-Material: Aluminum 7075-T6
-BCD: SRAM Direct Mount
-Full form CNC machines
-Tooth Count: 28T, 30T, 32T, 34T, 36T
-Compatible with: 10, 11 Speed Chain
-Colors: Black/ Red/ Blue/ Green/ Purple/ Orange
-Weight: 56.3g(28T), 63.5g(30T), 72.7g(32T), 79.2g(34T)