{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"2c42f5912263","name":"REAR SPROCKET TWINRING JTX251.49GR, TWINSTAR ALLOY & STEEL","sku":"SR245-49.JT.TW","brand":"JT","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":41.58,"formatted":"£41.58"},"summary":"The JT TwinStar rear sprocket features a core made from lightweight aviation grade Ergal 7075-T6 Aluminium, precision manufactured using state of the art laser cutting and CNC machining. The steel outer ring is heat-induction hardened for durability, creating a sprocket that can last up to six times longer than a standard 7075-T6 aluminium sprocket. This sprocket is a JT JTX251.49GR model with an alloy and steel construction.","attributes":[{"label":"General Product Group","value":"Chain & Sprockets"},{"label":"General Product Type","value":"Sprockets & Components (Rear)"},{"label":"Variant Id","value":"296168"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-49_2EJT_2ETW/f130c5a6b6ae97af.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-49_2EJT_2ETW/f130c5a6b6ae97af.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-49_2EJT_2ETW/9d491a3b1fadb250.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-49_2EJT_2ETW/aa8df1e6b5deef49.jpg"],"description":"The JT TwinStar rear sprocket features a core made from lightweight aviation grade Ergal 7075-T6 Aluminium, precision manufactured using state of the art laser cutting and CNC machining. The steel outer ring is heat-induction hardened for durability, creating a sprocket that can last up to six times longer than a standard 7075-T6 aluminium sprocket. This sprocket is a JT JTX251.49GR model with an alloy and steel construction.","descriptionMarkdown":"### JT TwinRing JTX251.49GR Rear Sprocket\n\nThis JT TwinRing rear sprocket combines the lightweight benefits of aviation-grade Ergal 7075-T6 aluminum with the durability of a heat-induction hardened steel outer ring. Precision manufactured using advanced laser cutting and CNC machining techniques, this sprocket is designed for longevity and performance.\n\n**Key Features:**\n\n \n- Core Material: Lightweight aviation-grade Ergal 7075-T6 Aluminium.\n \n- Outer Ring: Heat-induction hardened steel for extended lifespan.\n \n- Manufacturing: Precision made using state-of-the-art laser cutting and CNC machining.\n \n- Durability: The hardened steel outer ring provides up to six times longer life compared to standard 7075-T6 aluminum sprockets.","weightGrams":null,"fitments":[{"make":"FANTIC","model":"XE 125","cc":null,"notes":null,"years":"2021–2024"},{"make":"FANTIC","model":"XE 300","cc":null,"notes":null,"years":"2024"},{"make":"FANTIC","model":"XEF 250","cc":null,"notes":null,"years":"2021–2024"},{"make":"FANTIC","model":"XEF 310","cc":null,"notes":null,"years":"2024"},{"make":"FANTIC","model":"XEF 450","cc":null,"notes":null,"years":"2022–2024"},{"make":"FANTIC","model":"XX 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