{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"408d0026e0df","name":"PISTON KIT 1989 YZ125 56.00, WOSSNER 8131DA YAMAHA MX","sku":"56-W582+00A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":115.06,"formatted":"£115.06"},"summary":"Wossner forged piston kit 56.00mm bore. Standard bore size 56.00mm actual 55.94mm. Designed for 2-stroke engines with exceptional strength and thermal efficiency through forged aluminium construction. The piston's elliptical shape ensures uniform thrust load distribution during thermal expansion, reducing localised pressure and the risk of piston collapse. Manufactured in Germany. Features: Forged piston construction for superior strength and reliability. Engineered to optimise heat transfer. Elliptical profile maintains a uniform bearing surface under thermal expansion. Developed for 2-stroke engines. Made in Germany. Specifications: Bore Size 56.00mm Standard. Actual Bore 55.94mm. Compression Height 28.00mm. Clearance 0.06mm. Stroke 50.00mm. Displacement 123 cm³. Wossner Compression Ratio 2-stroke. OEM Compression Ratio 2-stroke. Cross-Reference OEM Part Numbers: Wossner Piston 8131DA. Ring Set RSB5600. Lock CW16. Pin WP036. Rod P2047. Internal Reference 56-W582+00A.WO. Weight 202g. Manufacturer: Wossner.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"56.00mm"},{"label":"Variant Id","value":"256994"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55940_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55940_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55940_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55940_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55940_4.jpg"],"description":"Wossner forged piston kit 56.00mm bore. Standard bore size 56.00mm actual 55.94mm. Designed for 2-stroke engines with exceptional strength and thermal efficiency through forged aluminium construction. The piston's elliptical shape ensures uniform thrust load distribution during thermal expansion, reducing localised pressure and the risk of piston collapse. Manufactured in Germany. Features: Forged piston construction for superior strength and reliability. Engineered to optimise heat transfer. Elliptical profile maintains a uniform bearing surface under thermal expansion. Developed for 2-stroke engines. Made in Germany. Specifications: Bore Size 56.00mm Standard. Actual Bore 55.94mm. Compression Height 28.00mm. Clearance 0.06mm. Stroke 50.00mm. Displacement 123 cm³. Wossner Compression Ratio 2-stroke. OEM Compression Ratio 2-stroke. Cross-Reference OEM Part Numbers: Wossner Piston 8131DA. Ring Set RSB5600. Lock CW16. Pin WP036. Rod P2047. Internal Reference 56-W582+00A.WO. Weight 202g. Manufacturer: Wossner.","descriptionMarkdown":"### Wossner Forged Piston Kit - 56.00mm Bore\n\nThis Wossner forged piston kit is engineered for high-performance 2-stroke engines. Constructed from forged aluminum, this piston offers exceptional strength and superior thermal efficiency. Its carefully designed elliptical profile ensures uniform thrust load distribution, even under thermal expansion, which helps to prevent localized pressure buildup and potential piston collapse.\n\n**Key Features:**\n\n \n- Forged piston construction for enhanced durability and reliability.\n \n- Optimized design for efficient heat transfer from the combustion chamber.\n \n- Elliptical piston shape maintains a consistent bearing surface during operation.\n \n- Specifically developed for 2-stroke engine applications.\n \n- Manufactured to exacting standards in Germany.\n\n**Specifications:**\n\n \n- Bore Size: 56.00mm (Standard)\n \n- Actual Bore Diameter: 55.94mm\n \n- Compression Height: 28.00mm\n \n- Piston Clearance: 0.06mm\n \n- Stroke: 50.00mm\n \n- Displacement: 123 cm&sup3;","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-1989-yz125-5600-wossner-8131da-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/408d0026e0df:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/408d0026e0df: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."]}}