{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"a06309e68bdf","name":"PISTON KIT 99-08 TRX XR 87.50, FORGED WOSSNER 8702D250 400","sku":"56-W4628_250.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":220.73,"formatted":"£220.73"},"summary":"Wossner forged piston kit with an 87.50mm bore. 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 include 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. Made in Germany. Specifications: Bore: 87.50mm (87.44mm actual), Display: 397 cm³, Stroke: 70.00mm, Clearance: 0.06mm, Wossner Compression Ratio: 12.50:1, OEM Compression Ratio: 10.00:1, Dome Volume: +8.40 cm³, Compression Height: 26.20mm. Wossner Piston part number: 8702D250.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"87.5mm"},{"label":"Variant Id","value":"255790"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4628_5F250_2EWO/31e1a59c078820e7.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4628_5F250_2EWO/31e1a59c078820e7.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4628_5F250_2EWO/ec45b333ba6541a6.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4628_5F250_2EWO/73147bb726abab69.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4628_5F250_2EWO/e61d69049755c1d2.jpg"],"description":"Wossner forged piston kit with an 87.50mm bore. 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 include 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. Made in Germany. Specifications: Bore: 87.50mm (87.44mm actual), Display: 397 cm³, Stroke: 70.00mm, Clearance: 0.06mm, Wossner Compression Ratio: 12.50:1, OEM Compression Ratio: 10.00:1, Dome Volume: +8.40 cm³, Compression Height: 26.20mm. Wossner Piston part number: 8702D250.","descriptionMarkdown":"### Wossner Forged Piston Kit 87.50mm for Honda TRX 400\n\n Upgrade your Honda TRX400EX or TRX400X with this high-performance forged piston kit from Wossner. Engineered in Germany, this piston offers exceptional strength, improved heat transfer, and enhanced durability for demanding off-road applications. The innovative elliptical design ensures even distribution of bearing surface pressure, even under extreme heat, preventing premature wear and potential piston collapse.\n\n#### Key Features:\n\n \n- Forged construction for superior strength and longevity\n \n- Optimized for efficient heat transfer to the cylinder walls\n \n- Elliptical piston design promotes uniform bearing surface distribution\n \n- Increases compression ratio for noticeable performance gains\n \n- Precision manufactured in Germany\n\n#### Specifications:\n\n \n- Bore: 87.50mm (actual 87.44mm)\n \n- Displacement: 397 cm&sup3;\n \n- Stroke: 70.00mm\n \n- Clearance: 0.06mm\n \n- Wossner Compression Ratio: 12.50:1\n \n- OEM Compression Ratio: 10.00:1\n \n- Dome Volume: +8.40 cm&sup3;\n \n- Compression Height: 26.20mm\n\n#### Includes:\n\n \n- Wossner Piston: 8702D250\n \n- Lock: CW20\n \n- Pin: WP052\n \n- Ring Set: 875XSY\n \n- Rod: P4021","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-99-08-trx-xr-8750-forged-wossner-8702d250-400","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/a06309e68bdf:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/a06309e68bdf: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."]}}