{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"839ddb368296","name":"PISTON KIT B 58MM KAWASAKI KX 125 03-07, ATHENA S4C05800002B 144CC BIG BORE, KIT B","sku":"56-K122.58_PIB","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":139.06,"formatted":"£139.06"},"summary":"ATHENA Cast Piston Kit B, 58mm Bore Diameter for Big Bore Cylinder Kit. This kit includes the piston, pin, circlips, and piston rings. Engineered with cutting-edge CNC machining for dimensional tolerances less than 0.01 mm, it's constructed from a special high-performance aluminum alloy with high silicon content. Some pistons feature a molybdenum disulfide coating on the skirt to reduce friction, enhancing performance and durability. The piston rings are produced in Japan with wear-resistant coatings for increased retention and durability, adapting perfectly to the cylinder liner. Technical features: Big End Pin Diameter 15x10x45 mm, Bore Diameter 57.95 mm, Displacement 125 cc, Net Weight 0.19 Kg, Number Of Segments 1, Piston Head Type Flat, Piston Pin Type Biconical, Piston Type Melted. Partner Cross Reference code: RING S41316157.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"Variant Id","value":"252735"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock51675_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock51675_1.jpg"],"description":"ATHENA Cast Piston Kit B, 58mm Bore Diameter for Big Bore Cylinder Kit. This kit includes the piston, pin, circlips, and piston rings. Engineered with cutting-edge CNC machining for dimensional tolerances less than 0.01 mm, it's constructed from a special high-performance aluminum alloy with high silicon content. Some pistons feature a molybdenum disulfide coating on the skirt to reduce friction, enhancing performance and durability. The piston rings are produced in Japan with wear-resistant coatings for increased retention and durability, adapting perfectly to the cylinder liner. Technical features: Big End Pin Diameter 15x10x45 mm, Bore Diameter 57.95 mm, Displacement 125 cc, Net Weight 0.19 Kg, Number Of Segments 1, Piston Head Type Flat, Piston Pin Type Biconical, Piston Type Melted. Partner Cross Reference code: RING S41316157.","descriptionMarkdown":"### Athena Piston Kit B - 58mm Big Bore\n\nUpgrade your engine's performance with the Athena Piston Kit B. This kit features a high-performance cast piston designed for increased displacement and power, engineered for reliability and exceptional performance. Manufactured with cutting-edge CNC machining, Athena pistons ensure precise dimensional tolerances for optimal engine function.\n\nCrafted from a special high-silicon content aluminum alloy, these pistons offer the same reliability as original equipment while providing superior resistance and enhanced performance. The piston's smooth profile promotes regular airflow and perfect flame propagation within the combustion chamber.\n\nSome piston skirts are treated with a molybdenum disulfide coating applied via screen printing. This treatment further reduces friction, contributing to improved performance and extended durability.\n\nEngineered in Italy by Athena's R&D department, each piston undergoes rigorous testing on engine dynamometers and on the track to validate its performance under extreme conditions. The included piston rings, produced in Japan with wear-resistant coatings, minimize friction with the cylinder for higher performance and longevity.\n\nThis complete piston kit includes the piston, pin, circlips, and piston rings. All components are designed for interchangeability and can be replaced individually if needed.\n\n#### Key Features:\n\n \n- Big Bore Kit Piston\n \n- Precision CNC machined for tight tolerances\n \n- High-performance aluminum alloy with high silicon content\n \n- Smooth piston profile for improved airflow and combustion\n \n- Molybdenum disulfide coating on some piston skirts to reduce friction\n \n- Piston rings made in Japan with wear-resistant coatings (PVD or chromium nitride)\n \n- Kit includes piston, pin, circlips, and piston rings\n \n- Engineered and tested for performance and reliability\n\n#### Technical Specifications:\n\n \n- Piston Bore Diameter: 57.95 mm\n \n- Piston Type: Melted\n \n- Piston Head Type: Flat\n \n- Piston Pin Type: Biconical\n \n- Number Of Segments: 1\n \n- Big End Pin Diameter: 15x10x45 mm\n \n- Displacement: 125 cc\n \n- Net Weight: 0.19 Kg","weightGrams":null,"fitments":[{"make":"KAWASAKI","model":"KX 125","cc":null,"notes":null,"years":"2003–2007"}],"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-b-58mm-kawasaki-kx-125-03-07-athena-s4c05800002b-144cc-big-bore-kit-b","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/839ddb368296:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/839ddb368296:1"}},"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."]}}