{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"cc729ddec50e","name":"PISTON KIT 90-01 ZX11 KAW, WOSSNER K8801D200-4 ROAD, KAWASAKI","sku":"56-W9814.78.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":793.43,"formatted":"£793.43"},"summary":"Wossner piston kit with a 78mm bore is an oversized (+2.00mm) replacement. Forged in Germany, it is engineered for strength and optimal thermal performance. The elliptical design allows for uniform expansion, even pressure distribution, and reduced risk of piston collapse during operation under high stress. Features include forged construction for superior strength and reliability, designed for effective heat transfer from the combustion chamber to cylinder walls, and an elliptical profile ensuring a consistent bearing surface under heat expansion. It offers even distribution of thrust loads to prevent localized stress and is manufactured in Germany. Specifications include a bore of 78mm (+2.00mm Oversize), actual bore of 77.95mm, display volume of 1080 / 1109 cm³, stroke of 58.00mm, clearance of 0.06mm, Wossner compression ratio of OEM, OEM compression ratio of 11.00:1, dome volume of -3.70 cm³, compression height of 25.00mm, theoretical weight of 209.00g, lock part number CW18, pin part number WP031, and ring set part number 780XDS. Cross-reference OEM part numbers include 56-W9814.78.WO and K8801D200-4.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"Variant Id","value":"258800"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock57746_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock57746_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock57746_2.jpg"],"description":"Wossner piston kit with a 78mm bore is an oversized (+2.00mm) replacement. Forged in Germany, it is engineered for strength and optimal thermal performance. The elliptical design allows for uniform expansion, even pressure distribution, and reduced risk of piston collapse during operation under high stress. Features include forged construction for superior strength and reliability, designed for effective heat transfer from the combustion chamber to cylinder walls, and an elliptical profile ensuring a consistent bearing surface under heat expansion. It offers even distribution of thrust loads to prevent localized stress and is manufactured in Germany. Specifications include a bore of 78mm (+2.00mm Oversize), actual bore of 77.95mm, display volume of 1080 / 1109 cm³, stroke of 58.00mm, clearance of 0.06mm, Wossner compression ratio of OEM, OEM compression ratio of 11.00:1, dome volume of -3.70 cm³, compression height of 25.00mm, theoretical weight of 209.00g, lock part number CW18, pin part number WP031, and ring set part number 780XDS. Cross-reference OEM part numbers include 56-W9814.78.WO and K8801D200-4.","descriptionMarkdown":"### Wossner 78mm Oversize Piston Kit for Kawasaki ZX11\n\nThis Wossner piston kit is engineered for enhanced performance and durability on Kawasaki ZX11 models. Featuring a 78mm bore, this is an oversized replacement designed to optimize engine power and efficiency.\n\n#### Key Features:\n\n\t\n- Forged Construction: Provides superior strength and reliability for demanding conditions.\n\t\n- Optimized Thermal Performance: Designed for effective heat transfer from the combustion chamber to the cylinder walls.\n\t\n- Elliptical Piston Design: Ensures uniform expansion and consistent bearing surface even under high operating temperatures, reducing the risk of piston collapse.\n\t\n- Even Pressure Distribution: Thrust loads are distributed evenly, preventing localized stress and wear.\n\t\n- German Engineering: Manufactured in Germany to exacting standards for quality and precision.\n\n#### Specifications:\n\n\t\n- Bore Size: 78mm (+2.00mm Oversize)\n\t\n- Actual Bore: 77.95mm\n\t\n- Stroke: 58.00mm\n\t\n- Piston Clearance: 0.06mm\n\t\n- Wossner Compression Ratio: OEM\n\t\n- OEM Compression Ratio: 11.00:1\n\t\n- Dome Volume: -3.70 cm&sup3;\n\t\n- Compression Height: 25.00mm\n\t\n- Theoretical Weight: 209.00g\n\t\n- Lock Part Number: CW18\n\t\n- Pin Part Number: WP031\n\t\n- Ring Set Part Number: 780XDS","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-90-01-zx11-kaw-wossner-k8801d200-4-road-kawasaki","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/cc729ddec50e:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/cc729ddec50e: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."]}}