Park Tool Frame Alignment Gauge FAG-2

Park Tool FAG-2 Frame Alignment Gauge
Many bikes do not switch properly or are not directionally stable, because the wheels are not exactly in alignment. If this condition persists after adjustment of wheels and gearing, the seat tube, chainstays and dropouts of the frame might not be in alignment. With the Frame Alignment Gauge, this can be checked guickly and easily. Only when the gauge, set to one side of the dropout, also fits exactly to the other side, the frame is aligned. Suitable for all common frame types and sizes.