{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"6db8d630ca61","name":"HONDA CRF 250R 2004 - 2009 CRF 250X 2004 - 2017 BIG BORE 81mm 270cc 13.0:1","sku":"V.3535","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":259.12,"formatted":"£259.12"},"summary":"Vertex four-stroke pistons are forged from high-quality 2618 aluminum alloy, suited for modern four-stroke engines. The piston skirt features a Molybdenum Disulphide (MOS2) coating for break-in and reduced wear. Vertex pistons offer unique profiles and compression ratios in A, B, C, and D sizes, with 0.01mm variations for precise cylinder fitment, maximizing power and performance while reducing blow-by and oil consumption. This is a big bore 81mm 270cc piston with a 13.0:1 compression ratio.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-crf-250r-2004-2009-crf-250x-2004-2017-big-bore-81mm-270cc-13.0-1-3561-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-crf-250r-2004-2009-crf-250x-2004-2017-big-bore-81mm-270cc-13.0-1-3561-p.jpg"],"description":"Vertex four-stroke pistons are forged from high-quality 2618 aluminum alloy, suited for modern four-stroke engines. The piston skirt features a Molybdenum Disulphide (MOS2) coating for break-in and reduced wear. Vertex pistons offer unique profiles and compression ratios in A, B, C, and D sizes, with 0.01mm variations for precise cylinder fitment, maximizing power and performance while reducing blow-by and oil consumption. This is a big bore 81mm 270cc piston with a 13.0:1 compression ratio.","descriptionMarkdown":"### Vertex Big Bore Piston Kit 81mm 270cc\n\nEnhance the performance of your engine with this high-quality Vertex Big Bore Piston Kit. Designed for riders seeking increased displacement and reliable power, this 81mm piston kit converts your engine to a 270cc capacity with a 13.0:1 compression ratio.\n\nVertex four-stroke pistons are engineered to meet the demands of modern high-performance engines. Each piston is forged from premium 2618 aluminum alloy, providing the structural integrity required to withstand extreme internal pressures and high-revving environments.\n\n### Key Features\n\n \n- Forged Construction: Precision forged from 2618 aluminum alloy for superior durability and strength.\n \n- MOS2 Skirt Coating: Features a unique Molybdenum Disulphide coating to assist in the break-in process and significantly reduce friction and wear.\n \n- Increased Displacement: Designed as a big bore solution to increase engine capacity to 270cc.\n \n- Optimized Performance: Engineered to maximize power output while effectively reducing blow-by and oil consumption.\n \n- Precision Sizing: Vertex offers specific piston profiles to ensure a perfect fit within your cylinder, optimizing compression and engine efficiency.\n\nWhether you are rebuilding your engine or looking for a competitive edge on the track, this Vertex piston kit delivers the reliability and power gains expected from a world-class manufacturer.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/honda-crf-250r-2004-2009-crf-250x-2004-2017-big-bore-81mm-270cc-1301","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/6db8d630ca61:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/6db8d630ca61:1"}},"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."]}}