Have an air-compressor? I put my thumb over one grip's end (hole) and put the nozzle (the cone-shaped-little blow-off-one) in the other. One, or the other, shoots off. Then you use the flat of your palm on the open end of the bars , instead of your thumb, and the other grip eventually shoots off. No rips, no tears and no stabbing yourself in an appendage with an otherwise blunt instrument (screw-driver, allen key, ice-pick, scratch-awl, etc..). Like I HAVE done...at least, once or twice, before. Got the whole scheme from my old LBS.. God bless them. So do my hands.