{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"8582dde23b54","name":"PISTON KIT 1983 &85 YZ125 57.5, WOSSNER 8119D150 YAMAHA","sku":"56-W503+150.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":125.68,"formatted":"£125.68"},"summary":"Wossner forged piston kit with a 57.50mm bore (57.44mm) for Yamaha YZ125 1983 and 1985 models. Manufactured in Germany, this piston offers enhanced strength, optimized heat transfer, and uniform bearing surface under thermal expansion for reliable performance. Specifications include a display volume of 83 cm&sup3;, 84.00 mm stroke, 0.06 mm clearance, 30.80 mm compression height, and a 2-stroke compression ratio. Includes piston, lock CW16, pin WP036, and ring set RSB5750. Piston part number: 8119D150.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"57.5mm"},{"label":"Variant Id","value":"256563"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W503_2B150_2EWO/94a66b588f7b6532.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W503_2B150_2EWO/94a66b588f7b6532.jpg"],"description":"Wossner forged piston kit with a 57.50mm bore (57.44mm) for Yamaha YZ125 1983 and 1985 models. Manufactured in Germany, this piston offers enhanced strength, optimized heat transfer, and uniform bearing surface under thermal expansion for reliable performance. Specifications include a display volume of 83 cm&sup3;, 84.00 mm stroke, 0.06 mm clearance, 30.80 mm compression height, and a 2-stroke compression ratio. Includes piston, lock CW16, pin WP036, and ring set RSB5750. Piston part number: 8119D150.","descriptionMarkdown":"### Wossner Forged Piston Kit for Yamaha YZ125\n\nThis high-performance forged piston kit from Wossner is engineered to provide superior strength and durability for your Yamaha YZ125. Manufactured in Germany, this piston is designed to optimize heat transfer, ensuring effective cooling from the combustion chamber to the cylinder walls. Its elliptical profile guarantees a uniform bearing surface, even under thermal expansion, preventing piston collapse during demanding performance conditions.\n\n**Key Features:**\n\n\t\n- Forged piston construction for enhanced strength and longevity.\n\t\n- Optimized design for efficient heat transfer and temperature regulation.\n\t\n- Elliptical profile ensures consistent bearing surface for reliable performance.\n\t\n- Precision manufactured in Germany for exceptional quality.\n\n**Specifications:**\n\n\t\n- Bore Size: 57.50mm (actual 57.44mm)\n\t\n- Display Volume: 83 cm&sup3;\n\t\n- Stroke: 84.00 mm\n\t\n- Clearance: 0.06 mm\n\t\n- Compression Height: 30.80 mm\n\t\n- Compression Ratio: 2-stroke (compatible with Wossner and OEM specifications)\n\n**Included Components:**\n\n\t\n- Piston (Part Number: 8119D150)\n\t\n- Lock (Part Number: CW16)\n\t\n- Pin (Part Number: WP036)\n\t\n- Ring Set (Part Number: RSB5750)","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-1983-85-yz125-575-wossner-8119d150-yamaha","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/8582dde23b54:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/8582dde23b54:1"}},"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."]}}