{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"de908e8f3a2c","name":"PISTON KIT 88-93 KR1-250 56.50, WOSSNER8043D050, BIKE REQUIRES 2 PISTONS","sku":"56-W179_050.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":4,"price":{"amount":156.56,"formatted":"£156.56"},"summary":"Wossner forged piston kit with a 56.50mm bore, designed for Kawasaki KR 250 models. Engineered for optimal combustion chamber heat transfer and uniform bearing surface under heat expansion, reducing localized pressure and piston collapse. Manufactured in Germany for durability and precision. Features include a forged piston for superior strength and design, optimized heat transfer to cylinder walls, and an elliptical design for uniform bearing surface and even thrust load distribution. Specifications: Bore: 56.50mm (+0.50mm oversize), Standard size piston (PN# 8043D050), Lock Part Number: CW16, Pin Part Number: WP036, Ring Set Part Number: RSB5650 x2, Displacement: 249 cm&sup3;, Stroke: 50.60mm, Clearance: 0.06mm, Wossner Compression Ratio: 2-stroke, OEM Compression Ratio: 2-stroke, Compression Height: 29.50mm. This bike requires 2 pistons.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"56.5mm"},{"label":"Variant Id","value":"254873"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W179_5F050_2EWO/aae265f6af2f7107.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W179_5F050_2EWO/aae265f6af2f7107.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W179_5F050_2EWO/a20e0800bc53178c.jpg"],"description":"Wossner forged piston kit with a 56.50mm bore, designed for Kawasaki KR 250 models. Engineered for optimal combustion chamber heat transfer and uniform bearing surface under heat expansion, reducing localized pressure and piston collapse. Manufactured in Germany for durability and precision. Features include a forged piston for superior strength and design, optimized heat transfer to cylinder walls, and an elliptical design for uniform bearing surface and even thrust load distribution. Specifications: Bore: 56.50mm (+0.50mm oversize), Standard size piston (PN# 8043D050), Lock Part Number: CW16, Pin Part Number: WP036, Ring Set Part Number: RSB5650 x2, Displacement: 249 cm&sup3;, Stroke: 50.60mm, Clearance: 0.06mm, Wossner Compression Ratio: 2-stroke, OEM Compression Ratio: 2-stroke, Compression Height: 29.50mm. This bike requires 2 pistons.","descriptionMarkdown":"### Wossner 56.50mm Forged Piston Kit for Kawasaki KR 250\n\nThis Wossner forged piston kit is engineered for optimal performance and durability on your Kawasaki KR 250. Manufactured in Germany, this piston features a 56.50mm bore and a design that promotes superior heat transfer and uniform bearing surface, even under extreme thermal expansion. This reduces localized pressure points and prevents piston collapse, ensuring a longer lifespan and consistent operation.\n\n**Key Features:**\n\n\t\n- Forged Piston: Offers enhanced strength and a superior design compared to cast pistons.\n\t\n- Optimized Heat Transfer: Promotes efficient heat dissipation to cylinder walls, contributing to better engine cooling.\n\t\n- Elliptical Design: Ensures a uniform bearing surface and even thrust load distribution, minimizing wear.\n\t\n- Precision Manufacturing: Made in Germany to exacting standards for reliability and performance.\n\n**Specifications:**\n\n\t\n- Bore Size: 56.50mm (0.50mm oversize)\n\t\n- Standard Size Piston Part Number: 8043D050\n\t\n- Lock Part Number: CW16\n\t\n- Pin Part Number: WP036\n\t\n- Ring Set Part Number: RSB5650 (requires 2 per bike)\n\t\n- Displacement: 249 cm&sup3;\n\t\n- Stroke: 50.60mm\n\t\n- Clearance: 0.06mm\n\t\n- Compression Height: 29.50mm\n\t\n- Wossner Compression Ratio: 2-stroke\n\t\n- OEM Compression Ratio: 2-stroke","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-88-93-kr1-250-5650-wossner8043d050-bike-requires-2-pistons","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/de908e8f3a2c:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/de908e8f3a2c: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."]}}