{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"a2a6732feaca","name":"PISTON KIT 74.00 OVERSIZE 2.00mm SET/4 SUZUKI GSX1100 WOSSNER K8838D200-4","sku":"56-W9889.200.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 74.00 mm 2.00 mm oversize bore. Manufactured in Germany, this kit features a forged piston design for exceptional durability and performance. It includes optimised combustion chamber heat transfer to cylinder walls, an elliptical shape for even expansion and load distribution, and prevents piston collapse by minimising localised thermal stress. Specifications include a 74.00 mm 2.00 mm oversize bore, 1134 cm&sup3; displacement, 44.7 mm stroke, 0.06 mm clearance, 11.70:1 compression ratio (W&ouml;ssner), 10.90:1 OEM compression ratio reference, +5.70 cm&sup3; dome volume, and 23.80 mm compression height. This set contains four pistons. Cross-reference OEM part numbers include W&ouml;ssner piston code K8838D200-4, part number 56-W9889.200.WO, clip CW18, piston pin WP054, and ring set 740XDS.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"74.00mm"},{"label":"Variant Id","value":"259068"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock58014_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock58014_1.jpg"],"description":"Forged piston kit set of four with a 74.00 mm 2.00 mm oversize bore. Manufactured in Germany, this kit features a forged piston design for exceptional durability and performance. It includes optimised combustion chamber heat transfer to cylinder walls, an elliptical shape for even expansion and load distribution, and prevents piston collapse by minimising localised thermal stress. Specifications include a 74.00 mm 2.00 mm oversize bore, 1134 cm&sup3; displacement, 44.7 mm stroke, 0.06 mm clearance, 11.70:1 compression ratio (W&ouml;ssner), 10.90:1 OEM compression ratio reference, +5.70 cm&sup3; dome volume, and 23.80 mm compression height. This set contains four pistons. Cross-reference OEM part numbers include W&ouml;ssner piston code K8838D200-4, part number 56-W9889.200.WO, clip CW18, piston pin WP054, and ring set 740XDS.","descriptionMarkdown":"### Wossner Forged Piston Kit - 74.00mm Oversize\n\n Enhance your engine's performance with this Wossner Forged Piston Kit. This set of four pistons features a 74.00 mm oversize bore (2.00 mm increase) designed to boost displacement and compression. Engineered for high thermal and mechanical loads, these pistons maintain structural integrity and stable operation. Their design promotes efficient heat transfer and balanced expansion for consistent power delivery. Manufactured in Germany, they are built to the highest standards for durability and performance.\n\n#### Key Features\n\n \n- Forged Piston Design: Offers exceptional durability and superior performance compared to cast pistons.\n \n- Optimised Heat Transfer: Efficiently transfers heat from the combustion chamber to the cylinder walls, aiding in temperature regulation.\n \n- Elliptical Piston Shape: Ensures even expansion and balanced load distribution across the piston surface.\n \n- Minimised Thermal Stress: Prevents piston collapse by reducing localised thermal stress for greater longevity.\n \n- German Manufacturing: Precision engineered and manufactured in Germany for quality you can trust.\n\n#### Specifications\n\n \n- Bore Size: 74.00 mm (+2.00 mm oversize)\n \n- Displacement: 1134 cm&sup3;\n \n- Stroke: 44.7 mm\n \n- Clearance: 0.06 mm\n \n- Compression Ratio (Wössner): 11.70:1\n \n- OEM Compression Ratio (reference): 10.90:1\n \n- Dome Volume: +5.70 cm&sup3;\n \n- Compression Height: 23.80 mm\n \n- Quantity: Set of four pistons\n\n#### Included Components\n\n \n- Piston Set: Four forged pistons\n \n- Piston Rings: Ring set 740XDS\n \n- Piston Pins: Piston pin WP054\n \n- Circlips: Clip CW18\n\n **Part Number:** \n\n **Wössner Piston Code:** K8838D200-4","weightGrams":null,"fitments":[{"make":"SUZUKI","model":"GSX R 1100","cc":null,"notes":null,"years":"1980–1983"}],"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-7400-oversize-200mm-set4-suzuki-gsx1100-wossner-k8838d200-4","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/a2a6732feaca:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/a2a6732feaca: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."]}}