Review on 🚲 Ultimate Bike Alignment Tool: BW Bicycles Derailleur Hanger Alignment Gauge for 20” - 29” MTB and Road Bikes by John Hall

Slim rear derailleur bolt for easy removal of recessed derailleur hangers. Fits very snugly between the bolt and lever so there is very little play at the end of the lever. Good textured surface won't slip out of hand when covered in grease/sticky chain. The depth converter slides well when the latch is pressed and locks in tight enough, but not so tight that you can scratch the discs if you forget to move it down while rotating the tool. Overall better than the "blue one", the only small difference is that the 10mm switching thread is not interchangeable like with the Parktool. However, if you need to replace it, you may be doing something wrong.