SUPACAZ KAZZE CARBON RD 45 HOLOGRAM 59T OS versions are designed for

OS versions are designed for use in frames with worn-out

Includes extra pivot bushings

Unidirectional carbon fibre hand cranks

12-speed wide range MTB cassette for XD freehub bodies

Lightweight 2-piece alloy cartridge design

SUPACAZ KAZZE CARBON RD 45 HOLOGRAM 59T OS versions are designed forDual BOA Fit System for a fast, effortless, precision fit Dual functioning VaporX system ventilates air through the shoe and channels moisture out, keeping your feet cool & dry At the core of the Kazze is an unbelievably stiff NASA grade 3K carbon sole that resists flexing and twisting under the highest loads HeliumHeel With Super Stiff 3K Carbon Sole Asymmetrical Tongue: Maximum comfort and ultra secure with no pressure points. Breathable Ergonomic