{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"11d83d77cfae","name":"PISTON KIT Derbi Senda 39.85, PROX 01.7010.A","sku":"56-W9849.B.PX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":42.37,"formatted":"£42.37"},"summary":"ProX 2-stroke piston kit with a 39.85mm bore. This kit is ready to install and includes piston rings, wrist pin, and circlips. ProX pistons are precision machined using the latest CNC equipment and utilize the same low-expansion, low-friction piston alloy used by major Japanese engine manufacturers. It features an OEM-style tin coating to aid the break-in process. Replacement parts include ProX ring set, ProX piston pin, and ProX clips.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"39.85mm"},{"label":"Variant Id","value":"258911"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock57857_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock57857_1.jpg"],"description":"ProX 2-stroke piston kit with a 39.85mm bore. This kit is ready to install and includes piston rings, wrist pin, and circlips. ProX pistons are precision machined using the latest CNC equipment and utilize the same low-expansion, low-friction piston alloy used by major Japanese engine manufacturers. It features an OEM-style tin coating to aid the break-in process. Replacement parts include ProX ring set, ProX piston pin, and ProX clips.","descriptionMarkdown":"### ProX Piston Kit - 39.85mm Bore\n\nThis ProX Piston Kit is designed for high-performance two-stroke engines. It is engineered for a 39.85mm bore, ensuring a precise fit and optimal performance. Each kit is ready for immediate installation, providing a comprehensive solution for your engine's needs.\n\nProX pistons are manufactured using advanced CNC equipment, employing the same low-expansion, low-friction piston alloy trusted by major Japanese engine manufacturers. This advanced material contributes to enhanced durability and efficiency.\n\nTo facilitate a smooth break-in process, this kit includes an OEM-style tin coating. This coating aids in the initial running of your engine, promoting longevity and optimal performance from the start.\n\n**Key Features:**\n\n \n- Piston Kit for 2-Stroke Engines\n \n- Precise 39.85mm Bore Diameter\n \n- Complete with Piston Rings, Wrist Pin, and Circlips\n \n- Precision Machined on State-of-the-Art CNC Equipment\n \n- Utilizes Low-Expansion, Low-Friction Piston Alloy\n \n- Includes OEM Style Tin Coating for Easier Break-in\n \n- High-Quality Replacement Parts from ProX","weightGrams":null,"fitments":[{"make":"APRILIA","model":"RS 50","cc":null,"notes":null,"years":"2006–2008"},{"make":"APRILIA","model":"RX 50","cc":null,"notes":null,"years":"2006–2008"},{"make":"APRILIA","model":"SX 50","cc":null,"notes":null,"years":"2006–2008"}],"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-derbi-senda-3985-prox-017010a","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/11d83d77cfae:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/11d83d77cfae: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."]}}