Fidlock Spacer

A practical spacer/adapter for the Fidlock TWIST bike base mount. There are four versions (29/31/33/35mm) corresponding to the tube diameters I had on my bikes. All versions are available in the print profile. Simply delete the ones you don't need.The primary purpose of the spacer/adapter is to close the gap between your bike and the Fidlock mount if the threads of the bottle cage protrude beyond the frame.