Improperly aligned frame or fork dropouts can cause bent axles and quick-release skewers as well as tracking and shifting problems. The FFG-2 quickly determines whether rear frame or front fork dropouts are aligned and parallel. If an error is detected long handles and comfortable molded grips afford plenty of leverage for straightening. Chrome-plated steel construction. FFG-2 FEATURES Measures dropout widths from 100 to 160 mm NOTE: The FFG-2 is compatible with frames and forks with dropouts and is not intended for thru axle frames or forks. The FFG-2 can measure but not correct misaligned dropouts on carbon fiber frames and forks.