R-R-R-Raw Power was a handle-grip accessory for children's bikes that made a kind of motorcycle engine noise when revved. It was very similar to the VaRooom and Za-Zooom which did the same kind of thing. The R-R-R-Raw Power had a better noise than the Za-Zoom though and didn't need a battery.
Most kids fitted R-R-R-Raw Power handle grips to bikes like the Sears Spyder, Huffy Thunder Road and the Raleigh Chopper that were made to look like motorbikes anyway.
Do You Remember R-R-R-Raw Power?
Do You Remember R-R-R-Raw Power?