{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"a276be2f5d24","name":"PISTON KIT 14-15 YZF250 77.00, PROX 01.2414.B, 2-RING","sku":"56-W4961.B.PX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":4,"price":{"amount":188.28,"formatted":"£188.28"},"summary":"PISTON KIT 77.00 mm Bore STD Compression 13.5:1. 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 all major Japanese engine manufacturers use. Uses an OEM style tin coating to assist the break-in process. Replacement parts: PROX RING SET 02.3340. PROX 01.2414.B.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77mm"},{"label":"Variant Id","value":"256477"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4961_2EB_2EPX/e9f17271e8c43481.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4961_2EB_2EPX/e9f17271e8c43481.jpg"],"description":"PISTON KIT 77.00 mm Bore STD Compression 13.5:1. 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 all major Japanese engine manufacturers use. Uses an OEM style tin coating to assist the break-in process. Replacement parts: PROX RING SET 02.3340. PROX 01.2414.B.","descriptionMarkdown":"### ProX Piston Kit 77.00mm - 2 Ring\n\nThis ProX Piston Kit is engineered for optimal performance and durability. It features a 77.00 mm bore size and a standard compression ratio of 13.5:1. The kit is ready for immediate installation, including essential components such as piston rings, a wrist pin, and circlips. Precision machining on state-of-the-art CNC equipment ensures a perfect fit and function.\n\nProX pistons utilize a low-expansion, low-friction alloy, mirroring the materials used by major Japanese engine manufacturers. The kit includes an OEM-style tin coating that aids in the crucial break-in process for your machine.\n\nThis kit is designed as a direct replacement part. Replacement ring sets are available separately.\n\n \n- Bore Size: 77.00 mm\n \n- Compression Ratio: 13.5:1\n \n- Ring Configuration: 2-Ring\n \n- Included Components: Piston, Piston Rings, Wrist Pin, Circlips\n \n- Material: Low-expansion, low-friction alloy\n \n- Coating: OEM-style tin coating for break-in assistance\n \n- Manufacturing: Precision CNC machined","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"WR 250F","cc":null,"notes":null,"years":"2015–2019"},{"make":"YAMAHA","model":"WRF 250","cc":null,"notes":null,"years":"2014–2018"},{"make":"YAMAHA","model":"YZ 250F","cc":null,"notes":null,"years":"2014–2018"},{"make":"YAMAHA","model":"YZ 250FX","cc":null,"notes":null,"years":"2014–2019"},{"make":"YAMAHA","model":"YZF 250","cc":null,"notes":null,"years":"2014–2015"},{"make":"YAMAHA","model":"YZF X 250","cc":null,"notes":null,"years":"2014–2019"}],"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-14-15-yzf250-7700-prox-012414b-2-ring","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/a276be2f5d24:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/a276be2f5d24:1"}},"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."]}}