hello craig ,
the point is to cut on the inner side of the rim , until you reache the inner upstand ring , also you must remove the inner ring on the outside of the rim , because the bead of the tires is a bit wide, and they wont fit properly between 2 upstanding side's .
also there are men riding with the inner ring still on it, and gleu the tyre behind the second inner upstand ring, same effect, not so nice looking
