Problem Solvers Direct Mount Adaptor 55mm offset, 100mm BB, 34.9mm clamp w/shims for 31.8/28.6

These handy adaptors allow riders to install direct-mount derailleurs onto frames without the necessary mounts. Works for Shimano and SRAM High Direct Mount front derailleurs 34.9mm Clamp with shims for 31.8 & 28.6 55mm offset Single and double crank