depend on if they fit tight or loose. if they fit tight, soak the grips in hot soapy water for 10 mins then slipem on. if they are loose spray clearcoat or high hold hairspray.
thoes are gonna be my next grips i rode my neibors canam 650 that he used to mud race and i loved the grips because they would never spin and how i do it is put duck tape on the bars
grip glue,or spraypaint. compressed air low pressure 10 psi max, cap opposite end , put a small hole in grip end, put glue on bar, start the grip on, inflate the grip with blow nozzle slide grip on, release air pressure, let set, repeat other side.