{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"e3a8af51d692","name":"PISTON KIT 84-85 CR250 66.50, WOSSNER 8156D050 HONDA MX","sku":"56-W526.P2.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":165.94,"formatted":"£165.94"},"summary":"Wossner piston kit with a 66.50 mm bore size and an actual piston diameter of 66.44 mm. Forged in Germany for strength and efficient thermal performance, this piston promotes effective heat transfer from the combustion chamber to the cylinder walls. Its elliptical profile ensures uniform bearing contact during thermal expansion, helping to distribute thrust loads evenly and reduce the risk of piston failure. Specifications include a 246 cm³ displacement, 72.00 mm stroke, 0.06 mm clearance, and 38.00 mm compression height. This is a 2-stroke piston kit with a Wossner compression ratio and OEM compression ratio. Wossner Piston Part Number: 8156D050. Includes Lock Part Number: CW18, Pin Part Number: WP033, and Ring Set Part Number: RSB6650 x2. Alternate Part Number: 56-W526.P2.WO. Weight: 328 grams.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"66.5mm"},{"label":"Variant Id","value":"256691"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W526_2EP2_2EWO/6f07556ed6c39352.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W526_2EP2_2EWO/6f07556ed6c39352.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W526_2EP2_2EWO/df3c023191440e59.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W526_2EP2_2EWO/d944df6450139ac7.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W526_2EP2_2EWO/7b57b15a40d70f47.jpg"],"description":"Wossner piston kit with a 66.50 mm bore size and an actual piston diameter of 66.44 mm. Forged in Germany for strength and efficient thermal performance, this piston promotes effective heat transfer from the combustion chamber to the cylinder walls. Its elliptical profile ensures uniform bearing contact during thermal expansion, helping to distribute thrust loads evenly and reduce the risk of piston failure. Specifications include a 246 cm³ displacement, 72.00 mm stroke, 0.06 mm clearance, and 38.00 mm compression height. This is a 2-stroke piston kit with a Wossner compression ratio and OEM compression ratio. Wossner Piston Part Number: 8156D050. Includes Lock Part Number: CW18, Pin Part Number: WP033, and Ring Set Part Number: RSB6650 x2. Alternate Part Number: 56-W526.P2.WO. Weight: 328 grams.","descriptionMarkdown":"### Wossner Piston Kit for Honda CR250R and ATAC250\n\nThis Wossner piston kit is engineered for strength and efficient thermal performance. Manufactured in Germany, this forged piston promotes effective heat transfer from the combustion chamber to the cylinder walls. The piston's elliptical profile ensures uniform bearing contact during thermal expansion, helping to distribute thrust loads evenly and reduce the risk of piston failure.\n\n#### Key Features\n\n\t\n- Forged piston for increased structural integrity\n\t\n- Engineered for optimal heat transfer efficiency\n\t\n- Elliptical shape reduces localized pressure under heat expansion\n\t\n- Manufactured in Germany\n\n#### Specifications\n\n\t\n- Bore size: 66.50 mm\n\t\n- Actual piston diameter: 66.44 mm\n\t\n- Display (cm&sup3;): 246\n\t\n- Stroke: 72.00 mm\n\t\n- Clearance: 0.06 mm\n\t\n- Compression height: 38.00 mm\n\t\n- Wossner compression ratio: 2-stroke\n\t\n- OEM compression ratio: 2-stroke\n\n#### Component Part Numbers\n\n\t\n- Wossner Piston Part Number: 8156D050\n\t\n- Lock Part Number: CW18\n\t\n- Pin Part Number: WP033\n\t\n- Ring Set Part Number: RSB6650 x2","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-cr250-6650-wossner-8156d050-honda-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/e3a8af51d692:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/e3a8af51d692:1"}},"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."]}}