{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"0ca660583863","name":"PISTON KIT XR400 TRX400 87.00, FORGED WOSSNER 8604D200","sku":"56-W4606+200.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":false,"stock":0,"price":{"amount":182.86,"formatted":"£182.86"},"summary":"Wossner forged piston kit with an 87mm bore. Manufactured in Germany, this high-performance piston enhances strength, heat transfer, and durability. The elliptical design ensures uniform bearing surface distribution, reducing localized pressure and preventing piston collapse. Features forged construction for superior strength and durability, optimized heat transfer to cylinder walls, elliptical design for uniform bearing surface under heat expansion, and increased compression ratio for improved engine performance. Specifications: Bore 87mm (86.94mm actual), Displacement 397 cm³, Stroke 70.00mm, Clearance 0.06mm, Wossner Compression Ratio 11.00:1, OEM Compression Ratio 10.00:1, Dome Volume +3.20 cm³, Compression Height 26.20mm. Wossner Piston: 8604D200, Lock: CW20, Pin: WP052, Ring Set: 870XSY, Rod: P4021.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"87mm"},{"label":"Variant Id","value":"255774"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4606_2B200_2EWO/194560de560af9f7.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4606_2B200_2EWO/194560de560af9f7.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4606_2B200_2EWO/55ed0412b3fded22.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4606_2B200_2EWO/5a195906c9ed551a.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4606_2B200_2EWO/f05d2ec608f47479.jpg"],"description":"Wossner forged piston kit with an 87mm bore. Manufactured in Germany, this high-performance piston enhances strength, heat transfer, and durability. The elliptical design ensures uniform bearing surface distribution, reducing localized pressure and preventing piston collapse. Features forged construction for superior strength and durability, optimized heat transfer to cylinder walls, elliptical design for uniform bearing surface under heat expansion, and increased compression ratio for improved engine performance. Specifications: Bore 87mm (86.94mm actual), Displacement 397 cm³, Stroke 70.00mm, Clearance 0.06mm, Wossner Compression Ratio 11.00:1, OEM Compression Ratio 10.00:1, Dome Volume +3.20 cm³, Compression Height 26.20mm. Wossner Piston: 8604D200, Lock: CW20, Pin: WP052, Ring Set: 870XSY, Rod: P4021.","descriptionMarkdown":"### Wossner Forged Piston Kit 87.00mm for XR400 and TRX400\n\n This Wossner forged piston kit features an 87mm bore, designed to enhance the performance and durability of your motorcycle or ATV engine. Manufactured in Germany, Wossner pistons are engineered for superior strength and optimal heat transfer. The unique elliptical design ensures consistent bearing surface distribution, even under extreme operating temperatures, effectively reducing localized pressure and preventing premature wear or piston collapse. This kit is built to deliver increased power and reliability.\n\n#### Key Features:\n\n \n- Forged Construction: Provides exceptional strength and longevity for demanding applications.\n \n- Optimized Heat Transfer: Ensures efficient cooling and consistent cylinder wall temperatures.\n \n- Elliptical Design: Promotes uniform bearing surface distribution for reduced stress and improved durability under thermal expansion.\n \n- Increased Compression Ratio: Boosts engine performance for greater power output.\n \n- High-Quality Manufacturing: Proudly made in Germany for precision and reliability.\n\n#### Specifications:\n\n \n- Bore Size: 87.00mm (Actual: 86.94mm)\n \n- Displacement: 397 cm&sup3;\n \n- Stroke: 70.00mm\n \n- Piston Clearance: 0.06mm\n \n- Wossner Compression Ratio: 11.00:1\n \n- OEM Compression Ratio: 10.00:1\n \n- Dome Volume: +3.20 cm&sup3;\n \n- Compression Height: 26.20mm","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-xr400-trx400-8700-forged-wossner-8604d200","buyOneNow":null,"basketWithThis":null}},"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."]}}