{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"936c0cdcaf51","name":"PISTON KIT 86-88 YZ125 56.50, WOSSNER 8118D050 YAMAHA MX","sku":"56-W559+050.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":122.21,"formatted":"£122.21"},"summary":"Wossner 56.50mm (+0.50 oversize) forged piston kit for Yamaha YZ125 models. This piston features a forged construction and elliptical design, built to withstand thermal and mechanical stress, ensuring efficient combustion heat transfer and even thrust load distribution. Manufactured in Germany, it is suited for two-stroke engine performance and reliability. Specifications include a bore of 56.50mm, actual diameter of 56.44mm, displacement of 123 cm³, stroke of 50.00mm, clearance of 0.06mm, compression height of 30.00mm, and a 2-stroke compression ratio. This kit includes lock CW16, pin WP036, and ring set RSB5650.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"56.5mm"},{"label":"Variant Id","value":"256819"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55765_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55765_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55765_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55765_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55765_4.jpg"],"description":"Wossner 56.50mm (+0.50 oversize) forged piston kit for Yamaha YZ125 models. This piston features a forged construction and elliptical design, built to withstand thermal and mechanical stress, ensuring efficient combustion heat transfer and even thrust load distribution. Manufactured in Germany, it is suited for two-stroke engine performance and reliability. Specifications include a bore of 56.50mm, actual diameter of 56.44mm, displacement of 123 cm³, stroke of 50.00mm, clearance of 0.06mm, compression height of 30.00mm, and a 2-stroke compression ratio. This kit includes lock CW16, pin WP036, and ring set RSB5650.","descriptionMarkdown":"### Wossner Forged Piston Kit for Yamaha YZ125\n\nEnhance the performance and reliability of your Yamaha YZ125 with this Wossner forged piston kit. This high-quality piston is engineered for demanding off-road conditions, providing superior strength and durability.\n\n### Key Features\n\n\t\n- Forged Construction: Offers increased strength and longevity compared to cast pistons, handling higher stresses effectively.\n\t\n- Elliptical Design: Promotes uniform bearing surface under heat expansion, reducing wear and ensuring consistent performance.\n\t\n- Optimised Heat Transfer: Designed for efficient combustion heat transfer to the cylinder walls, aiding in thermal management.\n\t\n- Even Thrust Load Distribution: Minimises localised pressure points, reducing the risk of piston collapse and extending engine life.\n\t\n- German Engineering: Manufactured in Germany to exacting standards for premium quality and performance.\n\t\n- Two-Stroke Specific: Tailored for the unique demands of two-stroke engines.\n\n### Specifications\n\n\t\n- Bore Size: 56.50mm\n\t\n- Actual Diameter: 56.44mm\n\t\n- Displacement: 123 cm&sup3;\n\t\n- Stroke: 50.00mm\n\t\n- Clearance: 0.06mm\n\t\n- Compression Height: 30.00mm","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-86-88-yz125-5650-wossner-8118d050-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/936c0cdcaf51:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/936c0cdcaf51:1"}},"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."]}}