{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"909626ba9721","name":"PISTON KIT 05-09 CR250 66.40 B, PROX 01.1325.A1 HONDA MX","sku":"56-W860+00B.PX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":155.9,"formatted":"£155.90"},"summary":"ProX Piston Kit B 66.40mm Bore. Precision machined on state-of-the-art CNC equipment using a low-expansion, low-friction piston alloy similar to that used by major Japanese engine manufacturers. This kit offers a first-class solution to replace the original piston. Features OEM style Tin coating to assist the wear-in process and a new skirt coating that reduces friction after wear-in, increasing performance. Nominal piston size is 66.35mm. Includes replacement parts PROX RING SET 02.1325, PROX PISTON PIN 04.1856, and PROX CLIPS 05.1812. Manufacturer part number 01.1325.A1.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"66.40mm"},{"label":"Variant Id","value":"258098"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W860_2B00B_2EPX/22b503eff6393ef5.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W860_2B00B_2EPX/22b503eff6393ef5.jpg"],"description":"ProX Piston Kit B 66.40mm Bore. Precision machined on state-of-the-art CNC equipment using a low-expansion, low-friction piston alloy similar to that used by major Japanese engine manufacturers. This kit offers a first-class solution to replace the original piston. Features OEM style Tin coating to assist the wear-in process and a new skirt coating that reduces friction after wear-in, increasing performance. Nominal piston size is 66.35mm. Includes replacement parts PROX RING SET 02.1325, PROX PISTON PIN 04.1856, and PROX CLIPS 05.1812. Manufacturer part number 01.1325.A1.","descriptionMarkdown":"### ProX Piston Kit - High Performance Replacement\n\nUpgrade your engine with the ProX Piston Kit, engineered for exceptional performance and durability. This premium piston is precision machined using state-of-the-art CNC equipment, utilizing the same advanced low-expansion, low-friction alloy trusted by major Japanese engine manufacturers. ProX Piston Kits offer a superior solution for replacing original pistons in your motorcycle, scooter, moped, ATV, or personal watercraft.\n\nThis kit features a special coating designed to optimize performance and engine life. The OEM-style tin coating aids in the crucial break-in process, while a newly developed skirt coating not only assists with wear-in but also actively reduces friction once the engine is running. This advanced black coating, crafted from a specialized material blend, is proven to enhance overall performance.\n\n**Key Features:**\n\n \n- Precision machined from a low-expansion, low-friction alloy.\n \n- Utilizes the same high-quality materials as leading Japanese manufacturers.\n \n- Features advanced skirt coating for reduced friction and improved performance.\n \n- Includes OEM-style tin coating to aid in the initial engine wear-in process.\n \n- A first-class replacement part for your powersports vehicle.\n\n**Replacement Parts Available:**\n\n \n- ProX Ring Set\n \n- ProX Piston Pin\n \n- ProX Clips\n\n**Piston Nominal Size:** 66.35mm\n\n**Kit Bore Size:** 66.40mm","weightGrams":null,"fitments":[],"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-05-09-cr250-6640-b-prox-011325a1-honda-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/909626ba9721:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/909626ba9721:1"}},"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."]}}