{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"c9227c71e91b","name":"PISTON KIT 01-04 YZF250 83.00, 8572D600 WOSSNER BIG BORE","sku":"56-W022+600.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":150.76,"formatted":"£150.76"},"summary":"Wossner forged piston kit with a Pro Series two-ring design for enhanced sealing and longevity. Engineered for superior strength and performance, it optimizes heat transfer from the combustion chamber to cylinder walls. The elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany. Bore: 82.96 mm. Piston Size: 83.00 mm. Displacement: 249 cm³. Stroke: 53.60 mm. Clearance: 0.04 mm. Wossner Compression Ratio: 12.80:1. OEM Compression Ratio: 12.50:1. Dome Volume: -4.80 cm³. Compression Height: 20.50 mm. Lock: CW16. Pin: WP059. Ring Set: 830XSY. Rod: P4006 / P4005.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"Variant Id","value":"254291"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W022_2B600_2EWO/42121986312c0624.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W022_2B600_2EWO/42121986312c0624.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W022_2B600_2EWO/db69ad4bd98bff0c.jpg"],"description":"Wossner forged piston kit with a Pro Series two-ring design for enhanced sealing and longevity. Engineered for superior strength and performance, it optimizes heat transfer from the combustion chamber to cylinder walls. The elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany. Bore: 82.96 mm. Piston Size: 83.00 mm. Displacement: 249 cm³. Stroke: 53.60 mm. Clearance: 0.04 mm. Wossner Compression Ratio: 12.80:1. OEM Compression Ratio: 12.50:1. Dome Volume: -4.80 cm³. Compression Height: 20.50 mm. Lock: CW16. Pin: WP059. Ring Set: 830XSY. Rod: P4006 / P4005.","descriptionMarkdown":"### Wossner Forged Piston Kit Big Bore 83.00mm\n\nUpgrade your engine's performance and durability with the Wossner forged piston kit. This kit features a big bore design for increased displacement and power. Engineered for optimal heat transfer, the piston efficiently dissipates heat from the combustion chamber to the cylinder walls, contributing to improved overall engine performance and longevity. The unique elliptical design ensures a uniform bearing surface, even under extreme heat expansion, effectively reducing localized pressure and distributing thrust loads evenly to prevent piston collapse.\n\n**Key Features:**\n\n\t\n- Forged Construction: Offers superior strength and resilience compared to cast pistons, providing enhanced durability for demanding applications.\n\t\n- Optimized Heat Transfer: Designed to efficiently move heat away from the combustion chamber, promoting cooler operation and improved performance.\n\t\n- Elliptical Design: Prevents localized pressure points and ensures even load distribution, eliminating the risk of piston collapse under high temperatures.\n\t\n- Pro Series Two-Ring Configuration: This design enhances sealing capabilities for improved compression and longevity of the piston rings.\n\n**Specifications:**\n\n\t\n- Bore Size: 82.96 mm\n\t\n- Piston Diameter: 83.00 mm\n\t\n- Displacement: 249 cm&sup3;\n\t\n- Stroke: 53.60 mm\n\t\n- Piston to Cylinder Clearance: 0.04 mm\n\t\n- Wossner Compression Ratio: 12.80:1\n\t\n- OEM Compression Ratio: 12.50:1\n\t\n- Dome Volume: -4.80 cm&sup3;\n\t\n- Compression Height: 20.50 mm","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-01-04-yzf250-8300-8572d600-wossner-big-bore","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/c9227c71e91b:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/c9227c71e91b: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."]}}