{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"2a6537fa9379","name":"PISTON KIT 2023-25 YAMAHA YZ 450F 97mm, PROX 01.2453.B","sku":"56-W4986.B.PX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":190.69,"formatted":"£190.69"},"summary":"ProX 4-stroke piston kit with a 97.00mm bore. Kit includes piston rings, wrist pin, and circlips. Pistons are precision machined using a low-expansion, low-friction alloy and feature an OEM-style tin coating for assisted break-in. Bore standard 97.00mm, piston size B 96.96mm, compression ratio 13.0:1. Manufacturer part number 01.2453.B.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"Variant Id","value":"314278"}],"image":"https://www.oro2u.com/media/catalog/product/5/6/56-w4986-b-px.jpg","images":["https://www.oro2u.com/media/catalog/product/5/6/56-w4986-b-px.jpg"],"description":"ProX 4-stroke piston kit with a 97.00mm bore. Kit includes piston rings, wrist pin, and circlips. Pistons are precision machined using a low-expansion, low-friction alloy and feature an OEM-style tin coating for assisted break-in. Bore standard 97.00mm, piston size B 96.96mm, compression ratio 13.0:1. Manufacturer part number 01.2453.B.","descriptionMarkdown":"### ProX 4-Stroke Piston Kit - 97.00mm Bore\n\nThis ProX Piston Kit is designed for high-performance 4-stroke engines. Each kit is supplied ready for installation and includes all necessary components: piston rings, wrist pin, and circlips. Precision-machined using the latest CNC equipment, ProX pistons utilize a low-expansion, low-friction piston alloy, identical to that used by major Japanese engine manufacturers.\n\nThe piston features an OEM-style tin coating, which aids in the crucial break-in process after your machine is first started. This ensures optimal performance and longevity from the outset.\n\n \n- Bore Size: Standard 97.00mm\n \n- Piston Size: B. 96.96mm\n \n- Compression Ratio: 13.0:1\n \n- Included Components: Piston rings, wrist pin, and circlips\n \n- Manufacturing: Precision machined on state-of-the-art CNC equipment\n \n- Material: Low-expansion, low-friction piston alloy\n \n- Coating: OEM-style tin coating for break-in assistance","weightGrams":null,"fitments":[{"make":"FANTIC","model":"XXF 450","cc":null,"notes":null,"years":"2023–2024"},{"make":"YAMAHA","model":"WR 450F","cc":null,"notes":null,"years":"2024–2025"},{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2023–2025"},{"make":"YAMAHA","model":"YZ 450FX","cc":null,"notes":null,"years":"2024–2025"}],"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-2023-25-yamaha-yz-450f-97mm-prox-012453b","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/2a6537fa9379:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/2a6537fa9379:1"}},"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."]}}