufactured in Germany, the piston offers superior strength and precise thermal expansion control through its elliptical design. This design ensures even load distribution, reduces pressure points, and enhances durability under high-performance conditions. The kit promotes effective heat transfer from the combustion chamber to the cylinder wall for consistent engine performance. Features include forged piston construction for high durability and strength, an elliptical profile that maintains a uniform bearing surface under heat, reduces localised pressure and prevents piston collapse, efficient combustion heat transfer to cylinder walls, and German precision engineering. Specifications include an actual diameter of 69.94mm, compression height of 36.00mm, stroke of 68.00mm, displacement of 246 cm³, piston clearance of 0.06mm, and a 2-stroke compression ratio. Cross-reference OEM part numbers include Piston Kit Part No: 8023D200, Lock: CW18, Pin: WP033, Ring Set: RSB7000 x2, and Rod: P2029.","descriptionMarkdown":"### Wossner Forged Piston Kit for Yamaha YZ250/WR250\n\nUpgrade your Yamaha YZ250 or WR250's performance with this Wossner forged piston kit. Engineered in Germany, this high-quality piston is designed for durability and optimized engine performance.\n\n**Key Features:**\n\n\t\n- Forged piston construction for exceptional strength and longevity.\n\t\n- Elliptical piston profile ensures an even bearing surface under varying temperatures, reducing localized pressure and preventing piston collapse.\n\t\n- Promotes efficient heat transfer from the combustion chamber to the cylinder walls for consistent power output.\n\t\n- Precision German engineering guarantees a superior fit and reliable operation.\n\n**Specifications:**\n\n\t\n- Bore Size: 70.00mm (+2.00mm oversize)\n\t\n- Actual Piston Diameter: 69.94mm\n\t\n- Compression Height: 36.00mm\n\t\n- Stroke: 68.00mm\n\t\n- Displacement: 246 cm&sup3;\n\t\n- Recommended Piston Clearance: 0.06mm\n\t\n- Compression Ratio: Suitable for 2-stroke applications (Wossner and OEM specifications)\n\n**Kit Components:**\n\n\t\n- Piston Kit Part Number: 8023D200\n\t\n- Lock Ring: CW18\n\t\n- Piston Pin: WP033\n\t\n- Ring Set: RSB7000 (x2)\n\t\n- Con Rod: P2029","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-92-98-yz250-7000-wossner-8023d200-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/96f6bb085c9d:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/96f6bb085c9d: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."]}}