Removing handlebar grips
Remove stubborn grips by using an air compressor with a nozzle on the end. Put the nozzle in the hole of the grip on one end while plugging the hole on the other grip with your thumb. Now blow while twisting the grip your thumb is over.
Other methods (if you don’t have a air compressor or a hole in the end of the grip)…
Insert something small such as an ice pick between the grip and handle bar. Spray under the grip with WD-40 using the little straw the can comes with. Work the ice pick around the handle bar to loosen and spread the WD-40.
Also slide adjustable wrench or a wrench of the right size over the handlebars and up against the grip. Tap with a hammer.
Grip removal by air compressor gone wrong…