{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"538f29491a96","name":"PISTON KIT 13-21 BETA RR250 Enduro 66.40, PROX 01.7313.B","sku":"56-W9857.B.PROX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":4,"price":{"amount":162.11,"formatted":"£162.11"},"summary":"ProX 2-ring piston kit with a bore of 66.40mm (B. 66.35mm). This kit includes piston rings, wrist pin, and circlips. ProX pistons are precision machined using state-of-the-art CNC equipment and are made from a low-expansion, low-friction piston alloy utilized by major Japanese engine manufacturers. Features an OEM-style tin coating to aid in the break-in process. PROX 01.7313.B.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"Variant Id","value":"310408"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9857_2EB_2EPROX/22993ba0e88efd92.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9857_2EB_2EPROX/22993ba0e88efd92.jpg"],"description":"ProX 2-ring piston kit with a bore of 66.40mm (B. 66.35mm). This kit includes piston rings, wrist pin, and circlips. ProX pistons are precision machined using state-of-the-art CNC equipment and are made from a low-expansion, low-friction piston alloy utilized by major Japanese engine manufacturers. Features an OEM-style tin coating to aid in the break-in process. PROX 01.7313.B.","descriptionMarkdown":"### ProX 2-Ring Piston Kit\n\nThis ProX Piston Kit is engineered for optimal performance and durability. It features a precision-machined piston designed for low expansion and low friction, utilizing the same high-quality alloy preferred by major Japanese engine manufacturers. The kit includes everything needed for installation: piston rings, wrist pin, and circlips.\n\nTo ensure a smooth and efficient break-in period, the piston is treated with an OEM-style tin coating.\n\n \n- Type: 2-ring piston\n \n- Diameter: 66.40mm\n \n- Includes: Piston rings, wrist pin, and circlips\n \n- Material: Low-expansion, low-friction piston alloy\n \n- Coating: OEM-style tin coating for assisted break-in\n \n- Manufacturing: Precision machined on state-of-the-art CNC equipment","weightGrams":null,"fitments":[{"make":"BETA","model":"RR ENDURO 2T 250","cc":null,"notes":null,"years":"2013–2021"},{"make":"BETA","model":"XTRAINER 250","cc":null,"notes":null,"years":"2018–2021"}],"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-13-21-beta-rr250-enduro-6640-prox-017313b","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/538f29491a96:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/538f29491a96:1"}},"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."]}}