{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"f8d7256e86b0","name":"Husqvarna CR/WR 250 1998-2013 Grade D 66.37mm Twin Ring Piston","sku":"V.2601D","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":false,"stock":0,"price":{"amount":218.62,"formatted":"£218.62"},"summary":"Vertex Two-stroke Piston Grade D 66.37mm Twin Ring. Gravity cast from an aluminum alloy with 18% silicon content. Silicon decreases thermal expansion, allowing for tighter tolerances for better power and performance and reducing rattling or breaking. Silicon also provides better wear characteristics and prolongs piston life by decreasing skirt wear.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/husqvarna-cr-wr-250-1998-2013-grade-d-66.37mm-twin-ring-piston-1361-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/husqvarna-cr-wr-250-1998-2013-grade-d-66.37mm-twin-ring-piston-1361-p.jpg"],"description":"Vertex Two-stroke Piston Grade D 66.37mm Twin Ring. Gravity cast from an aluminum alloy with 18% silicon content. Silicon decreases thermal expansion, allowing for tighter tolerances for better power and performance and reducing rattling or breaking. Silicon also provides better wear characteristics and prolongs piston life by decreasing skirt wear.","descriptionMarkdown":"### Vertex Grade D 66.37mm Twin Ring Piston\n\nThe Vertex Grade D twin ring piston is a high-performance replacement component specifically engineered for two-stroke engines. Designed to meet the demanding requirements of off-road competition, this piston offers the ideal balance of durability, power, and precise tolerances to keep your engine running at its peak.\n\nVertex pistons are gravity cast from a premium aluminum alloy featuring an 18 percent silicon content. This advanced composition is vital for two-stroke engine efficiency, providing superior thermal stability and wear resistance throughout the engine's power band.\n\n### Key Features\n\n \n- High Silicon Content: The 18 percent silicon alloy minimizes thermal expansion, allowing for tighter clearances between the piston and the cylinder wall. This ensures better compression and enhanced power delivery.\n \n- Precision Engineering: By maintaining consistent geometry even at operating temperatures, these pistons reduce the risk of mechanical rattling and structural fatigue.\n \n- Extended Service Life: The specific material properties of the alloy offer excellent wear characteristics, significantly prolonging the lifespan of the piston skirt and the overall top-end assembly.\n \n- Twin Ring Design: Engineered to provide an optimal seal within the cylinder, the twin ring configuration promotes improved heat transfer and consistent combustion pressure.\n\nWhether you are performing a routine top-end rebuild or restoring your engine to factory performance levels, Vertex pistons provide the reliability and consistency required for both casual riding and competitive racing.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/husqvarna-crwr-250-1998-2013-grade-d-6637mm-twin-ring-piston","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."]}}