{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"3d939838b85a","name":"PISTON KIT SET/4 74.00mm OVERSIZE 1.00mm SUZUKI GSXR750 WOSSNER K8817D100-4","sku":"56-W9888.100.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":793.43,"formatted":"£793.43"},"summary":"Forged piston kit set of four with a standard 74.00 mm bore, engineered for high-performance 4-stroke applications to provide improved compression, efficient heat management and structural integrity under sustained thermal and mechanical load. Manufactured in Germany with an elliptical profile to promote even expansion and balanced thrust load distribution. Features forged piston construction for enhanced durability and strength, optimised for efficient heat transfer from combustion chamber to cylinder walls, and an elliptical profile for even expansion and thrust load distribution. Reduces localised pressure and minimises risk of piston collapse. Specifications: Bore 74.00 mm (STD), piston code Wößner K8817D100-4, clip CW19, piston pin WP028, ring set 740XAS, displacement 771 cm³, stroke 44.7 mm, clearance 0.06 mm, Wößner compression ratio 11.70:1, OEM compression ratio 10.90:1, dome volume +5.70 cm³, compression height 23.80 mm. Quantity: Set of 4 pistons.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"74.00mm"},{"label":"Variant Id","value":"259066"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock58012_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock58012_1.jpg"],"description":"Forged piston kit set of four with a standard 74.00 mm bore, engineered for high-performance 4-stroke applications to provide improved compression, efficient heat management and structural integrity under sustained thermal and mechanical load. Manufactured in Germany with an elliptical profile to promote even expansion and balanced thrust load distribution. Features forged piston construction for enhanced durability and strength, optimised for efficient heat transfer from combustion chamber to cylinder walls, and an elliptical profile for even expansion and thrust load distribution. Reduces localised pressure and minimises risk of piston collapse. Specifications: Bore 74.00 mm (STD), piston code Wößner K8817D100-4, clip CW19, piston pin WP028, ring set 740XAS, displacement 771 cm³, stroke 44.7 mm, clearance 0.06 mm, Wößner compression ratio 11.70:1, OEM compression ratio 10.90:1, dome volume +5.70 cm³, compression height 23.80 mm. Quantity: Set of 4 pistons.","descriptionMarkdown":"### Wossner Forged Piston Kit Set for High-Performance Engines\n\nUpgrade your engine's performance with this Wossner forged piston kit, designed as a set of four for demanding 4-stroke applications. These pistons are engineered to deliver improved compression, superior heat management, and exceptional structural integrity under extreme thermal and mechanical stress. Manufactured in Germany, each piston features an elliptical profile that promotes even expansion and balanced thrust load distribution, reducing localized pressure and minimizing the risk of piston collapse.\n\n**Key Features:**\n\n \n- Forged piston construction for maximum durability and strength\n \n- Optimized for efficient heat transfer from the combustion chamber\n \n- Elliptical profile ensures even expansion and balanced thrust load\n \n- Reduces localized pressure points and prevents piston collapse\n \n- German craftsmanship for precision and reliability\n\n**Specifications:**\n\n \n- Bore Size: 74.00 mm (Standard)\n \n- Wossner Piston Code: K8817D100-4\n \n- Clip Type: CW19\n \n- Piston Pin: WP028\n \n- Ring Set: 740XAS\n \n- Displacement: 771 cm&sup3;\n \n- Stroke: 44.7 mm\n \n- Clearance: 0.06 mm\n \n- Wossner Compression Ratio: 11.70:1\n \n- OEM Compression Ratio: 10.90:1\n \n- Dome Volume: +5.70 cm&sup3;\n \n- Compression Height: 23.80 mm\n \n- Quantity: Set of 4 pistons","weightGrams":null,"fitments":[{"make":"SUZUKI","model":"GSX R 750","cc":null,"notes":null,"years":"1988–1997"}],"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-set4-7400mm-oversize-100mm-suzuki-gsxr750-wossner-k8817d100-4","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/3d939838b85a:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/3d939838b85a: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."]}}