{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"f0f1c0c54476","name":"PISTON KIT 82mm OVERSIZE 4.00mm SET/4 SUZUKI GSXR1100 WOSSNER K8530D400-4","sku":"56-W9890.400.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":793.43,"formatted":"£793.43"},"summary":"Forged piston kit set of four with an 82.00 mm bore +4.00 mm oversize and measured piston diameter of 81.94 mm. Engineered for strength, efficient heat transfer and stable operation under thermal load, the elliptical skirt profile promotes a uniform bearing surface and even thrust load distribution. Manufactured in Germany. Features include forged pistons engineered for strength and durability, optimised heat transfer from the combustion chamber to cylinder walls, elliptical design providing a uniform bearing surface under heat expansion, and distribution of thrust loads evenly to help prevent piston collapse. Specifications include bore size: 82.00 mm, measured piston diameter: 81.94 mm, oversize: +4.00 mm, compression ratio (Wössner): 12.5:1, OEM compression ratio (reference): 10.0:1, compression height: 25.30 mm, dome volume: +3.80 cm³, recommended clearance: 0.06 mm, stroke (engine reference): 58.00 mm, and displacement (cm³): 1165 / 1194 / 1224 / 1254 / 1315. Cross-reference OEM part numbers include Wössner K8530D400-4, clip CW20, piston pin WP029, and ring set 820XSY.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"82.00mm"},{"label":"Variant Id","value":"259072"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9890_2E400_2EWO/009ce523d967a5e2.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9890_2E400_2EWO/009ce523d967a5e2.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9890_2E400_2EWO/f46704fe5eb2c9c8.jpg"],"description":"Forged piston kit set of four with an 82.00 mm bore +4.00 mm oversize and measured piston diameter of 81.94 mm. Engineered for strength, efficient heat transfer and stable operation under thermal load, the elliptical skirt profile promotes a uniform bearing surface and even thrust load distribution. Manufactured in Germany. Features include forged pistons engineered for strength and durability, optimised heat transfer from the combustion chamber to cylinder walls, elliptical design providing a uniform bearing surface under heat expansion, and distribution of thrust loads evenly to help prevent piston collapse. Specifications include bore size: 82.00 mm, measured piston diameter: 81.94 mm, oversize: +4.00 mm, compression ratio (Wössner): 12.5:1, OEM compression ratio (reference): 10.0:1, compression height: 25.30 mm, dome volume: +3.80 cm³, recommended clearance: 0.06 mm, stroke (engine reference): 58.00 mm, and displacement (cm³): 1165 / 1194 / 1224 / 1254 / 1315. Cross-reference OEM part numbers include Wössner K8530D400-4, clip CW20, piston pin WP029, and ring set 820XSY.","descriptionMarkdown":"### Wossner 82mm Oversize Piston Kit for Suzuki Engines\n\nThis Wossner forged piston kit is designed for enhanced performance and durability. Engineered with precision in Germany, these pistons feature an 82.00 mm bore size and are 4.00 mm oversize, with a measured piston diameter of 81.94 mm.\n\nThe advanced design incorporates features for optimal engine operation:\n\n\t\n- Forged Pistons: Engineered for superior strength and long-lasting durability.\n\t\n- Optimised Heat Transfer: Efficiently transfers heat from the combustion chamber to the cylinder walls, aiding in stable operation.\n\t\n- Elliptical Skirt Profile: Promotes a uniform bearing surface and even thrust load distribution, even under thermal expansion.\n\t\n- Stable Operation: Designed to distribute thrust loads evenly, helping to prevent piston collapse under stress.\n\t\n- German Engineering: Manufactured to high standards in Germany.\n\n**Specifications:**\n\n\t\n- Bore Size: 82.00 mm\n\t\n- Measured Piston Diameter: 81.94 mm\n\t\n- Oversize: +4.00 mm\n\t\n- Compression Ratio (Wossner): 12.5:1\n\t\n- OEM Compression Ratio (Reference): 10.0:1\n\t\n- Compression Height: 25.30 mm\n\t\n- Dome Volume: +3.80 cm&sup3;\n\t\n- Recommended Clearance: 0.06 mm\n\t\n- Stroke (Engine Reference): 58.00 mm\n\t\n- Displacement (cm&sup3;): Varies from 1165 to 1315 cm&sup3; depending on application.\n\n**Included Components:**\n\n\t\n- Set of Four Forged Pistons\n\t\n- Piston Pins (WP029)\n\t\n- Ring Sets (820XSY)\n\t\n- Clips (CW20)","weightGrams":null,"fitments":[{"make":"SUZUKI","model":"GSX R 1100","cc":null,"notes":null,"years":"1989–1992"}],"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-82mm-oversize-400mm-set4-suzuki-gsxr1100-wossner-k8530d400-4","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/f0f1c0c54476:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/f0f1c0c54476:1"}},"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."]}}