{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"2f8593555652","name":"PISTON KIT 16-18 YZF250 77.00, PROX 01.2417.C 1SM-11631-10-00, 13.5:1 (76.97mm)","sku":"56-W4966.C.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 13.5:1 (76.97mm). This kit is ready to install and includes piston rings, wrist pin, and circlips. ProX pistons are precision machined on state-of-the-art CNC equipment and use a low-expansion, low-friction piston alloy, similar to that used by major Japanese engine manufacturers. It features an OEM-style tin coating to aid the break-in process. Replacement ring set: 02.2417. Manufacturer part number: 01.2417.C.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"280507"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock79759_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock79759_1.jpg"],"description":"ProX Piston Kit 13.5:1 (76.97mm). This kit is ready to install and includes piston rings, wrist pin, and circlips. ProX pistons are precision machined on state-of-the-art CNC equipment and use a low-expansion, low-friction piston alloy, similar to that used by major Japanese engine manufacturers. It features an OEM-style tin coating to aid the break-in process. Replacement ring set: 02.2417. Manufacturer part number: 01.2417.C.","descriptionMarkdown":"### ProX Piston Kit - 13.5:1 Compression (76.97mm)\n\nThis ProX Piston Kit is designed for high-performance engine builds, offering a 13.5:1 compression ratio for increased power output. The piston measures 76.97mm in diameter.\n\nEngineered for durability and optimal performance, ProX pistons are manufactured using the latest state-of-the-art CNC equipment. The alloy used features low expansion and low friction characteristics, mirroring the materials favored by major Japanese engine manufacturers.\n\n#### Key Features:\n\n- Complete kit ready for installation\n\n- Includes piston rings, wrist pin, and circlips\n\n- Precision machined on advanced CNC equipment\n\n- Utilizes a low-expansion, low-friction piston alloy\n\n- Features an OEM-style tin coating to aid in the break-in process\n\n- Compression Ratio: 13.5:1\n\n- Piston Diameter: 76.97mm\n\nReplacement ring set available separately: 02.2417.","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"WR 250F","cc":null,"notes":null,"years":"2018–2019"},{"make":"YAMAHA","model":"WRF 250","cc":null,"notes":null,"years":"2018–2019"},{"make":"YAMAHA","model":"YZ 250F","cc":null,"notes":null,"years":"2016–2018"},{"make":"YAMAHA","model":"YZ 250FX","cc":null,"notes":null,"years":"2017–2019"},{"make":"YAMAHA","model":"YZF 250","cc":null,"notes":null,"years":"2016–2018"},{"make":"YAMAHA","model":"YZF X 250","cc":null,"notes":null,"years":"2017–2018"}],"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-16-18-yzf250-7700-prox-012417c-1sm-11631-10-00-1351-7697mm","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/2f8593555652:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/2f8593555652:1"}},"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."]}}