{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"e09eb6869192","name":"YAMAHA YZF 250 2016-2018 GRADE B 76.95mm STANDARD COMPRESSION 13.5:1","sku":"V.4109B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":4,"price":{"amount":161.92,"formatted":"£161.92"},"summary":"Vertex pistons are forged from 2618 aluminum alloy, suitable for modern four-stroke engines. The piston skirt features a Molybdenum Disulphide (MOS2) coating to aid break-in and reduce wear. Vertex offers unique piston profiles and compression ratios in sizes A, B, C, and D, differing by 0.01mm, allowing for a precise fit to the cylinder to maximize power and performance while reducing blow-by and oil consumption. This specific piston is Grade B, 76.95mm standard compression, 13.5:1.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yzf-250-2016-2018-grade-b-76.95mm-standard-compression-13.5-1-6520-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yzf-250-2016-2018-grade-b-76.95mm-standard-compression-13.5-1-6520-p.jpg"],"description":"Vertex pistons are forged from 2618 aluminum alloy, suitable for modern four-stroke engines. The piston skirt features a Molybdenum Disulphide (MOS2) coating to aid break-in and reduce wear. Vertex offers unique piston profiles and compression ratios in sizes A, B, C, and D, differing by 0.01mm, allowing for a precise fit to the cylinder to maximize power and performance while reducing blow-by and oil consumption. This specific piston is Grade B, 76.95mm standard compression, 13.5:1.","descriptionMarkdown":"### Vertex High-Performance Four-Stroke Piston\n\nUpgrade your engine's performance with the Vertex four-stroke piston. Engineered for riders who demand reliability and power, this piston is forged from premium 2618 aluminum alloy. This high-strength material is specifically chosen to withstand the intense pressures and demanding conditions found in modern high-revving four-stroke engines.\n\nTo ensure optimal longevity and a smooth break-in period, every Vertex piston features a specialized Molybdenum Disulphide (MOS2) coating on the skirt. This advanced coating significantly reduces friction and wear, protecting your engine components during operation.\n\n### Key Features\n\n \n- Precision Engineering: Manufactured from high-quality 2618 aluminum alloy for superior durability.\n \n- Advanced Coating: Molybdenum Disulphide (MOS2) skirt coating minimizes friction and aids in engine break-in.\n \n- Optimized Performance: Designed to provide a standard compression ratio of 13.5:1 for consistent power delivery.\n \n- Exact Sizing: Grade B piston measuring 76.95mm, engineered to maintain perfect tolerances within the cylinder.\n \n- Efficiency: Helps reduce blow-by and oil consumption, ensuring your engine runs cleaner and more efficiently.\n\nVertex pistons are designed to maintain internal tolerances, allowing for a perfect fit that maximizes compression and overall performance. Whether you are replacing worn components or performing a top-end rebuild, choosing a Vertex forged piston ensures your machine operates at its peak potential.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yzf-250-2016-2018-grade-b-7695mm-standard-compression-1351","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/e09eb6869192:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/e09eb6869192:1"}},"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."]}}