CNC Machined from AL7075/T6 the PRO chainrings are ramped and pinned for perfect shifting. The Pro chainrings are available for 9 or 10-speed drivetrains.
DESCRIPTION & MATERIALS • Precision CNC machined AL7075/T6 • Shifting ramps and stainless steel pins on outer rings SIZES • 48/38T, 53/39T FINISH • Black anodized with CNC silver • Laser etched logo