Improperly aligned frame or fork dropouts can cause bent axles & quick-release skewers as well as tracking & shifting problems. The FFG-2 quickly determines whether rear frame or front fork dropouts are aligned & parallel. If an error is detected long handles & 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 & forks with dropouts & is not intended for thru axle frames or forks. The FFG-2 can measure but not correct misaligned dropouts on carbon fiber frames & forks.