Mounting locations: Mounts under the saddle with hook and loop straps that attach to the saddle rails and seat post

Dual-Action Technology

All you have to do is insert the tools pins into two links and look at the gauge

Q-Factor: 52mm

Shimano Zee SL-M640 10 Speed Right Shift Lever - 22.2mm Bar Clamp - 10 Speed Virtual Parent Mounting locations: Mounts under theThe Shimano M640 Zee shifter features crisp, consistent shifts and 2 way release. The shift levers ergonomics make for an extremely comfortable, intuitive arrangement assuring no missed shifts. This is a 10 speed unit and fits directly onto the bar. Includes shifter cable and cable crimp.