Bike Fork Mount Inserts

Each fork mount insert is designed to fit a specific bike fork size, so you might need some additional inserts for all those different bike you might have.  To check the size first measure the diameter of the axle 5mm/10mm/12mm/15mm/20mm then you will need to know what the width is, to do this drop the front wheel out and measure the internal flats of the fork, (the faces that the wheel hub tightens on) this is going to be 100mm or 110mm unless its a fat bike !