{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"1b171b016a1c","name":"PISTON KIT ROTAX SWM250 74.00, WOSSNER 8290DA","sku":"56-W970+00A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":144.97,"formatted":"£144.97"},"summary":"Wossner forged piston kit with a 74mm nominal bore (actual 73.93mm) designed for ROTAX SWM250 models. Engineered for two-stroke applications, this piston offers enhanced durability and thermal efficiency. Features forged construction for superior strength and reliability, optimal heat dissipation, and an elliptical shape for balanced bearing pressure. Manufactured in Germany with high precision. Specifications include a 57.50 mm stroke, 0.06 mm clearance, 34.00 mm compression height, and part numbers for lock (CW18), pin (WP033), and ring set (RSB7400 x 2).","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"74.00mm"},{"label":"Variant Id","value":"258474"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W970_2B00A_2EWO/ee25d284c669c5ce.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W970_2B00A_2EWO/ee25d284c669c5ce.jpg"],"description":"Wossner forged piston kit with a 74mm nominal bore (actual 73.93mm) designed for ROTAX SWM250 models. Engineered for two-stroke applications, this piston offers enhanced durability and thermal efficiency. Features forged construction for superior strength and reliability, optimal heat dissipation, and an elliptical shape for balanced bearing pressure. Manufactured in Germany with high precision. Specifications include a 57.50 mm stroke, 0.06 mm clearance, 34.00 mm compression height, and part numbers for lock (CW18), pin (WP033), and ring set (RSB7400 x 2).","descriptionMarkdown":"### Wossner Forged Piston Kit for ROTAX SWM250\n\nUpgrade your ROTAX SWM250 engine with this high-performance Wossner forged piston kit. Designed for two-stroke applications, this kit offers superior strength, durability, and thermal efficiency to enhance your engine's performance.\n\n### Key Features:\n\n\t\n- Forged Construction: Provides exceptional strength and reliability for demanding engine conditions.\n\t\n- Optimized Heat Dissipation: Engineered for efficient transfer of heat from the combustion chamber to the cylinder walls, reducing operating temperatures.\n\t\n- Elliptical Design: Ensures balanced bearing pressure and effective management of thrust loads for smoother operation.\n\t\n- German Precision Manufacturing: Crafted in Germany with meticulous attention to quality control for a precision fit and lasting performance.\n\n### Specifications:\n\n\t\n- Nominal Bore Size: 74mm (Actual Bore: 73.93mm)\n\t\n- Stroke: 57.50 mm\n\t\n- Clearance: 0.06 mm\n\t\n- Wossner Compression Ratio: 2 stroke\n\t\n- OEM Compression Ratio: 2 stroke\n\t\n- Compression Height: 34.00 mm\n\t\n- Lock Part Number: CW18\n\t\n- Pin Part Number: WP033\n\t\n- Ring Set Part Number: RSB7400 x 2","weightGrams":null,"fitments":[],"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-rotax-swm250-7400-wossner-8290da","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/1b171b016a1c:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/1b171b016a1c: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."]}}