Arms are carefully engineered using ultra-high strength 7050 aluminum alloy to maximize strength to weight ratio. Fully forged for maximum fatigue resistance and then extensively CNC machined for that classic Race Face look. Aggressive I-Beam profiling minimizes weight while maintaining stiffness and strength. Race Face Turbine chainrings are 100% CNC machined from super-hard 7075 aluminum to maximize wear resistance & impact strength.
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