{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"8f0dd22c3b43","name":"PISTON KIT 84-85 CR250 66.25, WOSSNER 8156D025 HONDA MX","sku":"56-W526.P1.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":153.68,"formatted":"£153.68"},"summary":"Wossner piston kit for Honda CR250R and ATAC250 1984-1985 models. Features a 66.25 mm bore and 66.19 mm actual piston diameter. Forged in Germany for high strength and durability, this piston optimizes heat transfer and features an elliptical design for even load distribution under thermal expansion, reducing localized pressure and the risk of piston collapse. Specifications include: Bore size 66.25 mm, Actual piston diameter 66.19 mm, Display (cm³) 246, Stroke 72.00 mm, Clearance 0.06 mm, Compression height 38.00 mm. Wossner Piston Part Number: 8156D025, Lock Part Number: CW18, Pin Part Number: WP033, Ring Set Part Number: RSB6625. Alternate Part Number: 56-W526.P1.WO.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"66.25mm"},{"label":"Variant Id","value":"256690"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55636_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55636_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55636_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55636_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55636_4.jpg"],"description":"Wossner piston kit for Honda CR250R and ATAC250 1984-1985 models. Features a 66.25 mm bore and 66.19 mm actual piston diameter. Forged in Germany for high strength and durability, this piston optimizes heat transfer and features an elliptical design for even load distribution under thermal expansion, reducing localized pressure and the risk of piston collapse. Specifications include: Bore size 66.25 mm, Actual piston diameter 66.19 mm, Display (cm³) 246, Stroke 72.00 mm, Clearance 0.06 mm, Compression height 38.00 mm. Wossner Piston Part Number: 8156D025, Lock Part Number: CW18, Pin Part Number: WP033, Ring Set Part Number: RSB6625. Alternate Part Number: 56-W526.P1.WO.","descriptionMarkdown":"### Wossner Piston Kit - Performance and Durability Engineered\n\nThis Wossner piston kit is meticulously crafted for optimal performance and longevity. Engineered in Germany, it features a robust forged construction designed to withstand the rigors of high-performance riding. The piston's innovative elliptical profile is key to its superior function, promoting even load distribution under thermal expansion. This design minimizes localized pressure points, significantly reducing the risk of piston collapse and ensuring consistent operation.\n\n**Key Features:**\n\n- Forged construction for enhanced durability and strength.\n\n- Advanced design for efficient heat dissipation, preventing overheating.\n\n- Elliptical piston profile ensures even thrust load distribution for smoother operation.\n\n- Manufactured to the highest standards in Germany.\n\n**Specifications:**\n\n- Bore Size: 66.25 mm\n\n- Actual Piston Diameter: 66.19 mm\n\n- Stroke: 72.00 mm\n\n- Clearance: 0.06 mm\n\n- Compression Height: 38.00 mm\n\n- Wossner Compression Ratio: 2-stroke\n\n- OEM Compression Ratio: 2-stroke\n\n**Component Part Numbers:**\n\n- Wossner Piston Part Number: 8156D025\n\n- Lock Part Number: CW18\n\n- Pin Part Number: WP033\n\n- Ring Set Part Number: RSB6625","weightGrams":null,"fitments":[{"make":"HONDA","model":"ATC R 250","cc":null,"notes":null,"years":"1985–1986"},{"make":"HONDA","model":"CR 250","cc":null,"notes":null,"years":"1984–1985"},{"make":"HONDA","model":"TRX 250","cc":null,"notes":null,"years":"1985–1989"}],"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-84-85-cr250-6625-wossner-8156d025-honda-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/8f0dd22c3b43:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/8f0dd22c3b43:1"}},"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."]}}