Cyclus Tools single speed & BMX freewheel remover tool to be used with a 32mm open-end wrench (tool can alternatively be clamped in a vice). 4 notches, approx. 40mm diameter (outside to outside) - e.g. compatible with Shimano, Dicta, ACS, White Industries, Sturmey Archer, Halo. Fits over axles up to 16mm diameter.