Narrow Wide chainrings for XTR M9000/M9020 11 speed crank with custom made crank cover caps. The narrow-wide profile with our snug fit wave design have extreme chain retention qualities. Each tooth has additional CNC cut teardrop holes for better mud clea
Narrow Wide chainrings for XTR M9000/M9020 11 speed crank with custom made crank cover caps. The narrow-wide profile with our snug fit wave design have extreme chain retention qualities. Each tooth has additional CNC cut teardrop holes for better mud clearance.