{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"ee2bcb0989a1","name":"PISTON KIT 13-15 SXF250 78mm A, PROX 01.6333.A","sku":"56-W954.A.PX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":188.28,"formatted":"£188.28"},"summary":"ProX Piston Kit 78.00 mm Bore 4-Stroke STD COMP 13.9:1. This kit includes piston rings, wrist pin, and circlips. ProX pistons are precision machined using state-of-the-art CNC equipment and feature a low-expansion, low-friction piston alloy utilized by major Japanese engine manufacturers. The piston is coated with an OEM-style tin coating to aid in the break-in process. Includes replacement ring set PROX 02.6333.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"78.00mm"},{"label":"Variant Id","value":"258382"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock57328_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock57328_1.jpg"],"description":"ProX Piston Kit 78.00 mm Bore 4-Stroke STD COMP 13.9:1. This kit includes piston rings, wrist pin, and circlips. ProX pistons are precision machined using state-of-the-art CNC equipment and feature a low-expansion, low-friction piston alloy utilized by major Japanese engine manufacturers. The piston is coated with an OEM-style tin coating to aid in the break-in process. Includes replacement ring set PROX 02.6333.","descriptionMarkdown":"### ProX Piston Kit - 78mm Bore, 13.9:1 Compression\n\nThis ProX Piston Kit is designed for high-performance four-stroke engines, featuring a 78.00 mm bore and a 13.9:1 standard compression ratio. Each kit comes ready for installation and includes all necessary components: piston rings, wrist pin, and circlips.\n\nProX pistons are manufactured using advanced CNC equipment, employing a low-expansion, low-friction piston alloy that is also utilized by major Japanese engine manufacturers. The pistons feature an OEM-style tin coating to aid in the crucial break-in process for your engine.\n\nThis kit is a direct replacement and is compatible with the PROX RING SET 02.6333.\n\n \n- Bore Diameter: 78.00 mm\n \n- Engine Type: 4-Stroke\n \n- Compression Ratio: 13.9:1 (Standard)\n \n- Included Components: Piston, piston rings, wrist pin, circlips\n \n- Material: Low-expansion, low-friction alloy\n \n- Coating: OEM-style tin coating for break-in assistance\n \n- Manufacturing: Precision machined on state-of-the-art CNC equipment","weightGrams":null,"fitments":[{"make":"GAS-GAS","model":"EC F 250","cc":null,"notes":null,"years":"2021–2023"},{"make":"HUSABERG","model":"FE 250","cc":null,"notes":null,"years":"2014"},{"make":"HUSQVARNA","model":"FC 250","cc":null,"notes":null,"years":"2014–2015"},{"make":"HUSQVARNA","model":"FE 250","cc":null,"notes":null,"years":"2014–2023"},{"make":"KTM","model":"250 EXC-F","cc":null,"notes":null,"years":"2014–2023"},{"make":"KTM","model":"250 FREERIDE F","cc":null,"notes":null,"years":"2018–2020"},{"make":"KTM","model":"250 FREERIDE R","cc":null,"notes":null,"years":"2018–2020"},{"make":"KTM","model":"250 SX-F","cc":null,"notes":null,"years":"2013–2015"},{"make":"KTM","model":"250 XC-F","cc":null,"notes":null,"years":"2013–2014"},{"make":"KTM","model":"250 XCF-W","cc":null,"notes":null,"years":"2013–2014"}],"collections":[{"name":"Engine","url":"https://www.2brosparts.com/api/agent/collection/GB/engine"},{"name":"Pistons & Kits","url":"https://www.2brosparts.com/api/agent/collection/GB/pistons-kits"}],"links":{"page":"https://www.2brosparts.com/products/piston-kit-13-15-sxf250-78mm-a-prox-016333a","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/ee2bcb0989a1:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/ee2bcb0989a1:1"}},"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."]}}