{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"2eccbc385daf","name":"PISTON KIT 04-07 CRF250R 78 HC, PROX 01.1339.C HI COMP 13.5:1","sku":"56-W4829.C.PXHC","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":202.19,"formatted":"£202.19"},"summary":"78.00mm High Compression 13.5:1 Piston Kit. ProX pistons are precision machined on state-of-the-art CNC equipment using the same low-expansion, low-friction piston alloy used by major Japanese engine manufacturers. This kit is a first-class solution to replace the original piston. Many ProX pistons come with an OEM style Tin coating to assist in the wear-in process and a new skirt coating that helps reduce friction after wear-in, increasing performance. PROX RING SET 02.1335. SKU: 56-W4829.C.PXHC. Manufacturer: Pro-X Racing.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"78mm"},{"label":"Variant Id","value":"256202"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4829_2EC_2EPXHC/692b79c78005980f.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4829_2EC_2EPXHC/692b79c78005980f.jpg"],"description":"78.00mm High Compression 13.5:1 Piston Kit. ProX pistons are precision machined on state-of-the-art CNC equipment using the same low-expansion, low-friction piston alloy used by major Japanese engine manufacturers. This kit is a first-class solution to replace the original piston. Many ProX pistons come with an OEM style Tin coating to assist in the wear-in process and a new skirt coating that helps reduce friction after wear-in, increasing performance. PROX RING SET 02.1335. SKU: 56-W4829.C.PXHC. Manufacturer: Pro-X Racing.","descriptionMarkdown":"### ProX High Compression Piston Kit\n\nThis ProX Piston Kit is designed for high-performance applications, offering a significant upgrade over standard pistons. Precision-machined using state-of-the-art CNC equipment, this kit utilizes a low-expansion, low-friction piston alloy, the same type favored by major Japanese engine manufacturers. It represents a premium solution for replacing original pistons in a variety of powersports vehicles.\n\n**Key Features:**\n\n \n- High Compression Ratio: 13.5:1 for increased power and performance.\n \n- Optimized Piston Size: 78.00mm bore diameter.\n \n- Advanced Coating: Features an OEM-style Tin coating to aid the initial wear-in process. A specialized skirt coating further reduces friction after break-in, enhancing overall performance.\n \n- Durable Construction: Made from a premium alloy chosen for its low expansion and friction properties.\n \n- Complete Kit: Includes all necessary components for a professional rebuild.\n \n- Replacement Parts Available: Compatible with ProX Ring Set 02.1335.","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRF 250R","cc":null,"notes":null,"years":"2004–2009"},{"make":"HONDA","model":"CRF 250X","cc":null,"notes":null,"years":"2004–2017"}],"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-04-07-crf250r-78-hc-prox-011339c-hi-comp-1351","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/2eccbc385daf:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/2eccbc385daf: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."]}}