{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"ca3aaa501d2a","name":"PISTON KIT 50MM KAWASAKI KX 65 02-21, ATHENA S4C05000001A 80CC BIG BORE","sku":"56-K120.50_PK","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":73.21,"formatted":"£73.21"},"summary":"ATHENA Cast Piston Kit for Big Bore Cylinder Kit S4C05000001A. Features a 49.95 mm bore diameter and a flat piston head type. This melted piston is designed with a special high-performance aluminum alloy with high silicon content. Some piston skirts are treated with a molybdenum disulfide coating to reduce friction. Includes piston, pin, circlips, and piston rings produced in Japan with wear-resistant coatings. Technical features include a Big End Pin Diameter of 12x8x40 mm, 65 cc displacement, 0.10 Kg net weight, 1 segment, and standard piston pin type. For competitive use only. Part No. 56-K120.50_PK.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"50mm"},{"label":"Variant Id","value":"252724"}],"image":"https://www.oro2u.com/media/catalog/product/5/6/56-k120-50-pk.jpg","images":["https://www.oro2u.com/media/catalog/product/5/6/56-k120-50-pk.jpg"],"description":"ATHENA Cast Piston Kit for Big Bore Cylinder Kit S4C05000001A. Features a 49.95 mm bore diameter and a flat piston head type. This melted piston is designed with a special high-performance aluminum alloy with high silicon content. Some piston skirts are treated with a molybdenum disulfide coating to reduce friction. Includes piston, pin, circlips, and piston rings produced in Japan with wear-resistant coatings. Technical features include a Big End Pin Diameter of 12x8x40 mm, 65 cc displacement, 0.10 Kg net weight, 1 segment, and standard piston pin type. For competitive use only. Part No. 56-K120.50_PK.","descriptionMarkdown":"### Athena Big Bore Piston Kit - 49.95mm\n\nUpgrade your engine's performance with this high-quality Athena Big Bore Piston Kit. Expertly crafted from a special high-silicon aluminum alloy, this piston offers superior reliability and enhanced performance compared to original equipment. Manufactured using advanced CNC machining, it ensures precise dimensional tolerances for optimal engine operation.\n\nThe smooth piston profile promotes efficient fuel flow and proper flame propagation, while some applications feature a molybdenum disulfide coating on the piston skirts. This treatment significantly reduces friction, further boosting performance and extending the piston's lifespan.\n\nEach Athena piston undergoes rigorous testing, from dynamometer benches to on-track validation, ensuring it meets the highest quality standards and can withstand extreme conditions. This kit includes the piston, pin, circlips, and piston rings, providing a complete solution for your engine needs. Piston rings are produced in Japan with wear-resistant coatings for increased durability and optimal cylinder liner contact.\n\n**Key Features:**\n\n \n- Big Bore Piston Kit from Athena\n \n- Crafted from high-performance aluminum alloy with high silicon content\n \n- Precision CNC machined for tight tolerances\n \n- Smooth profile for improved airflow and combustion\n \n- Molybdenum disulfide coating (on select models) for reduced friction\n \n- Includes piston, pin, circlips, and piston rings\n \n- Piston rings made in Japan with wear-resistant coatings\n \n- Engineered and tested for performance and reliability\n \n- Piston Bore Diameter: 49.95mm\n \n- Piston Head Type: Flat\n \n- Piston Type: Melted\n \n- Number of Segments: 1\n \n- Displacement: 65cc\n \n- Weight: 0.10 Kg\n\n**Please note:** Products designed for increased displacement and power intended for competitive use only. Athena disclaims responsibility for any use contrary to national regulations.","weightGrams":null,"fitments":[{"make":"KAWASAKI","model":"KX 65","cc":null,"notes":null,"years":"2002–2021"}],"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-50mm-kawasaki-kx-65-02-21-athena-s4c05000001a-80cc-big-bore","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/ca3aaa501d2a:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/ca3aaa501d2a: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."]}}