Twinstar Steel/Aluminum Hybrid Sprocket
Steel outer ringHeat-induction hardened high-carbon steelJT advanced tempering process achieves hardness that could last six times longer than a 7075-T6 aluminum sprocket, enhancing power transfer performanceAlu coreLightweight aviation-grade ergal 7075-T6 aluminumPrecision made using state of the art laser cutting and CNC equipment, resulting in an ultra lightweight race power design
