{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"976787969874","name":"PISTON KIT 98-01 KTM LC4 400 89.00, WOSSNER 8636DA HC 57530007000","sku":"56-W215.00A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":208.24,"formatted":"£208.24"},"summary":"Wossner forged high-compression Pro Series piston kit with an elliptical design for superior strength, optimal heat transfer, and uniform bearing surface under heat expansion. This piston reduces localized pressure and prevents piston collapse. Bore size 89.00mm, actual bore diameter 88.94mm, displacement 398 cm&sup3;, stroke 64.00mm, clearance 0.06mm. Wossner compression ratio 12.50:1, OEM compression ratio 11.00:1. Dome volume +12.20 cm&sup3;, compression height 27.50mm. Includes lock part number CW20, pin part number WP038, and ring set part number 890XSY. Manufactured in Germany. Cross-reference OEM part number 57530007000.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"89mm"},{"label":"Variant Id","value":"255041"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W215_2E00A_2EWO/253b5a814f8c4439.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W215_2E00A_2EWO/253b5a814f8c4439.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W215_2E00A_2EWO/f6f9865d6d76fdaa.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W215_2E00A_2EWO/292efbcd6fd5a71d.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W215_2E00A_2EWO/059cd6685537cc79.jpg"],"description":"Wossner forged high-compression Pro Series piston kit with an elliptical design for superior strength, optimal heat transfer, and uniform bearing surface under heat expansion. This piston reduces localized pressure and prevents piston collapse. Bore size 89.00mm, actual bore diameter 88.94mm, displacement 398 cm&sup3;, stroke 64.00mm, clearance 0.06mm. Wossner compression ratio 12.50:1, OEM compression ratio 11.00:1. Dome volume +12.20 cm&sup3;, compression height 27.50mm. Includes lock part number CW20, pin part number WP038, and ring set part number 890XSY. Manufactured in Germany. Cross-reference OEM part number 57530007000.","descriptionMarkdown":"### Wossner Forged Piston Kit for KTM 400 LC4\n\n Enhance your motorcycle's performance with this Wossner forged piston kit. Engineered for high-compression applications, this Pro Series piston is designed to deliver superior strength, durability, and optimal heat transfer for demanding engines. Manufactured in Germany, Wossner pistons are renowned for their precision engineering and high-quality materials.\n\n**Key Features:**\n\n \n- High-compression Pro Series piston design for increased power output.\n \n- Forged construction provides exceptional strength and resistance to wear.\n \n- Optimized heat transfer ensures efficient combustion chamber operation.\n \n- Unique elliptical design promotes uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse.\n \n- Precision manufactured in Germany for guaranteed quality.\n\n**Specifications:**\n\n \n- Bore Size: 89.00mm\n \n- Actual Bore Diameter: 88.94mm\n \n- Displacement: 398 cm&sup3;\n \n- Stroke: 64.00mm\n \n- Clearance: 0.06mm\n \n- Wossner Compression Ratio: 12.50:1\n \n- OEM Compression Ratio: 11.00:1\n \n- Dome Volume: +12.20 cm&sup3;\n \n- Compression Height: 27.50mm\n \n- Lock Part Number: CW20\n \n- Pin Part Number: WP038\n \n- Ring Set Part Number: 890XSY\n\n**Cross-Reference OEM Part Numbers:**\n\n \n- 57530007000","weightGrams":null,"fitments":[{"make":"KTM","model":"400 LC-4","cc":null,"notes":null,"years":"1998–2000"},{"make":"KTM","model":"400 LC4","cc":null,"notes":null,"years":"2001"}],"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-98-01-ktm-lc4-400-8900-wossner-8636da-hc-57530007000","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/976787969874:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/976787969874:1"}},"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."]}}