{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"d30ec76e10b9","name":"Husqvarna CR/WR 250 1998-2013 Grade B 66.35mm Twin Ring Piston","sku":"V.2601B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":false,"stock":0,"price":{"amount":218.62,"formatted":"£218.62"},"summary":"Vertex two-stroke pistons are gravity cast from an aluminum alloy with 18% silicon content. Silicon decreases thermal expansion, allowing for tighter tolerances and improved power and performance. Silicon also provides better wear characteristics and prolongs piston life by reducing wear on the piston skirt. This is a Grade B, 66.35mm twin ring piston.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/husqvarna-cr-wr-250-1998-2013-grade-b-66.35mm-twin-ring-piston-1359-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/husqvarna-cr-wr-250-1998-2013-grade-b-66.35mm-twin-ring-piston-1359-p.jpg"],"description":"Vertex two-stroke pistons are gravity cast from an aluminum alloy with 18% silicon content. Silicon decreases thermal expansion, allowing for tighter tolerances and improved power and performance. Silicon also provides better wear characteristics and prolongs piston life by reducing wear on the piston skirt. This is a Grade B, 66.35mm twin ring piston.","descriptionMarkdown":"### High Performance Vertex Two-Stroke Replacement Piston\n\nThe Vertex Grade B Twin Ring Piston is engineered specifically for high-performance two-stroke engines. Manufactured using a precision gravity-casting process, this piston utilizes an aluminum alloy with an 18% silicon content, offering an ideal balance of durability and thermal efficiency for demanding engine environments.\n\n### Advanced Silicon Alloy Construction\n\nThe integration of high silicon content provides significant mechanical advantages for two-stroke operation:\n\n- Reduced Thermal Expansion: By minimizing changes to piston geometry at high operating temperatures, the piston maintains tighter tolerances compared to forged alternatives. This results in superior power output, enhanced performance, and a reduction in mechanical noise or rattling.\n\n- Extended Component Life: The specific alloy composition enhances wear resistance, effectively prolonging the lifespan of both the piston and the cylinder bore by reducing friction and skirt wear.\n\n### Key Features\n\n- Designed for optimal performance in two-stroke applications\n\n- Gravity-cast aluminum alloy with 18% silicon content\n\n- Twin ring design for improved sealing and compression\n\n- Engineered to maintain tight tolerances during peak operation\n\n- Resistant to high-heat fatigue and skirt wear","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/husqvarna-crwr-250-1998-2013-grade-b-6635mm-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."]}}