{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"3c19482ce72e","name":"PISTON KIT 94-96 YZ125 54.50, WOSSNER 8116D050 YAMAHA MX","sku":"56-W647+050.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":125.4,"formatted":"£125.40"},"summary":"Wossner Piston Kit 8116D050 is a +0.50 oversize forged piston with a 54.50mm bore. Manufactured in Germany, this piston delivers strength, precision, and excellent thermal efficiency. Its elliptical profile allows for even load distribution during expansion, minimising localised pressure and enhancing engine reliability under high-performance conditions. Features include a forged piston for durability, an elliptical design to distribute thrust loads evenly, and optimised engineering for efficient combustion heat transfer. Specifications: Bore 54.50 mm, Actual Piston Diameter 54.44 mm, Stroke 54.50 mm, Displacement 124 cm&sup3;, Clearance 0.06 mm, Compression Height 28.00 mm, Wossner Compression Ratio 2-stroke, OEM Compression Ratio 2-stroke. Cross-Reference OEM Part Numbers include Lock CW16, Pin WP036, Ring Set RSB5450, Rod P2047, and Internal Part No 56-W647+050.WO.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"54.50mm"},{"label":"Variant Id","value":"257317"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock56263_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock56263_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56263_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56263_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56263_4.jpg"],"description":"Wossner Piston Kit 8116D050 is a +0.50 oversize forged piston with a 54.50mm bore. Manufactured in Germany, this piston delivers strength, precision, and excellent thermal efficiency. Its elliptical profile allows for even load distribution during expansion, minimising localised pressure and enhancing engine reliability under high-performance conditions. Features include a forged piston for durability, an elliptical design to distribute thrust loads evenly, and optimised engineering for efficient combustion heat transfer. Specifications: Bore 54.50 mm, Actual Piston Diameter 54.44 mm, Stroke 54.50 mm, Displacement 124 cm&sup3;, Clearance 0.06 mm, Compression Height 28.00 mm, Wossner Compression Ratio 2-stroke, OEM Compression Ratio 2-stroke. Cross-Reference OEM Part Numbers include Lock CW16, Pin WP036, Ring Set RSB5450, Rod P2047, and Internal Part No 56-W647+050.WO.","descriptionMarkdown":"### Wossner Oversize Forged Piston Kit\n\nThis Wossner Piston Kit is a precision-engineered, +0.50 oversize forged piston designed to enhance the performance and reliability of your motorcycle engine. Manufactured in Germany, this piston utilizes advanced forging techniques to ensure superior strength and durability. Its innovative elliptical profile is engineered to distribute thrust loads evenly across the piston surface during thermal expansion, minimizing localized stress and contributing to greater engine longevity, especially under demanding high-performance conditions.\n\n#### Key Features:\n\n\t\n- Forged Construction: Provides exceptional strength and structural integrity for extended durability.\n\t\n- Elliptical Piston Design: Optimizes load distribution during thermal expansion, reducing stress and enhancing reliability.\n\t\n- Efficient Thermal Transfer: Designed for effective combustion heat transfer to the cylinder walls.\n\t\n- Precision Engineering: Manufactured to exacting standards in Germany.\n\n#### Specifications:\n\n\t\n- Bore Size: 54.50 mm\n\t\n- Actual Piston Diameter: 54.44 mm\n\t\n- Stroke: 54.50 mm\n\t\n- Displacement: 124 cm&sup3;\n\t\n- Piston Clearance: 0.06 mm\n\t\n- Compression Height: 28.00 mm\n\t\n- Wossner Compression Ratio: 2-stroke\n\t\n- OEM Compression Ratio: 2-stroke\n\n#### Included Components:\n\n\t\n- Wossner Piston: 8116D050\n\t\n- Lock Ring: CW16\n\t\n- Piston Pin: WP036\n\t\n- Ring Set: RSB5450","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-94-96-yz125-5450-wossner-8116d050-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/3c19482ce72e:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/3c19482ce72e: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."]}}