SM-RT97, XTR M 180MM W/LOCK RING
Shimano XTR SM-RT97 Centerlock Rotor features super lightweight Mono-body design, Center Lock Rotor Mounting System, and superior control performance.
The Center Lock system makes an easy rotor installation possible with a spline mount and lock ring. The lock ring mounting system enhances precision and rigidity while improving braking efficiency.
• Weight (w/o hardware): 180mm: 163g
