When drag racing or any other situation, do motorcyclist look at the tac when they shift, or do they shift off of sound, or some other method?

 

I'm pretty sure most everyone looks at the tach. Some guys try to say they shift off ear, but I don't see how that can even be accurate so I chalk it up to ricer talk.

 

I shift off the tach, it's kinda hard to tell the difference between 13,000 and 15,000rpms by ear.

 

idk about at the track but when im running mine hard i have to use the tach, im so used to the sounds my stang makes its just a habit to shift by sound but the bike revs so much higher it takes some restraint to keep from shifting after seven grand