{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"c85e868e9e71","name":"PISTON KIT GM SPEEDWAY 90.00, WOSSNER 8811DC C","sku":"56-W9841.C","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":300.97,"formatted":"£300.97"},"summary":"Wossner forged piston kit with a 90.02mm bore (+0.02mm oversize) for Speedway applications including GM Speedway 499cc engines. Manufactured in Germany, it features a high-strength forged design and optimized thermal characteristics. The elliptical piston profile ensures even expansion and pressure distribution, reducing stress and preventing collapse. Features forged construction for superior strength and thermal stability, engineered for efficient heat transfer, and an elliptical profile for uniform bearing surface during heat expansion. It evenly distributes thrust loads to prevent localized pressure. Bore: 90.02mm (+0.02mm Oversize). Actual bore: 89.94mm. Display volume: 499 cm³. Stroke: 78.50mm. Clearance: 0.08mm. Dome volume: +5.60 cm³. Compression height: 22.00mm. Cross-reference OEM Part Numbers: 56-W9841.C, 8811DC. Pin Part Number: WP174. Ring Set Part Number: 900ADS-2.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"90.00mm"},{"label":"Variant Id","value":"258886"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9841_2EC/8b92f6ac9c221ae5.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9841_2EC/8b92f6ac9c221ae5.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9841_2EC/9a7ad6b534255190.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9841_2EC/679bca288c1dea97.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9841_2EC/163c18c9d237583b.jpg"],"description":"Wossner forged piston kit with a 90.02mm bore (+0.02mm oversize) for Speedway applications including GM Speedway 499cc engines. Manufactured in Germany, it features a high-strength forged design and optimized thermal characteristics. The elliptical piston profile ensures even expansion and pressure distribution, reducing stress and preventing collapse. Features forged construction for superior strength and thermal stability, engineered for efficient heat transfer, and an elliptical profile for uniform bearing surface during heat expansion. It evenly distributes thrust loads to prevent localized pressure. Bore: 90.02mm (+0.02mm Oversize). Actual bore: 89.94mm. Display volume: 499 cm³. Stroke: 78.50mm. Clearance: 0.08mm. Dome volume: +5.60 cm³. Compression height: 22.00mm. Cross-reference OEM Part Numbers: 56-W9841.C, 8811DC. Pin Part Number: WP174. Ring Set Part Number: 900ADS-2.","descriptionMarkdown":"### Wossner Forged Piston Kit Speedway 90.02mm Bore\n\nEnhance the performance and durability of your Speedway engine with this high-quality forged piston kit from Wossner. Manufactured in Germany, this piston kit is engineered for superior strength, optimized thermal characteristics, and reliable operation under demanding conditions.\n\n#### Key Features:\n\n \n- Forged Construction: Provides exceptional strength and thermal stability for long-lasting performance.\n \n- Optimized Heat Transfer: Designed for efficient heat dissipation from the combustion chamber to the cylinder walls, reducing operating temperatures.\n \n- Elliptical Piston Profile: Ensures a uniform bearing surface as the piston expands with heat, preventing deformation and maintaining optimal clearance.\n \n- Even Thrust Load Distribution: The design helps to distribute pressure evenly, minimizing localized stress and preventing piston collapse.\n \n- Precision Manufacturing: Made in Germany to exacting standards for quality and reliability.\n\n#### Specifications:\n\n \n- Bore Size: 90.02mm (+0.02mm Oversize)\n \n- Actual Bore: 89.94mm\n \n- Display Volume: 499 cm&sup3;\n \n- Stroke: 78.50mm\n \n- Clearance: 0.08mm\n \n- Dome Volume: +5.60 cm&sup3;\n \n- Compression Height: 22.00mm","weightGrams":null,"fitments":[{"make":"GM","model":"SPEEDWAY 499","cc":null,"notes":null,"years":"2000–2017"},{"make":"GM","model":"SPEEDWAY 500","cc":null,"notes":null,"years":"1990–2015"}],"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-gm-speedway-9000-wossner-8811dc-c","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/c85e868e9e71:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/c85e868e9e71:1"}},"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."]}}