Park Tool Frame And Fork End Alignment Gauge Set SilverInformation: Improperly aligned frame and fork dropouts can cause bent axles and quick release skewers, as well as tracking and shifting problems. Features: The FFG 2 quickly determines whether dropouts are aligned and parallel If an error is detected, long handles and comfortable moulded grips afford plenty of leverage for straightening Works on frames and forks with dropout spacing up to 160 mm