{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"5795b546e7b8","name":"PISTON KIT B 77MM HONDA CRF 250 16-17, ATHENA S5F07680003B","sku":"56-W8800.B.ATH","brand":"Athena","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":166.55,"formatted":"£166.55"},"summary":"Forged Piston Kit B 77mm Bore Diameter 76.76mm Compression Height 19.20mm Compression Ratio 13.5:1 Displacement 250cc Number Of Segments 2 Piston Type Forged Piston Pin Type Biconical Big End Pin Diameter 16x10x43.5mm Net Weight 0.19Kg Kit includes piston, pin, circlips, and piston rings. Rings are made in Japan with wear-resistant coatings for increased durability. Piston skirts may feature a molybdenum disulfide coating to reduce friction. Manufactured with high-performance aluminum alloy and CNC machining for dimensional tolerances under 0.01mm. Designed for high performance and reliability. All components are replaceable.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"76.80mm"},{"label":"Variant Id","value":"289757"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W8800_2EB_2EATH/22b6d96be9a71498.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W8800_2EB_2EATH/22b6d96be9a71498.jpg"],"description":"Forged Piston Kit B 77mm Bore Diameter 76.76mm Compression Height 19.20mm Compression Ratio 13.5:1 Displacement 250cc Number Of Segments 2 Piston Type Forged Piston Pin Type Biconical Big End Pin Diameter 16x10x43.5mm Net Weight 0.19Kg Kit includes piston, pin, circlips, and piston rings. Rings are made in Japan with wear-resistant coatings for increased durability. Piston skirts may feature a molybdenum disulfide coating to reduce friction. Manufactured with high-performance aluminum alloy and CNC machining for dimensional tolerances under 0.01mm. Designed for high performance and reliability. All components are replaceable.","descriptionMarkdown":"### Athena Forged Piston Kit B - 77mm Bore\n\nEnhance your motorcycle's performance and durability with the Athena Forged Piston Kit B. Crafted using advanced reverse extrusion and cutting-edge CNC machining, this piston ensures exceptional dimensional accuracy, with tolerances under 0.01 mm. It is constructed from a specialized high-performance aluminum alloy rich in silicon, offering reliability comparable to Original Equipment (OE) pistons while delivering superior resistance and performance.\n\nThe piston features a perfectly smooth profile designed for consistent flow and optimal flame propagation. For reduced friction and improved performance and longevity, some piston skirts are treated with a molybdenum disulfide coating applied via screen printing.\n\nAthena engineers, based in Italy, implement advanced technical solutions and maintain the highest quality standards, often exceeding OE production. Each piston undergoes rigorous testing on engine dynamometer benches and on the track to validate its performance under extreme conditions. This piston kit includes piston rings engineered in Japan with wear-resistant coatings (PVD or chromium nitride) to maximize durability and retainment, ensuring perfect adaptation to the cylinder liner even with low tangential load.\n\nThis kit contains the piston, pin, circlips, and piston rings. All components are replaceable and interchangeable.\n\n**Key Features:**\n\n \n- Type: Forged Piston\n \n- Bore Diameter: 76.76 mm\n \n- Compression Height: 19.20 mm\n \n- Compression Ratio: 13.5:1\n \n- Displacement: 250 cc\n \n- Piston Pin Type: Biconical\n \n- Number of Piston Rings: 2\n \n- Big End Pin Diameter: 16x10x43.5 mm\n \n- Net Weight: 0.19 Kg\n \n- Includes piston, pin, circlips, and piston rings\n \n- High-performance aluminum alloy with high silicon content\n \n- Molybdenum disulfide coating on select piston skirts to reduce friction\n \n- Piston rings produced in Japan with wear-resistant coatings","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRF 250R","cc":null,"notes":null,"years":"2016–2017"}],"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-77mm-honda-crf-250-16-17-athena-s5f07680003b","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/5795b546e7b8:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/5795b546e7b8:1"}},"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."]}}