{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"40690b25d3fb","name":"PISTON KIT 05-07 YZF250 77mm, WOSSNER 8614DB 3-RING","sku":"56-W189+00B.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 with a 77.01mm bore and a 3-ring design. This piston is engineered for optimal combustion chamber heat transfer and a uniform bearing surface under heat expansion, which reduces localized pressure and piston collapse. Manufactured in Germany, this piston features an elliptical design for even thrust load distribution. Specifications include a bore of 77.01mm, standard size piston part number 8614DB, lock part number CW16, pin part number WP059, ring set part number 770XAS, displacement of 249 cm&sup3;, stroke of 53.6mm, clearance of 0.04mm, OEM compression ratio of 12.50:1, dome volume of -4.50 cm&sup3;, and a compression height of 22.20mm.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"254921"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock53867_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock53867_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock53867_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock53867_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock53867_4.jpg"],"description":"Wossner forged piston kit with a 77.01mm bore and a 3-ring design. This piston is engineered for optimal combustion chamber heat transfer and a uniform bearing surface under heat expansion, which reduces localized pressure and piston collapse. Manufactured in Germany, this piston features an elliptical design for even thrust load distribution. Specifications include a bore of 77.01mm, standard size piston part number 8614DB, lock part number CW16, pin part number WP059, ring set part number 770XAS, displacement of 249 cm&sup3;, stroke of 53.6mm, clearance of 0.04mm, OEM compression ratio of 12.50:1, dome volume of -4.50 cm&sup3;, and a compression height of 22.20mm.","descriptionMarkdown":"### Wossner Forged Piston Kit 77mm 3-Ring\n\nEnhance the performance and durability of your motorcycle engine with this Wossner forged piston kit. Engineered for precision and strength, this kit features a 77.01mm bore and a three-ring design to optimize combustion and sealing. Manufactured in Germany, Wossner pistons are renowned for their superior quality and performance.\n\n**Key Features:**\n\n\t\n- Forged piston construction for exceptional strength and resistance to extreme conditions.\n\t\n- Three-ring design ensures superior compression sealing and reduced blow-by for maximum power output.\n\t\n- Optimized for efficient heat transfer to the cylinder walls, promoting uniform temperatures and reducing stress.\n\t\n- Elliptical piston skirt design provides a uniform bearing surface, even under thermal expansion, preventing localized pressure and piston collapse.\n\t\n- Precision manufacturing in Germany guarantees high standards of quality and reliability.\n\n**Specifications:**\n\n\t\n- Bore Size: 77.01mm (0.01mm oversize)\n\t\n- Piston Type: Standard size (PN# 8614DB)\n\t\n- Lock Ring Part Number: CW16\n\t\n- Wrist Pin Part Number: WP059\n\t\n- Ring Set Part Number: 770XAS\n\t\n- Engine Displacement: 249 cm&sup3;\n\t\n- Stroke Length: 53.6mm\n\t\n- Piston to Cylinder Clearance: 0.04mm\n\t\n- Dome Volume: -4.50 cm&sup3;\n\t\n- Compression Height: 22.20mm","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-05-07-yzf250-77mm-wossner-8614db-3-ring","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/40690b25d3fb:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/40690b25d3fb: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."]}}