Thanks to special attention to reducing thermal deformation of the rotor, the new disc brake rotor is quieter than ever, without compromising lightness or heat dispersion.
 Characteristics:
-  Never before achieved silence, but with superb and consistent braking performance on any long and steep descent, thanks to excellent heat dispersion
-  The new arm shape is more robust and offers quieter operation
-  Disc Brake Rotor Size: 140mm, 160mm, 180mm, 203mm
 Stop ring
 YES: Internal tightening
 SE: External tightening
 SJ: With stop ring (Internal tightening with magnet)