{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"9e8e6b0197f9","name":"PISTON KIT 08-11 YZF250 77.00, PROX 01.2409.B, 3-RING","sku":"56-W4952.B.PX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":188.28,"formatted":"£188.28"},"summary":"ProX Piston Kit 77.00 mm bore, 3-ring, standard compression 13.5:1. 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 the same low-expansion, low-friction piston alloy used by major Japanese engine manufacturers. Features OEM style tin coating to assist the break-in process. Replacement parts: PROX RING SET 02.2402, PROX PIN 04.1644.4, PROX CLIPS 05.1612C.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"256432"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4952_2EB_2EPX/d801084d7032c0ce.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4952_2EB_2EPX/d801084d7032c0ce.jpg"],"description":"ProX Piston Kit 77.00 mm bore, 3-ring, standard compression 13.5:1. 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 the same low-expansion, low-friction piston alloy used by major Japanese engine manufacturers. Features OEM style tin coating to assist the break-in process. Replacement parts: PROX RING SET 02.2402, PROX PIN 04.1644.4, PROX CLIPS 05.1612C.","descriptionMarkdown":"**ProX Piston Kit - Enhance Your Engine's Performance**\n\nThis ProX Piston Kit is engineered for precision and durability, designed to restore and improve your engine's performance. Each kit includes a high-quality piston, essential rings, a strong wrist pin, and secure circlips for a complete and ready-to-install solution.\n\n### Key Features:\n\n \n- Precision Machining: Manufactured using advanced CNC equipment to ensure exact specifications and optimal fit.\n \n- Premium Alloy Construction: Utilizes the same low-expansion, low-friction aluminum alloy favored by major Japanese engine manufacturers for reliability and efficiency.\n \n- OEM Style Tin Coating: Features a tin coating that aids in the crucial break-in process for immediate performance upon starting your machine.\n \n- Complete Kit: Supplied with piston rings, wrist pin, and circlips for a hassle-free installation.\n \n- Bore Size: 77.00 mm\n \n- Compression Ratio: 13.5:1\n \n- Ring Configuration: 3-Ring Design\n\nReplace worn components with this ProX Piston Kit for renewed power and longevity. This kit is a direct replacement for specific engine models, providing a reliable upgrade manufactured to exacting standards.","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"YZ 250F","cc":null,"notes":null,"years":"2008–2011"},{"make":"YAMAHA","model":"YZF 250","cc":null,"notes":null,"years":"2007–2011"}],"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-08-11-yzf250-7700-prox-012409b-3-ring","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/9e8e6b0197f9:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/9e8e6b0197f9:1"}},"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."]}}