{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"bc4917635941","name":"PISTON KIT 04-06 RMZ250 77 HC, FORGED WOSSNER 8661DB","sku":"56-W306.B.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":195.02,"formatted":"£195.02"},"summary":"Wossner 8661DB forged high-compression piston kit with a 77.01mm bore for superior strength and heat transfer efficiency, ensuring optimal combustion performance. The elliptical design distributes thrust loads evenly, reducing localized pressure and preventing piston collapse. Manufactured in Germany. Features include optimized heat transfer, uniform bearing surface under heat expansion, and even thrust load distribution. Specifications: Bore Size 77.01mm (76.97mm), Compression Ratio 13.5:1, Part Number 8661DB, Lock Part Number CW16, Pin Part Number WP059, Ring Set Part Number 770XAS-2, Rod Part Number P4002, Displacement 249 cm³, Stroke 53.60mm, Clearance 0.04mm, Wossner Compression Ratio 13.2:1, OEM Compression Ratio 12.6:1, Dome Volume -4.00 cm³, Compression Height 19.60mm.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"255354"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W306_2EB_2EWO/aef65b8be6a78566.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W306_2EB_2EWO/aef65b8be6a78566.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W306_2EB_2EWO/33204025b5f3f699.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W306_2EB_2EWO/053a1fd07861ccfe.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W306_2EB_2EWO/c1c1be6c9d8fd3f0.jpg"],"description":"Wossner 8661DB forged high-compression piston kit with a 77.01mm bore for superior strength and heat transfer efficiency, ensuring optimal combustion performance. The elliptical design distributes thrust loads evenly, reducing localized pressure and preventing piston collapse. Manufactured in Germany. Features include optimized heat transfer, uniform bearing surface under heat expansion, and even thrust load distribution. Specifications: Bore Size 77.01mm (76.97mm), Compression Ratio 13.5:1, Part Number 8661DB, Lock Part Number CW16, Pin Part Number WP059, Ring Set Part Number 770XAS-2, Rod Part Number P4002, Displacement 249 cm³, Stroke 53.60mm, Clearance 0.04mm, Wossner Compression Ratio 13.2:1, OEM Compression Ratio 12.6:1, Dome Volume -4.00 cm³, Compression Height 19.60mm.","descriptionMarkdown":"### Wossner High-Compression Forged Piston Kit\n\nEnhance your motorcycle's performance with the Wossner High-Compression Forged Piston Kit. Engineered for superior strength and efficient heat transfer, this piston kit is designed to optimize combustion and deliver increased power.\n\n**Key Features:**\n\n \n- High-compression forged piston for boosted performance\n \n- Optimized heat transfer for improved operational efficiency\n \n- Elliptical piston design ensures a uniform bearing surface even with heat expansion\n \n- Evenly distributes thrust loads to prevent piston collapse\n \n- Precision manufactured in Germany for quality and reliability\n\n**Specifications:**\n\n \n- Bore Size: 77.01mm (76.97mm)\n \n- Compression Ratio: 13.5:1\n \n- Part Number: 8661DB\n \n- Lock Part Number: CW16\n \n- Pin Part Number: WP059\n \n- Ring Set Part Number: 770XAS-2\n \n- Rod Part Number: P4002\n \n- Displacement: 249 cm&sup3;\n \n- Stroke: 53.60mm\n \n- Clearance: 0.04mm\n \n- Wossner Compression Ratio: 13.2:1\n \n- OEM Compression Ratio: 12.6:1\n \n- Dome Volume: -4.00 cm&sup3;\n \n- Compression Height: 19.60mm","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-8661db","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/bc4917635941:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/bc4917635941:1"}},"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."]}}