{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"f8330631a543","name":"PISTON KIT 04-07 CRF250R 78.00, PROX 01.1338.A 04-17 CRF250X","sku":"56-W4829.A.PX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":188.28,"formatted":"£188.28"},"summary":"PISTON KIT 78.00mm STD COMPRESSION 12.9:1. ProX pistons are precision machined on the latest CNC equipment using the same low-expansion, low-friction piston alloy used by major Japanese engine manufacturers. ProX Piston Kits are a first-class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, or Personal Watercraft. Most ProX pistons come with an OEM-style Tin coating to assist the wear-in process. A new skirt coating has been developed that assists the wear-in process and reduces friction after wear-in. The black coating increases performance. Replacement parts include PROX RING SET 02.1335, PROX PISTON PIN 04.1641.5, and PROX CLIPS 05.1612. Part number 01.1338.A. 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":"256195"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4829_2EA_2EPX/2f0245e87f646f4e.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4829_2EA_2EPX/2f0245e87f646f4e.jpg"],"description":"PISTON KIT 78.00mm STD COMPRESSION 12.9:1. ProX pistons are precision machined on the latest CNC equipment using the same low-expansion, low-friction piston alloy used by major Japanese engine manufacturers. ProX Piston Kits are a first-class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, or Personal Watercraft. Most ProX pistons come with an OEM-style Tin coating to assist the wear-in process. A new skirt coating has been developed that assists the wear-in process and reduces friction after wear-in. The black coating increases performance. Replacement parts include PROX RING SET 02.1335, PROX PISTON PIN 04.1641.5, and PROX CLIPS 05.1612. Part number 01.1338.A. Manufacturer: Pro-X Racing.","descriptionMarkdown":"### ProX Piston Kit - Standard Compression\n\nThis ProX Piston Kit is engineered for high-performance replacement of original pistons. Precision-machined using advanced CNC equipment, it features a low-expansion, low-friction piston alloy identical to that used by major Japanese engine manufacturers.\n\n**Key Features:**\n\n \n- Standard Compression Piston Kit\n \n- Bore Size: 78.00mm\n \n- Compression Ratio: 12.9:1\n \n- Includes advanced skirt coating designed to assist with the initial break-in process and reduce friction for improved performance after wear-in.\n \n- Constructed from a high-quality alloy for durability and optimal engine function.\n \n- Direct replacement for original pistons, offering a first-class solution for your vehicle.\n\n**Replacement Parts Available:**\n\n \n- ProX Ring Set\n \n- ProX Piston Pin\n \n- ProX Clips","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-7800-prox-011338a-04-17-crf250x","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/f8330631a543:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/f8330631a543:1"}},"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."]}}