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

Lightweight yet robust design

It is also super easy to use

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

Dual-Action Technology

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.