{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"0c0e41eab0c4","name":"PISTON KIT YAM 350 R5 65.50, WOSSNER 8221D150","sku":"56-W9898.150.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":false,"stock":0,"price":{"amount":134.45,"formatted":"£134.45"},"summary":"This Wossner piston kit features a single forged piston with a +1.50mm oversize bore (65.50mm) and an actual piston diameter of 65.43mm. Designed for two-stroke engines, its elliptical shape ensures uniform load distribution under heat expansion for enhanced durability and reduced piston failure. It is engineered to optimize combustion heat transfer and is manufactured in Germany. Key specifications include a bore size of 65.50mm, displacement of 347cm³, stroke of 54.00mm, clearance of 0.07mm, and a compression height of 36.00mm. This kit includes a Wossner piston part number 8221D150.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"65.50mm"},{"label":"Variant Id","value":"259107"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9898_2E150_2EWO/bdaafed16fb05af3.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9898_2E150_2EWO/bdaafed16fb05af3.jpg"],"description":"This Wossner piston kit features a single forged piston with a +1.50mm oversize bore (65.50mm) and an actual piston diameter of 65.43mm. Designed for two-stroke engines, its elliptical shape ensures uniform load distribution under heat expansion for enhanced durability and reduced piston failure. It is engineered to optimize combustion heat transfer and is manufactured in Germany. Key specifications include a bore size of 65.50mm, displacement of 347cm³, stroke of 54.00mm, clearance of 0.07mm, and a compression height of 36.00mm. This kit includes a Wossner piston part number 8221D150.","descriptionMarkdown":"### Wossner Piston Kit for Yamaha 350 R5 - 65.50mm Oversize\n\nEnhance the performance and durability of your Yamaha 350 R5 with this high-quality Wossner Piston Kit. Engineered for demanding two-stroke applications, this kit features a single, forged piston designed for optimal power and longevity. Manufactured in Germany to exacting standards, Wossner pistons are renowned for their precision and reliability, ensuring your engine performs at its best.\n\nThe piston boasts an elliptical design, meticulously crafted to ensure uniform load distribution under extreme heat. This innovative feature significantly reduces stress on the piston, minimizing the risk of failure and promoting consistent engine operation. It is also designed to optimize combustion heat transfer, leading to improved efficiency and power output.\n\n**Key Features:**\n\n \n- Single, high-strength forged Wossner piston\n \n- +1.50mm oversize bore size, with a 65.50mm nominal bore (actual piston diameter is 65.43mm)\n \n- Elliptical piston shape for superior thrust load distribution and thermal stability\n \n- Optimized for efficient combustion heat transfer\n \n- Precision manufactured in Germany for exceptional quality and performance\n\n**Specifications:**\n\n \n- Wossner Part Number: 8221D150\n \n- Nominal Bore Size: 65.50mm\n \n- Actual Piston Diameter: 65.43mm\n \n- Oversize: +1.50mm\n \n- Engine Displacement: 347cm&sup3;\n \n- Stroke: 54.00mm\n \n- Recommended Piston Clearance: 0.07mm\n \n- Compression Height: 36.00mm\n\n**Included Components & Cross-Reference:**\n\n \n- Piston Rings: RSB6550 (x2)\n \n- Piston Pin: WP027\n \n- Circlips: CW16","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-yam-350-r5-6550-wossner-8221d150","buyOneNow":null,"basketWithThis":null}},"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."]}}