{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"1e320cb827a1","name":"PISTON KIT YZF WRF 250 3-RING, WOSSNER 8712DB 08-13 77mm","sku":"56-W240+00B.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 a 77.01mm bore and 76.97mm diameter. This 3-ring piston is engineered for durability and high performance, featuring superior strength and design. Manufactured in Germany, it ensures optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Features include forged construction, optimized heat transfer, elliptical design for uniform load distribution, and 3-ring piston design. Specifications: Bore 77.01mm, Diameter 76.97mm, Display (cm³) 249, Stroke (mm) 53.60, Clearance (mm) 0.04, Wossner Compression Ratio OEM, OEM Compression Ratio 13.50:1, Dome Volume (cm³) -2.90, Compression Height (mm) 22.20. Cross-reference OEM Part Numbers: Wossner Piston Yamaha YZ250F (PN# 8712DB), Lock P/N: CW16, Pin P/N: WP059, Ring Set P/N: 770XAS-2, Rod P/N: P4005. Weight is 258 grams.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"Variant Id","value":"255156"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W240_2B00B_2EWO/320c772ee6b8d997.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W240_2B00B_2EWO/320c772ee6b8d997.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W240_2B00B_2EWO/c24d1c34ab7097b6.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W240_2B00B_2EWO/30cf69e03098de95.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W240_2B00B_2EWO/e0a14c8fcbf665f0.jpg"],"description":"Wossner forged piston kit with a 77.01mm bore and 76.97mm diameter. This 3-ring piston is engineered for durability and high performance, featuring superior strength and design. Manufactured in Germany, it ensures optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Features include forged construction, optimized heat transfer, elliptical design for uniform load distribution, and 3-ring piston design. Specifications: Bore 77.01mm, Diameter 76.97mm, Display (cm³) 249, Stroke (mm) 53.60, Clearance (mm) 0.04, Wossner Compression Ratio OEM, OEM Compression Ratio 13.50:1, Dome Volume (cm³) -2.90, Compression Height (mm) 22.20. Cross-reference OEM Part Numbers: Wossner Piston Yamaha YZ250F (PN# 8712DB), Lock P/N: CW16, Pin P/N: WP059, Ring Set P/N: 770XAS-2, Rod P/N: P4005. Weight is 258 grams.","descriptionMarkdown":"### Wossner Forged Piston Kit for Yamaha YZF WRF 250\n\nUpgrade your motorcycle's performance with this high-quality Wossner forged piston kit. Engineered for durability and exceptional performance, this 3-ring piston is designed to meet the demands of high-performance riding.\n\n**Key Features:**\n\n\t\n- Forged Construction: Provides superior strength and resilience for extended engine life.\n\t\n- Optimized Heat Transfer: Promotes efficient combustion and helps maintain optimal engine temperatures.\n\t\n- Elliptical Design: Ensures a uniform bearing surface even under extreme heat, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse.\n\t\n- 3-Ring Piston Design: Enhances sealing and durability for consistent power output.\n\t\n- German Manufacturing: Precision-engineered and manufactured in Germany for exceptional quality and reliability.\n\n**Specifications:**\n\n\t\n- Bore: 77.01mm\n\t\n- Diameter: 76.97mm\n\t\n- Displacement: 249 cm&sup3;\n\t\n- Stroke: 53.60mm\n\t\n- Clearance: 0.04mm\n\t\n- Dome Volume: -2.90 cm&sup3;\n\t\n- Compression Height: 22.20mm\n\t\n- Wossner Compression Ratio: OEM\n\t\n- OEM Compression Ratio: 13.50:1\n\n**Included Components:**\n\n\t\n- Piston (Part Number: 8712DB)\n\t\n- Lock Ring (Part Number: CW16)\n\t\n- Pin (Part Number: WP059)\n\t\n- Ring Set (Part Number: 770XAS-2)","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-yzf-wrf-250-3-ring-wossner-8712db-08-13-77mm","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."]}}