{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"7c1351518e06","name":"PISTON KIT 88-91 YZ250 69.50, WOSSNER 8134D150 YAMAHA MX","sku":"56-W605+150.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 69.50 mm bore and 69.44 mm piston diameter (+1.50 mm oversize). This piston features an elliptical design for uniform bearing contact, improving reliability under thermal expansion and high load. Forged in Germany, it offers exceptional strength and thermal efficiency. Specifications include an engine displacement of 246 cm³, a stroke of 68.00 mm, 0.06 mm clearance, 36.00 mm compression height, and a 2-stroke compression ratio. Cross-reference part numbers: Piston Kit 8134D150, Lock CW18, Pin WP033, Ring Set RSB6950 x 2. Weight: 346g.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"69.50mm"},{"label":"Variant Id","value":"257080"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock56026_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock56026_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56026_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56026_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56026_4.jpg"],"description":"Wossner forged piston kit with a 69.50 mm bore and 69.44 mm piston diameter (+1.50 mm oversize). This piston features an elliptical design for uniform bearing contact, improving reliability under thermal expansion and high load. Forged in Germany, it offers exceptional strength and thermal efficiency. Specifications include an engine displacement of 246 cm³, a stroke of 68.00 mm, 0.06 mm clearance, 36.00 mm compression height, and a 2-stroke compression ratio. Cross-reference part numbers: Piston Kit 8134D150, Lock CW18, Pin WP033, Ring Set RSB6950 x 2. Weight: 346g.","descriptionMarkdown":"### Wossner Forged Piston Kit - Yamaha YZ250 / WR250 (Oversize)\n\n This Wossner forged piston kit is designed for Yamaha YZ250 and WR250 motorcycles.\n It features a 69.50 mm bore size with a piston diameter of 69.44 mm, representing a +1.50 mm oversize.\n This specification makes it ideal for engines that require increased cylinder clearance or have undergone cylinder refinishing.\n Forged in Germany, this piston is engineered for exceptional strength and efficient thermal performance.\n The elliptical design promotes uniform bearing contact and reduces wear, enhancing reliability under high thermal loads and stress.\n\n### Key Features\n\n \n- Forged piston construction for superior strength and durability.\n \n- Optimized design for effective heat transfer.\n \n- Elliptical piston shape ensures even pressure distribution and minimizes wear.\n \n- Manufactured in Germany with high precision standards.\n\n### Specifications\n\n \n- Bore Size: 69.50 mm\n \n- Piston Diameter: 69.44 mm\n \n- Engine Displacement: 246 cc\n \n- Stroke: 68.00 mm\n \n- Clearance: 0.06 mm\n \n- Compression Height: 36.00 mm\n \n- Compression Ratio: 2-stroke (compatible with Wossner and OEM specifications)\n\n### Wossner Part Cross-References\n\n \n- Piston Kit: 8134D150\n \n- Lock Ring: CW18\n \n- Piston Pin: WP033\n \n- Ring Set: RSB6950 (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-88-91-yz250-6950-wossner-8134d150-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/7c1351518e06:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/7c1351518e06:1"}},"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."]}}