9 speed thumb shifters. Constructed of high-quality aluminum, these are durable and stylish shifters with no sacrifice of weight or function. Some cool features of thumb shifters compared with brake/shifter levers: Faster shifting Lighter Reliable Re-buildable Practically indestructible Fits road and mountain bars Hinged for easy installation Will never be obsolete These include shims for 22.2-24.0 bars allowing for compatibility with many bar options. 56160$159.99