{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"4155e369de7d","name":"PISTON KIT 13-16 SXF250 78mm A WOSSNER 8874DA HC KTM 77730007100","sku":"56-W954.A.WO.HC","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":30,"price":{"amount":188.83,"formatted":"£188.83"},"summary":"Wossner 78mm Bore Piston Kit (Part No. 56-W954.A.WO.HC) for KTM SXF250 2013-2016. High compression. This forged piston kit features enhanced strength, optimal heat transfer, and a uniform bearing surface due to its elliptical design. Achieves a high compression ratio of 14.50:1. Manufactured in Germany. Displacement: 249 cm3, Hub Stroke: 52.30 mm, Clearance: 0.04 mm, Dome Volume: -1.20 cm3, Compression Height: 19.50 mm. Kit includes piston, lock (P/N CW16), pin (P/N WP070), and ring set (P/N RIK78.00). Cross-reference numbers: 77730007100, 4981M07600.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"78.00mm"},{"label":"Variant Id","value":"258389"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W954_2EA_2EWO_2EHC/93b1ad94df66f263.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W954_2EA_2EWO_2EHC/93b1ad94df66f263.jpg"],"description":"Wossner 78mm Bore Piston Kit (Part No. 56-W954.A.WO.HC) for KTM SXF250 2013-2016. High compression. This forged piston kit features enhanced strength, optimal heat transfer, and a uniform bearing surface due to its elliptical design. Achieves a high compression ratio of 14.50:1. Manufactured in Germany. Displacement: 249 cm3, Hub Stroke: 52.30 mm, Clearance: 0.04 mm, Dome Volume: -1.20 cm3, Compression Height: 19.50 mm. Kit includes piston, lock (P/N CW16), pin (P/N WP070), and ring set (P/N RIK78.00). Cross-reference numbers: 77730007100, 4981M07600.","descriptionMarkdown":"### Wossner 78mm High Compression Piston Kit\n\nEnhance the performance and durability of your engine with this precision-engineered Wossner 78mm Bore Piston Kit. Crafted in Germany, Wossner forged pistons are renowned for their exceptional quality and innovative design, delivering superior strength and optimal heat transfer for demanding applications.\n\nThe elliptical design of these pistons ensures a uniform bearing surface, even under extreme heat expansion, effectively distributing thrust loads and preventing piston collapse for consistent, reliable performance. This kit is specifically designed for high compression, allowing you to achieve a higher compression ratio of 14.50:1 for increased power output.\n\n#### Key Features:\n\n \n- Enhanced Strength: Engineered for superior strength and durability using forged construction.\n \n- Optimal Heat Transfer: Meticulously designed to improve heat transfer from the combustion chamber.\n \n- Uniform Bearing Surface: Elliptical design prevents localized pressure and piston collapse under heat expansion.\n \n- High Compression: Achieves a 14.50:1 compression ratio for increased power.\n \n- German Craftsmanship: Manufactured to the highest standards of quality and precision in Germany.\n\n#### Product Details:\n\n \n- Bore Size: 78mm\n \n- Displacement: 249 cm³\n \n- Hub Stroke: 52.30 mm\n \n- Clearance: 0.04 mm\n \n- Dome Volume: -1.20 cm³\n \n- Compression Height: 19.50 mm\n \n- Included Components: Piston, lock (CW16), pin (WP070), and ring set (RIK78.00).\n\nThis Wossner piston kit is a high-quality upgrade for performance-oriented engine builds, offering a perfect blend of power, reliability, and precision engineering. Cross-reference numbers include 77730007100 and 4981M07600.","weightGrams":null,"fitments":[{"make":"GAS-GAS","model":"EC F 250","cc":null,"notes":null,"years":"2021–2023"},{"make":"HUSABERG","model":"FE 250","cc":null,"notes":null,"years":"2014"},{"make":"HUSQVARNA","model":"FC 250","cc":null,"notes":null,"years":"2014–2015"},{"make":"HUSQVARNA","model":"FE 250","cc":null,"notes":null,"years":"2014–2023"},{"make":"KTM","model":"250 EXC-F","cc":null,"notes":null,"years":"2014–2023"},{"make":"KTM","model":"250 FREERIDE F","cc":null,"notes":null,"years":"2018–2020"},{"make":"KTM","model":"250 FREERIDE R","cc":null,"notes":null,"years":"2018–2020"},{"make":"KTM","model":"250 SX-F","cc":null,"notes":null,"years":"2013–2015"},{"make":"KTM","model":"250 XC-F","cc":null,"notes":null,"years":"2013–2014"},{"make":"KTM","model":"250 XCF-W","cc":null,"notes":null,"years":"2013–2014"}],"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-13-16-sxf250-78mm-a-wossner-8874da-hc-ktm-77730007100","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/4155e369de7d:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/4155e369de7d: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."]}}