{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"01f9260a1319","name":"PISTON KIT 05-07 YZF250 77mm, WOSSNER 8614DC 3-RING","sku":"56-W189+00C.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 77.02mm bore and a three-ring design. Engineered for optimal combustion chamber heat transfer and uniform bearing surface under heat expansion, reducing localized pressure and piston collapse. Features include superior strength, enhanced sealing, optimized heat transfer to cylinder walls, and an elliptical design for uniform bearing surface and even thrust load distribution. Manufactured in Germany. Bore: 77.02mm (+0.02mm oversize). Standard size piston (PN# 8614DC). Lock Part Number: CW16. Pin Part Number: WP059. Ring Set Part Number: 770XAS. Displacement: 249 cm³. Stroke: 53.6mm. Clearance: 0.04mm. Wossner Compression Ratio: OEM. OEM Compression Ratio: 12.50:1. Dome Volume: -4.50 cm³. Compression Height: 22.20mm. Weight: 258 grams.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"254922"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock53868_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock53868_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock53868_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock53868_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock53868_4.jpg"],"description":"Wossner forged piston kit with a 77.02mm bore and a three-ring design. Engineered for optimal combustion chamber heat transfer and uniform bearing surface under heat expansion, reducing localized pressure and piston collapse. Features include superior strength, enhanced sealing, optimized heat transfer to cylinder walls, and an elliptical design for uniform bearing surface and even thrust load distribution. Manufactured in Germany. Bore: 77.02mm (+0.02mm oversize). Standard size piston (PN# 8614DC). Lock Part Number: CW16. Pin Part Number: WP059. Ring Set Part Number: 770XAS. Displacement: 249 cm³. Stroke: 53.6mm. Clearance: 0.04mm. Wossner Compression Ratio: OEM. OEM Compression Ratio: 12.50:1. Dome Volume: -4.50 cm³. Compression Height: 22.20mm. Weight: 258 grams.","descriptionMarkdown":"### Wossner Forged Piston Kit - 77mm Bore\n\nEnhance your motorcycle's performance and durability with the Wossner Forged Piston Kit. This premium kit features a 77.02mm bore, engineered for optimal combustion chamber heat transfer and a uniform bearing surface under heat expansion. Its advanced design reduces localized pressure and prevents piston collapse, ensuring longevity and smooth operation.\n\n**Key Features:**\n\n \n- Forged Construction: Provides superior strength and a precisely engineered design for demanding conditions.\n \n- Three-Ring Design: Offers enhanced sealing capabilities and increased durability for optimal engine performance.\n \n- Optimized Heat Transfer: Ensures efficient heat dissipation to cylinder walls, contributing to consistent engine temperature.\n \n- Elliptical Design: Creates a uniform bearing surface and distributes thrust load evenly, even under extreme heat.\n \n- German Manufacturing: Built with precision and quality standards synonymous with German engineering.\n\n**Specifications:**\n\n \n- Bore Size: 77.02mm (+0.02mm oversize)\n \n- Piston Part Number: 8614DC\n \n- Lock Part Number: CW16\n \n- Pin Part Number: WP059\n \n- Ring Set Part Number: 770XAS\n \n- Displacement: 249 cm&sup3;\n \n- Stroke: 53.6mm\n \n- Recommended Clearance: 0.04mm\n \n- Dome Volume: -4.50 cm&sup3;\n \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-8614dc-3-ring","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/01f9260a1319:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/01f9260a1319:1"}},"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."]}}