Description: SHS CNC Gen. 3 12:1 Super High Speed Gear Set
This is a 12:1 gear set made by SHS, these recently introduced 12:1 sets are just slightly faster that the 13:1 sets. For comparison stock gear sets are around 18:1. For some reason many manufacturers don't actually label the ratio, but rather use code names. Most manufacturers "high speed" gear sets are 16:1, so this set is much faster than that.