Abbey Bike Tools preHAG

The preHAG from Abbey Bike Tools offers a quick way to check derailleur hanger alignment without removing the derailleur. This 3D printed tool complements the original H.A.G. by allowing a fast visual check of the derailleur cage's alignment with the cogs. It presses onto the largest cog, providing a reference plane to judge if the hanger is bent, affecting shifting. While not as precise as the H.A.G., the preHAG is ideal for pre-ride or post-crash checks. Made in Bend, Oregon, it reflects Abbey's commitment to quality and user-friendly tools.