{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"8f00c6013e12","name":"HONDA CRF 250R 2004-2007 GRADE A 77.95mm STD COMPRESSION 12.9:1","sku":"V.2983A","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":259.12,"formatted":"£259.12"},"summary":"Vertex four-stroke pistons are forged from 2618 aluminum alloy, designed for modern four-stroke engines. These pistons feature a Molybdenum Disulphide MOS2 coating on the piston skirt to aid break-in and reduce wear. Vertex offers unique piston profiles and compression ratios in A, B, C, and D sizes, each varying by 0.01mm for a precise cylinder fit, maximizing power and performance while reducing blow-by and oil consumption. This piston is Grade A, 77.95mm, STD compression, 12.9:1.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/-grade-a-77.95mm-std-compression-12.9-1-3541-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/-grade-a-77.95mm-std-compression-12.9-1-3541-p.jpg"],"description":"Vertex four-stroke pistons are forged from 2618 aluminum alloy, designed for modern four-stroke engines. These pistons feature a Molybdenum Disulphide MOS2 coating on the piston skirt to aid break-in and reduce wear. Vertex offers unique piston profiles and compression ratios in A, B, C, and D sizes, each varying by 0.01mm for a precise cylinder fit, maximizing power and performance while reducing blow-by and oil consumption. This piston is Grade A, 77.95mm, STD compression, 12.9:1.","descriptionMarkdown":"### Vertex High-Performance Four-Stroke Piston\n\nUpgrade your engine with the precision engineering of a Vertex four-stroke piston. Designed for riders who demand maximum power and long-term reliability, these pistons are manufactured to meet the high-pressure requirements of modern high-performance engines.\n\nEach piston is forged from high-quality 2618 aluminum alloy, providing exceptional strength and heat resistance. To ensure a smoother break-in process and minimize friction, every piston features a specialized Molybdenum Disulphide (MOS2) coating on the skirt. This advanced coating also helps to reduce overall wear, protecting your engine components during high-revving conditions.\n\n### Key Features\n\n \n- Precision Forged: Crafted from premium 2618 aluminum alloy for superior durability under high-stress operating conditions.\n \n- Advanced MOS2 Coating: Unique Molybdenum Disulphide skirt coating reduces friction and assists with a quick, effective break-in period.\n \n- Optimized Sizing: Engineered with specific sizing to ensure a perfect fit within the cylinder, helping to maximize engine power.\n \n- Improved Efficiency: Designed to minimize blow-by and oil consumption, maintaining consistent compression throughout the life of the piston.\n \n- Standard Compression: Built to a 12.9:1 compression ratio for reliable, factory-spec performance.\n\nVertex is a trusted name in racing and off-road power sports, offering a level of manufacturing quality that enhances throttle response and engine longevity. Whether you are performing a routine rebuild or looking to restore peak power to your motorcycle, this Vertex piston is a premium choice for your next service.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/honda-crf-250r-2004-2007-grade-a-7795mm-std-compression-1291","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/8f00c6013e12:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/8f00c6013e12:1"}},"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."]}}