{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"71caeee3760d","name":"HONDA CRF 250R 2016 - 2017 GRADE B 76.77mm STANDARD COMPRESSION 13.8:1","sku":"V.4119B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":4,"price":{"amount":259.12,"formatted":"£259.12"},"summary":"Vertex four-stroke pistons are forged from high-quality 2618 aluminum alloy, designed for the demands of modern four-stroke engines. Each piston features a Molybdenum Disulphide (MOS2) coating on the piston skirt to assist with break-in and reduce wear. Vertex offers unique piston profiles and compression ratios in A, B, C, and D sizes, with variations of 0.01mm to ensure a precise fit in the cylinder for optimal power, performance, reduced blow-by, and oil consumption. This specific piston is Grade B, with a standard compression of 13.8:1 and a bore size of 76.77mm.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-crf-250r-2016-2017-grade-b-76.77mm-standard-compression-13.8-1-6480-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-crf-250r-2016-2017-grade-b-76.77mm-standard-compression-13.8-1-6480-p.jpg"],"description":"Vertex four-stroke pistons are forged from high-quality 2618 aluminum alloy, designed for the demands of modern four-stroke engines. Each piston features a Molybdenum Disulphide (MOS2) coating on the piston skirt to assist with break-in and reduce wear. Vertex offers unique piston profiles and compression ratios in A, B, C, and D sizes, with variations of 0.01mm to ensure a precise fit in the cylinder for optimal power, performance, reduced blow-by, and oil consumption. This specific piston is Grade B, with a standard compression of 13.8:1 and a bore size of 76.77mm.","descriptionMarkdown":"### Vertex High-Performance Four-Stroke Piston\n\nUpgrade your engine reliability and performance with the Vertex Grade B forged piston. Engineered for precision and endurance, this piston is designed to meet the demanding requirements of modern high-output four-stroke engines, ensuring consistent power delivery and engine longevity.\n\n### Advanced Material and Design\n\nVertex pistons are manufactured from premium 2618 aluminum alloy, a material specifically chosen for its ability to withstand the intense heat and mechanical pressures found within high-performance motors. The forged construction provides superior structural integrity compared to cast alternatives, making it an ideal choice for race and high-performance applications.\n\n### Key Features\n\n \n- Precision Sizing: This Grade B piston is engineered with precise tolerances to provide an optimal fit against the cylinder wall. Proper sizing helps maximize compression, reduce oil consumption, and minimize blow-by.\n \n- Molybdenum Disulphide Coating: Every piston features a specialized MOS2 skirt coating. This advanced treatment assists during the engine break-in period and significantly reduces friction and wear for smoother operation.\n \n- Standard Compression Ratio: Built to a 13.8:1 compression ratio, this piston is optimized to deliver peak performance while maintaining the engine characteristics required for competitive riding.\n \n- Engineered for Durability: The robust forged alloy construction ensures your engine remains reliable under extreme riding conditions, helping you maintain consistent performance throughout your engine’s service life.\n\nWhen rebuilding your top end, choosing a Vertex piston ensures that your cylinder and piston assembly operate in perfect harmony. By matching your cylinder to the correct Grade B sizing, you can restore your engine to factory-level performance and efficiency.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/honda-crf-250r-2016-2017-grade-b-7677mm-standard-compression-1381","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/71caeee3760d:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/71caeee3760d: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. 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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."]}}