{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"299cb01ca1fa","name":"HONDA CRF 250R 2018-2019 GRADE C 81.98mm BIG BORE PISTON 13.9:1","sku":"V.4348C","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":291.52,"formatted":"£291.52"},"summary":"Forged piston with T-bridge inspired by F1. Special racing profile to maximize compression without loss of reliability. Vertex four-stroke pistons are forged from high-quality 2618 aluminum alloy, suitable for modern four-stroke engines. Utilizes a unique Molybdenum Disulphide MOS2 coating on the piston skirt to aid in break-in and reduce wear. Piston profiles and compression ratios offered in A, B, C, and D sizes, varying by 0.01mm, allow for perfect sizing to the cylinder for maximizing power and performance while reducing blow-by and oil consumption. 81.98mm bore size, 13.9:1 compression ratio. Grade C.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-crf-250r-2018-2019-grade-c-78.98mm-gp-racers-choice-10449-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-crf-250r-2018-2019-grade-c-78.98mm-gp-racers-choice-10449-p.jpg"],"description":"Forged piston with T-bridge inspired by F1. Special racing profile to maximize compression without loss of reliability. Vertex four-stroke pistons are forged from high-quality 2618 aluminum alloy, suitable for modern four-stroke engines. Utilizes a unique Molybdenum Disulphide MOS2 coating on the piston skirt to aid in break-in and reduce wear. Piston profiles and compression ratios offered in A, B, C, and D sizes, varying by 0.01mm, allow for perfect sizing to the cylinder for maximizing power and performance while reducing blow-by and oil consumption. 81.98mm bore size, 13.9:1 compression ratio. Grade C.","descriptionMarkdown":"### Vertex GP Racers Choice High-Compression Big Bore Piston\n\nUpgrade your engine performance with the Vertex GP Racers Choice forged piston. Engineered for riders who demand power and reliability, this high-performance component features a unique T-bridge design inspired by Formula 1 technology. This advanced geometry provides a specialized racing profile that maximizes compression ratios without compromising the longevity of your engine.\n\nVertex four-stroke pistons are forged from premium 2618 aluminum alloy, ensuring they can withstand the extreme pressures and high-stress environments of modern racing engines. Every piston is finished with a Molybdenum Disulphide (MOS2) coating on the skirt, which significantly reduces friction, assists in the break-in process, and minimizes overall engine wear.\n\n### Key Features\n\n \n- GP Racers Choice Technology: Advanced T-bridge architecture for superior strength and weight reduction.\n \n- Premium Material: Constructed from 2618 aluminum alloy for exceptional durability under high-pressure conditions.\n \n- MOS2 Skirt Coating: Specialized Molybdenum Disulphide coating reduces drag and protects the cylinder bore during the critical break-in phase.\n \n- Optimized Performance: Engineered to maximize power output while reducing blow-by and oil consumption.\n \n- Precision Sizing: Designed with meticulous attention to detail to ensure a perfect fit, providing maximum performance efficiency.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/honda-crf-250r-2018-2019-grade-c-8198mm-big-bore-piston-1391","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/299cb01ca1fa:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/299cb01ca1fa: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."]}}