{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"22d481390d56","name":"PISTON KIT 04-06 RMZ250 77 HC, FORGED WOSSNER 8661DA K1300-10052","sku":"56-W306.A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":195.02,"formatted":"£195.02"},"summary":"Wossner forged high-compression piston kit with a 77mm bore (76.96mm). Designed for superior strength and heat transfer efficiency, this piston ensures optimal combustion performance. The elliptical design distributes thrust loads evenly, reducing localized pressure and preventing piston collapse. Manufactured in Germany. Features: High-compression forged piston for increased performance, optimized heat transfer for improved efficiency, elliptical design ensures uniform bearing surface under heat expansion, even thrust load distribution to prevent piston collapse, manufactured in Germany. Specifications: Bore Size: 77mm (76.96mm), Compression Ratio: 13.5:1, Part Number: 8661DA, Lock Part Number: CW16, Pin Part Number: WP059, Ring Set Part Number: 770XAS-2, Rod Part Number: P4002, Displacement: 249 cm&sup3;, Stroke: 53.60mm, Clearance: 0.04mm, Wossner Compression Ratio: 13.2:1, OEM Compression Ratio: 12.6:1, Dome Volume: -4.00 cm&sup3;, Compression Height: 19.60mm. Cross-Reference OEM Part Numbers: K1300-10052, 4843M07700.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"255353"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W306_2EA_2EWO/aef65b8be6a78566.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W306_2EA_2EWO/aef65b8be6a78566.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W306_2EA_2EWO/33204025b5f3f699.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W306_2EA_2EWO/053a1fd07861ccfe.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W306_2EA_2EWO/a3b0bdb23eea00e8.jpg"],"description":"Wossner forged high-compression piston kit with a 77mm bore (76.96mm). Designed for superior strength and heat transfer efficiency, this piston ensures optimal combustion performance. The elliptical design distributes thrust loads evenly, reducing localized pressure and preventing piston collapse. Manufactured in Germany. Features: High-compression forged piston for increased performance, optimized heat transfer for improved efficiency, elliptical design ensures uniform bearing surface under heat expansion, even thrust load distribution to prevent piston collapse, manufactured in Germany. Specifications: Bore Size: 77mm (76.96mm), Compression Ratio: 13.5:1, Part Number: 8661DA, Lock Part Number: CW16, Pin Part Number: WP059, Ring Set Part Number: 770XAS-2, Rod Part Number: P4002, Displacement: 249 cm&sup3;, Stroke: 53.60mm, Clearance: 0.04mm, Wossner Compression Ratio: 13.2:1, OEM Compression Ratio: 12.6:1, Dome Volume: -4.00 cm&sup3;, Compression Height: 19.60mm. Cross-Reference OEM Part Numbers: K1300-10052, 4843M07700.","descriptionMarkdown":"### Wossner Forged High Compression Piston Kit - 77mm Bore\n\nEnhance your motorcycle's performance with this Wossner forged high-compression piston kit. Engineered for superior strength and optimal combustion, this piston is designed to deliver increased power and efficiency.\n\n#### Key Features:\n\n\t\n- High-compression forged design for a significant performance boost.\n\t\n- Advanced heat transfer technology for improved operational efficiency.\n\t\n- Innovative elliptical piston design ensures even thrust load distribution, preventing localized pressure and piston collapse under heat.\n\t\n- Precision manufactured in Germany for exceptional quality and durability.\n\n#### Specifications:\n\n\t\n- Bore Size: 77mm (76.96mm actual)\n\t\n- Compression Ratio: 13.5:1 (Wossner) / 12.6:1 (OEM)\n\t\n- Dome Volume: -4.00 cm&sup3;\n\t\n- Compression Height: 19.60mm\n\t\n- Piston Pin Part Number: WP059\n\t\n- Ring Set Part Number: 770XAS-2\n\t\n- Lock Part Number: CW16\n\t\n- Stroke: 53.60mm\n\t\n- Clearance: 0.04mm\n\t\n- Displacement: 249 cm&sup3;\n\t\n- Part Number: 8661DA","weightGrams":null,"fitments":[{"make":"SUZUKI","model":"RM-Z 250","cc":null,"notes":null,"years":"2004–2006"}],"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-04-06-rmz250-77-hc-forged-wossner-8661da-k1300-10052","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/22d481390d56:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/22d481390d56:1"}},"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."]}}