Attaches with included extra-long bolts (with lovely pre-applied anti-seize) to either top or bottom bolts of a Redshift Shockstop or Shockstop Pro suspension stem. Very well made, worked well with my Karoo 2.

Stopped using it because I stopped using the stem (was treating a symptom of my bike fit at the time, not the cause), and when I sold the stem this didn’t convey.

Inserts are available for other bike computer manufacturers but I only have the one for Garmin (used with a quarter turn adapter on my Karoo 2)