![](https://bti-usa.com/images/pictures/at/at0000.jpg)
- A simple tool that is meant to gauge derailleur hanger alignment without having to remove the rear wheel
- Presses onto largest cog on bike to quickly provide a reference to judge if further attention is needed
- Made in the USA: Bend, Oregon
Manufacturer | Abbey Tools |
Manufacturer Part Number | FRM-STD-PREHAG |
175168-Q0-L