Originally Posted by
yummygooey
The ISIS spindle is much wider than square taper, with a pretty large hole in the middle. A crank puller sized for a square taper spindle would likely destroy an ISIS spindle.
They do make universal tools, with both sizes:
http://www.amazon.com/Park-Tool-Comp...ef=pd_sbs_sg_4
http://www.amazon.com/Pedros-Univers...8414785&sr=1-4