{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"9d5a675b7db1","name":"PISTON KIT 14-15 YZF250 77.00, FORGED WOSSNER 8893DB","sku":"56-W4961.B.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":182.86,"formatted":"£182.86"},"summary":"Wossner forged piston kit part number 8893DB features a 77.01mm bore with an actual piston size of 76.97mm. This piston is designed for racing and performance applications. Its forged construction and elliptical profile ensure strength, heat efficiency, and balanced load distribution. Manufactured in Germany, this piston is a direct OEM replacement and is easy to install. Specifications include a displacement of 249cm³, a stroke of 53.60mm, 0.05mm clearance, a dome volume of -3.00cm³, a Wossner compression ratio of 13.70:1 (OEM 13.50:1), and a compression height of 20.20mm. Cross-reference OEM part numbers are 40116M07700, CW16, WP087, and 770XAS-2.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"256478"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55424_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55424_1.jpg"],"description":"Wossner forged piston kit part number 8893DB features a 77.01mm bore with an actual piston size of 76.97mm. This piston is designed for racing and performance applications. Its forged construction and elliptical profile ensure strength, heat efficiency, and balanced load distribution. Manufactured in Germany, this piston is a direct OEM replacement and is easy to install. Specifications include a displacement of 249cm³, a stroke of 53.60mm, 0.05mm clearance, a dome volume of -3.00cm³, a Wossner compression ratio of 13.70:1 (OEM 13.50:1), and a compression height of 20.20mm. Cross-reference OEM part numbers are 40116M07700, CW16, WP087, and 770XAS-2.","descriptionMarkdown":"### Wossner Forged Piston Kit - 77.01mm Bore\n\nUpgrade your engine's performance and durability with the Wossner Forged Piston Kit. This high-quality piston is engineered for demanding applications, offering superior strength and efficiency.\n\n**Key Features:**\n\n\t\n- Forged Construction: Provides exceptional strength and resilience for high-performance engines.\n\t\n- Elliptical Profile: Ensures even expansion and balanced load distribution under stress, contributing to engine longevity.\n\t\n- Optimized Heat Dissipation: Designed for efficient heat management, crucial for sustained performance.\n\t\n- German Engineering: Manufactured in Germany to exacting standards for reliable quality.\n\t\n- Direct Replacement: Intended as an OEM replacement for straightforward installation.\n\t\n- Performance Enhancement: Suitable for racing and performance-oriented builds.\n\n**Specifications:**\n\n\t\n- Bore Size: 77.01mm\n\t\n- Actual Piston Size: 76.97mm\n\t\n- Displacement: 249cm&sup3;\n\t\n- Stroke: 53.60mm\n\t\n- Clearance: 0.05mm\n\t\n- Dome Volume: -3.00cm&sup3;\n\t\n- Wossner Compression Ratio: 13.70:1\n\t\n- OEM Compression Ratio: 13.50:1\n\t\n- Compression Height: 20.20mm\n\n**Included Components:**\n\n\t\n- Piston\n\t\n- Lock (CW16)\n\t\n- Pin (WP087)\n\t\n- Ring Set (770XAS-2)","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"WR 250F","cc":null,"notes":null,"years":"2015–2019"},{"make":"YAMAHA","model":"WRF 250","cc":null,"notes":null,"years":"2014–2018"},{"make":"YAMAHA","model":"YZ 250F","cc":null,"notes":null,"years":"2014–2018"},{"make":"YAMAHA","model":"YZ 250FX","cc":null,"notes":null,"years":"2014–2019"},{"make":"YAMAHA","model":"YZF 250","cc":null,"notes":null,"years":"2014–2015"},{"make":"YAMAHA","model":"YZF X 250","cc":null,"notes":null,"years":"2014–2019"}],"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-14-15-yzf250-7700-forged-wossner-8893db","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/9d5a675b7db1:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/9d5a675b7db1:1"}},"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."]}}