{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"9c611b376852","name":"KTM SX-F 250 2016-2022 EXC-F 2017 - 2022 81mm 270cc BIG BORE KIT","sku":"CW.51006-K01","brand":"Cylinder Works","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":1053,"formatted":"£1,053.00"},"summary":"Big bore cylinder kit with a hand matched Vertex piston and top end gasket kit. Increases horsepower and engine displacement. Features a new cast aluminum nickel silicon carbide electroplated big bore cylinder with a diamond honed finish. Includes a forged 2618 aluminum alloy Vertex big bore piston with unique profiles and compression ratios. Gasket kit contains head, base, exhaust gaskets, and O-rings. Compression ratio 14.4:1. Cylinder diameter 81 mm. Displacement 270 cc. 4-cycle engine type.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-sx-f-250-2016-2022-exc-f-2017-2022-81mm-270cc-big-bore-kit-11414-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-sx-f-250-2016-2022-exc-f-2017-2022-81mm-270cc-big-bore-kit-11414-p.jpg"],"description":"Big bore cylinder kit with a hand matched Vertex piston and top end gasket kit. Increases horsepower and engine displacement. Features a new cast aluminum nickel silicon carbide electroplated big bore cylinder with a diamond honed finish. Includes a forged 2618 aluminum alloy Vertex big bore piston with unique profiles and compression ratios. Gasket kit contains head, base, exhaust gaskets, and O-rings. Compression ratio 14.4:1. Cylinder diameter 81 mm. Displacement 270 cc. 4-cycle engine type.","descriptionMarkdown":"### Cylinder Works 270cc Big Bore Cylinder Kit\n\nUpgrade your engine performance with the Cylinder Works 270cc Big Bore Kit. Designed to increase engine displacement and boost overall horsepower, this kit provides a high performance solution for riders looking to maximize their machine's potential. This complete top end rebuild solution includes a precision engineered cylinder, a hand matched forged piston, and a comprehensive gasket set.\n\n### Key Features\n\n \n- Increased Displacement: Increases engine size to 270cc for a significant power gain and an exhilarating riding experience.\n \n- Advanced Cylinder Technology: Features a cast aluminum cylinder with a Nickel Silicon Carbide (NSC) electroplated surface. This composite provides exceptional wear resistance and superior oil retention.\n \n- Precision Machined: Each cylinder is diamond honed to exact specifications to ensure optimal ring seal and engine longevity.\n \n- Forged Vertex Piston: Includes a Vertex big bore piston forged from high quality 2618 aluminum alloy for maximum strength and durability under high compression.\n \n- Hand Matched Components: Every piston is precision fitted to its corresponding cylinder at the factory to guarantee peak performance and reduced blow by.\n \n- Complete Gasket Kit: Comes with all necessary head, base, and exhaust gaskets along with required O-rings for a seamless and reliable top end installation.\n\n### Technical Specifications\n\n \n- Compression Ratio: 14.4:1\n \n- Cylinder Diameter: 81mm\n \n- Displacement: 270cc\n \n- Engine Type: 4-Cycle\n\nWhether you are looking to revitalize a tired engine or simply want more power on the track or trail, the Cylinder Works Big Bore Kit offers a reliable, race proven method to enhance your motorcycle performance. Each component is manufactured to exceed OEM standards, ensuring that you get the quality and reliability you expect from your engine parts.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/ktm-sx-f-250-2016-2022-exc-f-2017-2022-81mm-270cc-big-bore-kit","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/9c611b376852:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/9c611b376852:1"}},"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."]}}