{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"4d3b2ae10500","name":"PISTON KIT SET/4 CBR1000RR, WOSSNER K8742DA-4 75.00mm","sku":"56-W9884.00A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":841.02,"formatted":"£841.02"},"summary":"Wossner forged piston kit K8742DA-4 with a standard 75.00mm bore. This four-piston set is precision-crafted in Germany and offers increased compression for enhanced performance while maintaining structural integrity under high thermal and mechanical loads. Features a forged piston design for superior durability and performance, optimized for efficient heat transfer to cylinder walls, and an elliptical shape that provides a uniform bearing surface under thermal expansion, preventing localized pressure and piston collapse. Bore: 75.00mm (STD). Piston code: Wossner K8742DA-4. Clip part number: CW17. Piston pin: WP083. Ring set: 750XKS. Displacement: 998 cm&sup3;. Stroke: 56.50 mm. Clearance: 0.05 mm. Wossner compression ratio: 13.50:1. OEM compression ratio: 12.20:1. Dome volume: +0.00 cm&sup3;. Compression height: 23.50 mm. Part No. 56-W9884.00A.WO. Weight: 1340g.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"Variant Id","value":"259047"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock57993_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock57993_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock57993_2.jpg"],"description":"Wossner forged piston kit K8742DA-4 with a standard 75.00mm bore. This four-piston set is precision-crafted in Germany and offers increased compression for enhanced performance while maintaining structural integrity under high thermal and mechanical loads. Features a forged piston design for superior durability and performance, optimized for efficient heat transfer to cylinder walls, and an elliptical shape that provides a uniform bearing surface under thermal expansion, preventing localized pressure and piston collapse. Bore: 75.00mm (STD). Piston code: Wossner K8742DA-4. Clip part number: CW17. Piston pin: WP083. Ring set: 750XKS. Displacement: 998 cm&sup3;. Stroke: 56.50 mm. Clearance: 0.05 mm. Wossner compression ratio: 13.50:1. OEM compression ratio: 12.20:1. Dome volume: +0.00 cm&sup3;. Compression height: 23.50 mm. Part No. 56-W9884.00A.WO. Weight: 1340g.","descriptionMarkdown":"### Wossner Forged Piston Kit for HONDA CBR1000RR - 75.00mm Bore\n\nEnhance the performance of your HONDA CBR1000RR with this premium Wossner forged piston kit. Engineered for precision and durability, this four-piston set is designed to deliver increased compression and superior thermal management for demanding riding conditions.\n\n**Key Features:**\n\n\t\n- Forged piston construction for exceptional strength and longevity.\n\t\n- Optimised design for efficient heat transfer to cylinder walls, preventing overheating.\n\t\n- Elliptical piston shape ensures a uniform bearing surface, even under thermal expansion.\n\t\n- Prevents localised pressure and potential piston collapse for reliable operation.\n\t\n- Manufactured to exacting standards in Germany for guaranteed quality.\n\n**Specifications:**\n\n\t\n- Bore Size: 75.00mm (Standard)\n\t\n- Piston Kit Code: Wossner K8742DA-4\n\t\n- Clip Part Number: CW17\n\t\n- Piston Pin: WP083\n\t\n- Ring Set: 750XKS\n\t\n- Engine Displacement: 998 cm&sup3;\n\t\n- Stroke: 56.50 mm\n\t\n- Piston Clearance: 0.05 mm\n\t\n- Wossner Compression Ratio: 13.50:1\n\t\n- OEM Compression Ratio: 12.20:1\n\t\n- Dome Volume: +0.00 cm&sup3;\n\t\n- Compression Height: 23.50 mm","weightGrams":null,"fitments":[{"make":"HONDA","model":"CBR RR 1000","cc":null,"notes":null,"years":"2004–2007"}],"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-set4-cbr1000rr-wossner-k8742da-4-7500mm","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/4d3b2ae10500:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/4d3b2ae10500:1"}},"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."]}}