{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"b184b95657a6","name":"PISTON KIT 07-09 RMZ250 77.00, WOSSNER 8666DA SUZUKI 12111-10H20-0F0","sku":"56-W4921.A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":false,"stock":0,"price":{"amount":172.51,"formatted":"£172.51"},"summary":"Wossner 8666DA forged piston kit with a 77.00mm bore. Designed for excellent durability, heat transfer, and performance. Its elliptical design ensures even bearing contact under heat expansion, reducing stress points and preventing piston collapse. Features forged piston construction, optimized heat transfer, elliptical shape for uniform pressure distribution, and reduced risk of localized pressure and piston failure. Manufactured in Germany. Specifications: Bore 77.00 mm, Actual Bore Diameter 76.96 mm, Display 249 cm&sup3;, Hub Stroke 53.60 mm, Clearance 0.04 mm, Compression Height 19.60 mm, Dome Volume -3.30 cm&sup3;, Wossner Compression Ratio OEM, OEM Compression Ratio 13.40:1. Includes piston 8666DA, lock CW16, pin WP070, ring set 770XAS-2, rod P4004, main bearing 2 x MB830046. Part No. 56-W4921.A.WO. OEM Reference 12111-10H20-0F0, 4921M07700.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"256380"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4921_2EA_2EWO/2323854c64346967.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4921_2EA_2EWO/2323854c64346967.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4921_2EA_2EWO/030b78985eee716d.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4921_2EA_2EWO/78a765523737346b.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4921_2EA_2EWO/97975676e6bd1a8d.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4921_2EA_2EWO/4d0a5051ecf525cf.jpg"],"description":"Wossner 8666DA forged piston kit with a 77.00mm bore. Designed for excellent durability, heat transfer, and performance. Its elliptical design ensures even bearing contact under heat expansion, reducing stress points and preventing piston collapse. Features forged piston construction, optimized heat transfer, elliptical shape for uniform pressure distribution, and reduced risk of localized pressure and piston failure. Manufactured in Germany. Specifications: Bore 77.00 mm, Actual Bore Diameter 76.96 mm, Display 249 cm&sup3;, Hub Stroke 53.60 mm, Clearance 0.04 mm, Compression Height 19.60 mm, Dome Volume -3.30 cm&sup3;, Wossner Compression Ratio OEM, OEM Compression Ratio 13.40:1. Includes piston 8666DA, lock CW16, pin WP070, ring set 770XAS-2, rod P4004, main bearing 2 x MB830046. Part No. 56-W4921.A.WO. OEM Reference 12111-10H20-0F0, 4921M07700.","descriptionMarkdown":"### Wossner 77.00mm Forged Piston Kit for Suzuki RM-Z250\n\nEnhance the performance and durability of your Suzuki RM-Z250 with the Wossner 8666DA forged piston kit. Precision-engineered in Germany, this piston kit is designed for optimal power delivery and longevity.\n\n#### Key Features:\n\n\t\n- Forged Construction: Delivers superior strength and reliability compared to cast pistons, ensuring it can withstand the demands of high-performance riding.\n\t\n- Optimized Heat Transfer: Designed to efficiently transfer heat away from the combustion chamber, contributing to consistent engine performance and reduced wear.\n\t\n- Elliptical Design: Features an elliptical piston skirt that ensures even bearing contact, even under extreme heat expansion. This design minimizes stress points, preventing localized pressure and potential piston collapse.\n\t\n- German Engineering: Manufactured to exacting standards in Germany, guaranteeing exceptional quality and performance.\n\n#### Specifications:\n\n\t\n- Bore: 77.00 mm\n\t\n- Actual Bore Diameter: 76.96 mm\n\t\n- Displacement: 249 cm&sup3;\n\t\n- Hub Stroke: 53.60 mm\n\t\n- Clearance: 0.04 mm\n\t\n- Compression Height: 19.60 mm\n\t\n- Dome Volume: -3.30 cm&sup3;\n\t\n- Wossner Compression Ratio: OEM\n\t\n- OEM Compression Ratio: 13.40:1\n\n#### Included Components:\n\n\t\n- Piston: Wossner 8666DA\n\t\n- Lock: CW16\n\t\n- Pin: WP070\n\t\n- Ring Set: 770XAS-2","weightGrams":null,"fitments":[{"make":"SUZUKI","model":"RM-Z 250","cc":null,"notes":null,"years":"2007–2009"}],"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-07-09-rmz250-7700-wossner-8666da-suzuki-12111-10h20-0f0","buyOneNow":null,"basketWithThis":null}},"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."]}}