{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"15815fa3a0ad","name":"PISTON KIT 80-82 YZ250 71.00, FORGED WOSSNER 8180D100","sku":"56-W452+100.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":8,"price":{"amount":159.11,"formatted":"£159.11"},"summary":"Wossner forged piston kit 8180D100 for Yamaha YZ250 and IT250 models. Bore size is 71.00 mm (+1.00 mm oversize) with an actual bore of 70.94 mm. Stroke is 64.00 mm, clearance is 0.06 mm, and compression height is 33.00 mm. Compression ratio is 2-stroke. Displacement is 246 cm³. Manufactured in Germany, this piston offers superior strength and heat transfer efficiency. The elliptical design ensures even load distribution, reducing localized pressure and preventing piston collapse. Features include forged construction for enhanced durability and strength, optimized heat transfer for improved performance, and an elliptical design for uniform bearing surface and reduced wear. Designed for 2-stroke engines. Wossner part number 8180D100. Includes lock P/N CW18, pin P/N WP033, ring set P/N RSB7100 x 2, piston kit standard 5X5-11630-00-00, piston standard 5X5-11631-00-94, piston ring set standard 5X5-11601-00-00, piston pin 214-11633-00-00, and circlip 93450-19052-00. Weight is 342 grams.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"71mm"},{"label":"Variant Id","value":"255686"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W452_2B100_2EWO/d32f7402d7849b0c.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W452_2B100_2EWO/d32f7402d7849b0c.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W452_2B100_2EWO/af2ea4cc4568eef7.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W452_2B100_2EWO/7999846d5849593e.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W452_2B100_2EWO/32bf4648e4ccf11e.jpg"],"description":"Wossner forged piston kit 8180D100 for Yamaha YZ250 and IT250 models. Bore size is 71.00 mm (+1.00 mm oversize) with an actual bore of 70.94 mm. Stroke is 64.00 mm, clearance is 0.06 mm, and compression height is 33.00 mm. Compression ratio is 2-stroke. Displacement is 246 cm³. Manufactured in Germany, this piston offers superior strength and heat transfer efficiency. The elliptical design ensures even load distribution, reducing localized pressure and preventing piston collapse. Features include forged construction for enhanced durability and strength, optimized heat transfer for improved performance, and an elliptical design for uniform bearing surface and reduced wear. Designed for 2-stroke engines. Wossner part number 8180D100. Includes lock P/N CW18, pin P/N WP033, ring set P/N RSB7100 x 2, piston kit standard 5X5-11630-00-00, piston standard 5X5-11631-00-94, piston ring set standard 5X5-11601-00-00, piston pin 214-11633-00-00, and circlip 93450-19052-00. Weight is 342 grams.","descriptionMarkdown":"### Wossner Forged Piston Kit for Yamaha YZ250/IT250\n\nUpgrade your Yamaha YZ250 or IT250 with this high-performance Wossner forged piston kit. Engineered in Germany, this kit delivers exceptional strength and superior heat transfer capabilities, essential for demanding 2-stroke engines.\n\nThe advanced elliptical design of this piston ensures a more uniform bearing surface, effectively distributing load and minimizing localized pressure. This reduces wear and helps prevent piston collapse under high stress conditions, leading to improved engine longevity and performance.\n\n**Key Features:**\n\n \n- Forged Construction: Provides enhanced durability and superior strength compared to cast pistons.\n \n- Optimized Heat Transfer: Promotes efficient heat dissipation for improved engine performance and reliability.\n \n- Elliptical Design: Creates a uniform bearing surface, reducing wear and preventing piston collapse.\n \n- 2-Stroke Specific: Designed to meet the unique demands of 2-stroke engines.\n \n- Made in Germany: Guarantees high-quality manufacturing standards.\n\n**Specifications:**\n\n \n- Bore Size: 71.00 mm (+1.00 mm oversize)\n \n- Actual Bore: 70.94 mm\n \n- Stroke: 64.00 mm\n \n- Clearance: 0.06 mm\n \n- Compression Height: 33.00 mm\n \n- Displacement: 246 cm&sup3;\n \n- Includes Lock P/N: CW18\n \n- Includes Pin P/N: WP033\n \n- Includes Ring Set P/N: RSB7100 (x2)","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-80-82-yz250-7100-forged-wossner-8180d100","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/15815fa3a0ad:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/15815fa3a0ad: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."]}}