{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"d8345f913efa","name":"PISTON KIT 83-87 YZ250 69.25, WOSSNER 8133D125 YAMAHA MX","sku":"56-W560+125.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 with a 69.25 mm bore, precision-engineered for durability and efficient heat transfer. Features forged piston construction for increased strength, superior heat transfer design for improved thermal performance, and an elliptical piston profile to reduce localised pressure and distribute thrust loads. Engineered for 2-stroke engine applications. Made in Germany. Specifications include bore 69.25 mm, actual bore diameter 69.19 mm, compression height 36.00 mm, display volume 246 cm&sup3;, stroke 68.00 mm, clearance 0.06 mm, and compression ratio 2-stroke (Wossner and OEM). Includes piston kit part number 8133D125, lock P/N CW18, pin P/N WP033, ring set P/N RSB6925 (x2), rod P/N P2048, and alternate part number 56-W560+100.WO.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"69.25mm"},{"label":"Variant Id","value":"256837"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55783_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55783_1.jpg"],"description":"Wossner forged piston kit with a 69.25 mm bore, precision-engineered for durability and efficient heat transfer. Features forged piston construction for increased strength, superior heat transfer design for improved thermal performance, and an elliptical piston profile to reduce localised pressure and distribute thrust loads. Engineered for 2-stroke engine applications. Made in Germany. Specifications include bore 69.25 mm, actual bore diameter 69.19 mm, compression height 36.00 mm, display volume 246 cm&sup3;, stroke 68.00 mm, clearance 0.06 mm, and compression ratio 2-stroke (Wossner and OEM). Includes piston kit part number 8133D125, lock P/N CW18, pin P/N WP033, ring set P/N RSB6925 (x2), rod P/N P2048, and alternate part number 56-W560+100.WO.","descriptionMarkdown":"### Wossner Forged Piston Kit for Yamaha YZ250 (1983-1987)\n\nEnhance the performance and durability of your Yamaha YZ250 with this premium forged piston kit from Wossner. Precision-engineered in Germany, this kit is designed to meet the demands of high-performance 2-stroke engines.\n\n**Key Features:**\n\n\t\n- Forged piston construction for superior strength and longevity.\n\t\n- Advanced heat transfer design for optimal thermal management and improved engine efficiency.\n\t\n- Elliptical piston profile engineered to minimize localized pressure and effectively distribute thrust loads, preventing piston collapse.\n\t\n- Specifically designed for 2-stroke engine applications.\n\t\n- Manufactured to exacting standards in Germany.\n\n**Specifications:**\n\n\t\n- Bore Size: 69.25 mm\n\t\n- Actual Bore Diameter: 69.19 mm\n\t\n- Compression Height: 36.00 mm\n\t\n- Display Volume: 246 cm&sup3;\n\t\n- Stroke: 68.00 mm\n\t\n- Piston Clearance: 0.06 mm\n\t\n- Compression Ratio: Compatible with 2-stroke (Wossner and OEM).\n\n**Included Components:**\n\n\t\n- Piston Kit Part Number: 8133D125\n\t\n- Lock Ring Part Number: CW18\n\t\n- Piston Pin Part Number: WP033\n\t\n- Ring Set Part Number: RSB6925 (qty 2)\n\t\n- Rod Part Number: P2048 (for 1983-1989 models)","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-yz250-6925-wossner-8133d125-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/d8345f913efa:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/d8345f913efa: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."]}}