{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"190461451b00","name":"PISTON KIT YFM YFB250 72.00, WOSSNER FORGED 8659D100","sku":"56-W4675+100.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":182.4,"formatted":"£182.40"},"summary":"Wossner 72mm Bore Piston Kit (Part No. 8659D100) is a high-strength forged piston. It features an elliptical design for even load distribution and optimized heat transfer. Manufactured in Germany, this piston maintains the OEM compression ratio for reliable engine performance. Specifications include a bore size of 72mm, actual bore diameter of 71.94mm, OEM compression ratio of 9.50:1, displacement of 229cc, stroke of 58.00mm, clearance of 0.06mm, dome volume of -4.70cm³, and compression height of 23.80mm. Cross-reference OEM part numbers are Lock P/N CW16, Pin P/N WP041, and Ring Set P/N 720XDS.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"72mm"},{"label":"Variant Id","value":"255889"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4675_2B100_2EWO/f22e493ec9548a8d.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4675_2B100_2EWO/f22e493ec9548a8d.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4675_2B100_2EWO/c1bc64aed7840258.jpg"],"description":"Wossner 72mm Bore Piston Kit (Part No. 8659D100) is a high-strength forged piston. It features an elliptical design for even load distribution and optimized heat transfer. Manufactured in Germany, this piston maintains the OEM compression ratio for reliable engine performance. Specifications include a bore size of 72mm, actual bore diameter of 71.94mm, OEM compression ratio of 9.50:1, displacement of 229cc, stroke of 58.00mm, clearance of 0.06mm, dome volume of -4.70cm³, and compression height of 23.80mm. Cross-reference OEM part numbers are Lock P/N CW16, Pin P/N WP041, and Ring Set P/N 720XDS.","descriptionMarkdown":"### Wossner 72mm Forged Piston Kit for Yamaha 250cc Models\n\nUpgrade your Yamaha's performance with this high-quality Wossner forged piston kit. Designed for strength and reliability, this kit is engineered to optimize engine performance and durability for various Yamaha 250cc applications.\n\n**Key Features:**\n\n\t\n- High-strength forged piston construction for superior durability\n\t\n- Optimized heat transfer within the combustion chamber for improved efficiency\n\t\n- Elliptical design ensures even load distribution, reducing localized pressure and preventing piston collapse\n\t\n- Manufactured in Germany to exacting standards\n\t\n- Maintains OEM compression ratio for reliable engine performance\n\n**Specifications:**\n\n\t\n- Bore Size: 72mm\n\t\n- Actual Bore Diameter: 71.94mm\n\t\n- Compression Ratio: OEM (9.50:1)\n\t\n- Displacement: 229cc\n\t\n- Stroke: 58.00mm\n\t\n- Clearance: 0.06mm\n\t\n- Dome Volume: -4.70cm&sup3;\n\t\n- Compression Height: 23.80mm\n\n**Included Components:**\n\n\t\n- Forged Piston\n\t\n- Lock P/N: CW16\n\t\n- Pin P/N: WP041\n\t\n- Ring Set P/N: 720XDS","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-yfm-yfb250-7200-wossner-forged-8659d100","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/190461451b00:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/190461451b00:1"}},"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."]}}