{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"6238f2d0b3a9","name":"PISTON KIT 01-07 YZF250 77.00, PROX 01.2406.C,3-RING","sku":"56-W188.C.PX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":188.28,"formatted":"£188.28"},"summary":"ProX Piston Kit 56-W188.C.PX. This 3-ring C piston kit features a 77.00 mm bore with STD compression 12.5:1. 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 a low-expansion, low-friction piston alloy. Uses an OEM style tin coating to assist the break-in process. Replacements parts include PROX RING SET 02.2402, PROX PIN 04.1644.4, and PROX CLIPS 05.1610. Manufacturer: Pro-X Racing.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"254912"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W188_2EC_2EPX/b7a0b14fd56bf9d5.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W188_2EC_2EPX/b7a0b14fd56bf9d5.jpg"],"description":"ProX Piston Kit 56-W188.C.PX. This 3-ring C piston kit features a 77.00 mm bore with STD compression 12.5:1. 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 a low-expansion, low-friction piston alloy. Uses an OEM style tin coating to assist the break-in process. Replacements parts include PROX RING SET 02.2402, PROX PIN 04.1644.4, and PROX CLIPS 05.1610. Manufacturer: Pro-X Racing.","descriptionMarkdown":"### ProX Piston Kit for Yamaha YZF250\n\nThis ProX Piston Kit is designed for optimal performance and durability. Each kit comes complete and ready for installation, including the piston, piston rings, wrist pin, and circlips. Precision machined using state-of-the-art CNC equipment, ProX pistons utilize a low-expansion, low-friction alloy, mirroring the materials used by major Japanese engine manufacturers.\n\nThe piston features an OEM-style tin coating, specifically applied to aid in the break-in process during your machine's initial use. This kit offers standard compression with a 12.5:1 ratio and a 77.00 mm bore size.\n\n**Key Features:**\n\n \n- Complete kit ready for installation\n \n- Includes piston, 3-ring set, wrist pin, and circlips\n \n- Precision machined for accuracy\n \n- Low-expansion, low-friction piston alloy\n \n- OEM style tin coating for enhanced break-in\n \n- Standard compression ratio: 12.5:1\n \n- Bore size: 77.00 mm","weightGrams":null,"fitments":[{"make":"GAS-GAS","model":"EC F 250","cc":null,"notes":null,"years":"2010–2015"},{"make":"YAMAHA","model":"WR 250F","cc":null,"notes":null,"years":"2001–2013"},{"make":"YAMAHA","model":"WRF 250","cc":null,"notes":null,"years":"2001–2013"},{"make":"YAMAHA","model":"YZ 250F","cc":null,"notes":null,"years":"2001–2007"},{"make":"YAMAHA","model":"YZF 250","cc":null,"notes":null,"years":"2001–2007"}],"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-01-07-yzf250-7700-prox-012406c3-ring","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/6238f2d0b3a9:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/6238f2d0b3a9:1"}},"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."]}}