{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"9e8db8a819e9","name":"PISTON KIT 1983 &85 YZ125 58mm, WOSSNER 8119D200 YAMAHA","sku":"56-W503+200.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":125.68,"formatted":"£125.68"},"summary":"This Wossner forged piston kit has a 58mm bore size (57.94mm) and is designed for Yamaha YZ125 models. Manufactured in Germany, this piston offers improved strength, durability, and efficient heat transfer. Its elliptical design promotes even pressure distribution under thermal expansion, reducing localized stress and helping prevent piston collapse. Specifications include a display volume of 83 cm³, stroke of 84.00 mm, clearance of 0.06 mm, compression height of 30.80 mm, and a 2-stroke compression ratio. Cross-reference OEM part numbers include Piston: 8119D200, Lock: CW16, Pin: WP036, and Ring Set: RSB5800.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"58mm"},{"label":"Variant Id","value":"256565"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55511_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55511_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55511_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55511_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55511_4.jpg"],"description":"This Wossner forged piston kit has a 58mm bore size (57.94mm) and is designed for Yamaha YZ125 models. Manufactured in Germany, this piston offers improved strength, durability, and efficient heat transfer. Its elliptical design promotes even pressure distribution under thermal expansion, reducing localized stress and helping prevent piston collapse. Specifications include a display volume of 83 cm³, stroke of 84.00 mm, clearance of 0.06 mm, compression height of 30.80 mm, and a 2-stroke compression ratio. Cross-reference OEM part numbers include Piston: 8119D200, Lock: CW16, Pin: WP036, and Ring Set: RSB5800.","descriptionMarkdown":"### Wossner Forged Piston Kit 58mm for Yamaha YZ125\n\nThis Wossner forged piston kit features a 58mm bore (57.94mm) and is designed for Yamaha YZ125 models. Made in Germany, this piston offers enhanced durability and efficient heat transfer. Its elliptical design promotes even pressure distribution under thermal expansion, reducing localized stress and helping prevent piston collapse.\n\n**Key Features:**\n\n \n- Forged piston construction for superior strength and longevity.\n \n- Optimized design for efficient heat transfer to cylinder walls.\n \n- Elliptical shape ensures uniform bearing surface during thermal expansion.\n \n- Precision manufactured in Germany.\n\n**Specifications:**\n\n \n- Bore Size: 58mm (57.94mm)\n \n- Display Volume: 83 cm&sup3;\n \n- Stroke: 84.00 mm\n \n- Clearance: 0.06 mm\n \n- Compression Height: 30.80 mm\n \n- Compression Ratio: 2-stroke (Wossner and OEM)\n\n**Included Components:**\n\n \n- Piston: 8119D200\n \n- Lock: CW16\n \n- Pin: WP036\n \n- Ring Set: RSB5800","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-yz125-58mm-wossner-8119d200-yamaha","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/9e8db8a819e9:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/9e8db8a819e9:1"}},"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. 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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."]}}