{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"a14795de2ae6","name":"PISTON KIT SET/4 YZF R6 01-05, WOSSNER K8831D100-4 YAMAHA","sku":"56-W9904.100.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":793.43,"formatted":"£793.43"},"summary":"Wossner forged piston kit set of 4 with +1mm oversize, bore 66.50mm and bore 66.44mm. This piston kit is designed for superior strength and engineered to provide the best possible path for combustion chamber heat transfer to cylinder walls. The elliptical design provides a more uniform bearing surface under piston heat expansion, eliminating localized pressure and distributing thrust loads more evenly, thereby preventing piston collapse. Made in Germany. Part number 56-W9904.100.WO. Includes piston pin WP036, replacement ring set 665XKS, and clip CW16. Displacement 600cc. Compression height 21.20mm. Compression ratio OEM 12.40:1. Dome volume -0.10cm3. Theoretical weight 1070g.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"Variant Id","value":"259124"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock58070_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock58070_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock58070_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock58070_3.jpg"],"description":"Wossner forged piston kit set of 4 with +1mm oversize, bore 66.50mm and bore 66.44mm. This piston kit is designed for superior strength and engineered to provide the best possible path for combustion chamber heat transfer to cylinder walls. The elliptical design provides a more uniform bearing surface under piston heat expansion, eliminating localized pressure and distributing thrust loads more evenly, thereby preventing piston collapse. Made in Germany. Part number 56-W9904.100.WO. Includes piston pin WP036, replacement ring set 665XKS, and clip CW16. Displacement 600cc. Compression height 21.20mm. Compression ratio OEM 12.40:1. Dome volume -0.10cm3. Theoretical weight 1070g.","descriptionMarkdown":"### Wossner Piston Kit - Set of 4\n\nEnhance your motorcycle's performance with this Wossner Piston Kit, designed for superior strength and combustion efficiency. This kit includes four pistons, each precisely engineered to optimize engine power and reliability.\n\n#### Key Features:\n\n \n- Set includes four Wossner forged pistons.\n \n- Piston Bore: 66.50mm\n \n- Oversize: +1.00mm\n \n- Engineered for optimal combustion chamber heat transfer.\n \n- Elliptically designed for uniform bearing surface under heat expansion.\n \n- Distributes thrust loads evenly to prevent piston collapse.\n \n- Manufactured in Germany to high quality standards.\n \n- Compression Height: 21.20mm\n \n- Dome Volume: -0.10 cm3\n \n- Wossner Compression Ratio: OEM\n \n- OEM Compression Ratio: 12.40:1\n \n- Theoretical Weight: 1070g\n\nThis Wossner piston kit is a premium upgrade for riders seeking peak engine performance and durability.","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-set4-yzf-r6-01-05-wossner-k8831d100-4-yamaha","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/a14795de2ae6:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/a14795de2ae6:1"}},"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."]}}