{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"1914309d64b3","name":"PISTON KIT 09-25 SX50 39.5mm A, PROX 01.6019.A","sku":"56-W802.A.PX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":51.49,"formatted":"£51.49"},"summary":"ProX Piston Kit 39.50mm Bore. Ready to install, ProX Piston Kits are supplied complete with piston rings, wrist pin, and circlips. ProX pistons are precision machined on the latest CNC equipment and use a low-expansion, low-friction piston alloy. Uses an OEM style tin coating to assist the break-in process. Meets or exceeds OEM quality. Direct OEM replacement. All products are factory tested for 100% reliability. Designed to handle increased power loads.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"39.5mm"},{"label":"Variant Id","value":"257808"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W802_2EA_2EPX/5262811157ff00ca.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W802_2EA_2EPX/5262811157ff00ca.jpg"],"description":"ProX Piston Kit 39.50mm Bore. Ready to install, ProX Piston Kits are supplied complete with piston rings, wrist pin, and circlips. ProX pistons are precision machined on the latest CNC equipment and use a low-expansion, low-friction piston alloy. Uses an OEM style tin coating to assist the break-in process. Meets or exceeds OEM quality. Direct OEM replacement. All products are factory tested for 100% reliability. Designed to handle increased power loads.","descriptionMarkdown":"### ProX Piston Kit 39.50mm Bore\n\nThis ProX Piston Kit is designed for 2-stroke engines and features a 39.50mm bore. It is a direct OEM replacement part, manufactured to meet or exceed original equipment quality standards. The piston is precision machined using state-of-the-art CNC equipment and utilizes a low-expansion, low-friction alloy, identical to that used by major Japanese engine manufacturers. The kit includes piston rings, a wrist pin, and circlips, ensuring it is ready for installation. A tin coating is applied to assist with the break-in process.\n\nThis piston kit is engineered to handle increased power loads and is factory tested for 100% reliability. It is a high-quality replacement part that offers guaranteed satisfaction.\n\n- Bore Size: 39.50mm\n\n- Engine Type: 2-Stroke\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\n\n- Quality: Meets or exceeds OEM quality\n\n- Design: Engineered to handle increased power loads\n\n- Testing: Factory tested for 100% reliability","weightGrams":null,"fitments":[{"make":"GASGAS","model":"MC 50","cc":null,"notes":null,"years":"2021–2025"},{"make":"HUSQVARNA","model":"TC 50","cc":null,"notes":null,"years":"2017–2025"},{"make":"KTM","model":"50 SX","cc":null,"notes":null,"years":"2009–2025"}],"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-09-25-sx50-395mm-a-prox-016019a","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/1914309d64b3:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/1914309d64b3:1"}},"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."]}}