{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"22920cc27d66","name":"PISTON KIT 77.00mm 2005-2013 YAMAHA YZF 250 NAMURA FORGED FX-40033","sku":"56-W9702.A.NF","brand":"Namura Technologies","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":9,"price":{"amount":134.27,"formatted":"£134.27"},"summary":"Forged aluminum piston kit, 77.00 mm standard bore. Features a hard-anodised crown for improved heat resistance and reduced carbon build-up, and a MOS2 low-friction skirt coating for reduced friction and aided running-in. The 100% CNC-machined dome ensures a consistent combustion shape. Supplied complete for one cylinder, including piston, ring set, wrist pin, and circlips. Specifications include a 13.5:1 compression ratio and 4-stroke single, DOHC, 5-valve engine type. Typical engine stroke is 53.6 mm. Manufacturer part number FX-40033.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"77.00mm"},{"label":"Variant Id","value":"258488"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9702_2EA_2ENF/622ecc5390a08db0.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9702_2EA_2ENF/622ecc5390a08db0.jpg"],"description":"Forged aluminum piston kit, 77.00 mm standard bore. Features a hard-anodised crown for improved heat resistance and reduced carbon build-up, and a MOS2 low-friction skirt coating for reduced friction and aided running-in. The 100% CNC-machined dome ensures a consistent combustion shape. Supplied complete for one cylinder, including piston, ring set, wrist pin, and circlips. Specifications include a 13.5:1 compression ratio and 4-stroke single, DOHC, 5-valve engine type. Typical engine stroke is 53.6 mm. Manufacturer part number FX-40033.","descriptionMarkdown":"### Namura Forged Piston Kit - 77.00mm Bore\n\nThis Namura forged piston kit is engineered for high-performance replacements and routine engine rebuilds. Designed for a precise fit, it ensures optimal combustion and durability under demanding conditions.\n\n### Key Features\n\n\t\n- Forged Aluminum Construction: Provides exceptional strength and resistance to thermal load for enhanced longevity.\n\t\n- Hard-Anodised Crown: Improves heat resistance and minimizes carbon deposit formation, maintaining peak performance.\n\t\n- MOS2 Skirt Coating: Molybdenum disulfide coating reduces friction, aids in the running-in process, and promotes smoother operation.\n\t\n- 100% CNC Machined Dome: Ensures a consistent and accurate combustion chamber shape for optimized power delivery.\n\t\n- Complete Kit: Supplied with all necessary components for a single cylinder, including the piston, ring set, wrist pin, and circlips.\n\n### Specifications\n\n\t\n- Bore Size: 77.00 mm (Standard)\n\t\n- Compression Ratio: 13.5:1\n\t\n- Engine Type: 4-stroke single, DOHC, 5-valve\n\t\n- Kit Contents: Piston, rings, wrist pin, circlips for one cylinder","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":"2005–2013"},{"make":"YAMAHA","model":"WRF 250","cc":null,"notes":null,"years":"2005–2013"},{"make":"YAMAHA","model":"YZ 250F","cc":null,"notes":null,"years":"2005–2018"},{"make":"YAMAHA","model":"YZF 250","cc":null,"notes":null,"years":"2005–2013"}],"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-7700mm-2005-2013-yamaha-yzf-250-namura-forged-fx-40033","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/22920cc27d66:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/22920cc27d66:1"}},"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."]}}