RYET Semi-Titanium Cassette （L argest 2 cogs: Two-layer aviation Aluminum Remaining cogs: Titanium. Fits Shiman HG freehub only! CASSETTE SIZE: 11-34T. CASSETTE SPEEDS: 12-speed. MADE FROM: | Largest 2 cogs: Two-layer aviation Aluminum (strength-optimized) | Remaining cogs: Titanium (weight-optimized).
