{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"1050a6e67f8f","name":"PISTON KIT BETA RR300 13-17, FORGED WOSSNER 8298DC","sku":"56-W9921.00C.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":195.02,"formatted":"£195.02"},"summary":"This Wossner piston kit features a 72.00mm bore with a measured diameter of 71.98mm, providing a +0.02mm oversize fitment. This two-ring forged piston delivers robust performance, excellent heat transfer, and structural integrity under demanding conditions. Features include forged construction for superior strength and durability, optimal heat dissipation from the combustion chamber to cylinder walls, an elliptical profile to maintain a uniform bearing surface during heat expansion, and even thrust load distribution to prevent piston collapse. Manufactured in Germany. Specifications: Bore 72.00mm, Diameter 71.98mm, Ring Type Two Ring, Compression Ratio (Wossner) 2-stroke, Compression Ratio (OEM) 2-stroke. Cross-Reference OEM Part Numbers: Part No. 56-W9921.00B.WO, Wossner Piston 8298DC.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"Variant Id","value":"295969"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock100299_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock100299_1.jpg"],"description":"This Wossner piston kit features a 72.00mm bore with a measured diameter of 71.98mm, providing a +0.02mm oversize fitment. This two-ring forged piston delivers robust performance, excellent heat transfer, and structural integrity under demanding conditions. Features include forged construction for superior strength and durability, optimal heat dissipation from the combustion chamber to cylinder walls, an elliptical profile to maintain a uniform bearing surface during heat expansion, and even thrust load distribution to prevent piston collapse. Manufactured in Germany. Specifications: Bore 72.00mm, Diameter 71.98mm, Ring Type Two Ring, Compression Ratio (Wossner) 2-stroke, Compression Ratio (OEM) 2-stroke. Cross-Reference OEM Part Numbers: Part No. 56-W9921.00B.WO, Wossner Piston 8298DC.","descriptionMarkdown":"### Wossner Forged Piston Kit for Beta RR300 and Xtrainer300\n\nUpgrade your motorcycle's performance with this high-quality Wossner forged piston kit. Engineered for durability and optimal power delivery, this piston kit is designed to meet the rigorous demands of high-performance engines.\n\n#### Key Features:\n\n \n- Forged Construction: Provides superior strength and resilience compared to cast pistons, ensuring longevity even under extreme operating conditions.\n \n- Advanced Heat Dissipation: The design facilitates efficient transfer of heat from the combustion chamber to the cylinder walls, helping to maintain optimal operating temperatures and prevent premature wear.\n \n- Elliptical Piston Profile: This advanced profile ensures a consistent and uniform bearing surface during thermal expansion, maintaining precise tolerances and reducing friction.\n \n- Even Thrust Load Distribution: The piston design effectively distributes thrust loads, preventing piston collapse and ensuring smooth engine operation.\n \n- Two-Ring Design: Optimized for sealing and performance in high-revving, two-stroke engines.\n \n- Precision Manufacturing: Made in Germany to exacting standards for reliable performance and a perfect fit.\n\n#### Specifications:\n\n \n- Bore Size: 72.00mm\n \n- Measured Diameter: 71.98mm\n \n- Oversize Fitment: +0.02mm\n \n- Ring Configuration: Two Rings\n \n- Compression Ratio: 2-stroke (Wossner and OEM equivalent)\n\nThis Wossner piston kit offers a direct replacement for specific Beta models, delivering enhanced performance and reliability. Experience the difference that precision engineering and premium materials can make for your motorcycle.","weightGrams":null,"fitments":[{"make":"BETA","model":"RR 300","cc":null,"notes":null,"years":"2013–2017"},{"make":"BETA","model":"XTRAINER 300","cc":null,"notes":null,"years":"2015–2017"}],"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-beta-rr300-13-17-forged-wossner-8298dc","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/1050a6e67f8f:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/1050a6e67f8f: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."]}}