{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"ed8887fe0489","name":"PISTON KIT 94-96 YZ125 55.00, WOSSNER 8116D100 YAMAHA MX","sku":"56-W647+100.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":125.4,"formatted":"£125.40"},"summary":"Wossner Piston Kit 8116D100 is a +1.00 oversize forged piston with a 55.00mm bore, designed for Yamaha YZ125 models from 1994 to 1996. Made in Germany, this piston offers robust performance and thermal efficiency. Its elliptical profile ensures consistent load distribution during heat expansion, reducing localized pressure zones and increasing reliability in high-stress engine conditions. Features include high-strength forged construction for maximum durability, an elliptical design for even thrust force distribution under thermal load, and optimisation for efficient heat transfer to cylinder walls. Specifications include a bore of 55.00 mm, actual piston diameter of 54.94 mm, stroke of 54.50 mm, displacement of 124 cm&sup3;, clearance of 0.06 mm, and compression height of 28.00 mm. The Wossner compression ratio is 2-stroke, as is the OEM compression ratio. Cross-reference OEM part numbers include Wossner Piston: 8116D100, Lock: CW16, Pin: WP036, Ring Set: RSB5500, Rod: P2047, and Internal Part No: 56-W647+100.WO.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"55.00mm"},{"label":"Variant Id","value":"257318"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W647_2B100_2EWO/2f37ed39dba615c0.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W647_2B100_2EWO/2f37ed39dba615c0.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W647_2B100_2EWO/3c74dc6e56269336.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W647_2B100_2EWO/ccac3123340f1db7.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W647_2B100_2EWO/a84cf982151a4900.jpg"],"description":"Wossner Piston Kit 8116D100 is a +1.00 oversize forged piston with a 55.00mm bore, designed for Yamaha YZ125 models from 1994 to 1996. Made in Germany, this piston offers robust performance and thermal efficiency. Its elliptical profile ensures consistent load distribution during heat expansion, reducing localized pressure zones and increasing reliability in high-stress engine conditions. Features include high-strength forged construction for maximum durability, an elliptical design for even thrust force distribution under thermal load, and optimisation for efficient heat transfer to cylinder walls. Specifications include a bore of 55.00 mm, actual piston diameter of 54.94 mm, stroke of 54.50 mm, displacement of 124 cm&sup3;, clearance of 0.06 mm, and compression height of 28.00 mm. The Wossner compression ratio is 2-stroke, as is the OEM compression ratio. Cross-reference OEM part numbers include Wossner Piston: 8116D100, Lock: CW16, Pin: WP036, Ring Set: RSB5500, Rod: P2047, and Internal Part No: 56-W647+100.WO.","descriptionMarkdown":"### Wossner Oversize Forged Piston Kit\n\nUpgrade your engine's performance with this high-strength Wossner forged piston kit. Engineered for durability and reliability, this oversize piston is designed to deliver optimal performance under demanding conditions. Manufactured in Germany, Wossner pistons feature an advanced elliptical profile that ensures consistent load distribution, even during heat expansion, reducing localized pressure and enhancing engine longevity.\n\n#### Key Features:\n\n- Durable forged construction for maximum strength.\n\n- Elliptical design promotes even thrust force distribution under thermal load.\n\n- Optimized for efficient heat transfer to cylinder walls.\n\n- Precision manufactured in Germany.\n\n- +1.00 mm oversize for enhanced performance.\n\n#### Specifications:\n\n- Bore: 55.00 mm\n\n- Actual Piston Diameter: 54.94 mm\n\n- Stroke: 54.50 mm\n\n- Displacement: 124 cm&sup3;\n\n- Clearance: 0.06 mm\n\n- Compression Height: 28.00 mm\n\n- Engine Type: 2-stroke","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-yz125-5500-wossner-8116d100-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/ed8887fe0489:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/ed8887fe0489:1"}},"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."]}}