{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"ca3891c6d79b","name":"PISTON KIT 99-18 YZ250 66.40 C, WOSSNER 8216DC YAMAHA MX, 2 RING PISTON","sku":"56-W742.C.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":156.56,"formatted":"£156.56"},"summary":"Wossner 2-ring piston kit with a 66.42 mm bore size and 66.37 mm actual piston size. This piston kit features a forged 2-ring design for enhanced durability and reliability. It is designed for optimal heat transfer and has an elliptical profile to distribute load evenly, reducing the risk of piston collapse. The kit includes the piston (PN# 8216DC), lock (PN# CW18), pin (PN# WP033), ring set (PN# RSB6640 x 2), and rod (PN# P2028). Specifications include a 249 cm³ display, 54.10 mm stroke, 0.06 mm clearance, 2-stroke compression ratio, and 28.00 mm compression height. Manufactured in Germany.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"66.40mm"},{"label":"Variant Id","value":"257598"}],"image":"https://www.oro2u.com/media/catalog/product/5/6/56-w742-a-wo.jpg","images":["https://www.oro2u.com/media/catalog/product/5/6/56-w742-a-wo.jpg"],"description":"Wossner 2-ring piston kit with a 66.42 mm bore size and 66.37 mm actual piston size. This piston kit features a forged 2-ring design for enhanced durability and reliability. It is designed for optimal heat transfer and has an elliptical profile to distribute load evenly, reducing the risk of piston collapse. The kit includes the piston (PN# 8216DC), lock (PN# CW18), pin (PN# WP033), ring set (PN# RSB6640 x 2), and rod (PN# P2028). Specifications include a 249 cm³ display, 54.10 mm stroke, 0.06 mm clearance, 2-stroke compression ratio, and 28.00 mm compression height. Manufactured in Germany.","descriptionMarkdown":"### Wossner Piston Kit for Yamaha YZ250 (1999-2018)\n\nUpgrade your Yamaha YZ250's performance with this high-quality Wossner piston kit. Engineered for demanding two-stroke applications, this kit provides exceptional durability, efficient heat management, and reliable operation.\n\n**Key Features:**\n\n\t\n- Forged 2-ring piston design ensures superior strength and longevity.\n\t\n- Optimised for effective heat transfer from the combustion chamber to the cylinder wall, maintaining optimal operating temperatures.\n\t\n- Elliptical piston profile promotes even load distribution, reducing localised pressure and the risk of piston collapse.\n\t\n- Precision engineered and manufactured in Germany for exacting standards.\n\n**Specifications:**\n\n\t\n- Bore Size: 66.42 mm\n\t\n- Actual Piston Size: 66.37 mm\n\t\n- Displacement (cm³): 249\n\t\n- Stroke (mm): 54.10\n\t\n- Clearance (mm): 0.06\n\t\n- Compression Height (mm): 28.00\n\n**Included Components:**\n\n\t\n- Wossner Piston (2-ring)\n\t\n- Lock\n\t\n- Pin\n\t\n- Ring Set\n\t\n- Rod","weightGrams":null,"fitments":[{"make":"FANTIC","model":"XX 250","cc":null,"notes":null,"years":"2022–2025"},{"make":"SUZUKI","model":"RM 250","cc":null,"notes":null,"years":"2003–2012"},{"make":"YAMAHA","model":"YZ 250","cc":null,"notes":null,"years":"1999–2025"},{"make":"YAMAHA","model":"YZ 250X","cc":null,"notes":null,"years":"2016–2025"}],"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-99-18-yz250-6640-c-wossner-8216dc-yamaha-mx-2-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/ca3891c6d79b:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/ca3891c6d79b: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."]}}