As a Bracket for Super slimStyle RPM Meter.
I don't use it as an ETC Bracket, I use it as a Bracket for additional Meter as the title says.
The diameter of the Bolt is the same as the diameter of the Handlebar Switch, so it's ideal for use with a Digital Tachometer.
However, the Material:Please note that it is aluminum and will break easily if you bend it too much.
Here is a video of the FZr1000 going through an ETC Lane.

