Jackhammer’s can be 130 decibels it’s easily a thousand times as loud as motorcycles so we really are talking different realms of sound protection being needed.
Also Motorcycle helmets should reduce things. Further it varies but motorcycles really shouldn’t be 100db, California’s legal limit is 80db for motorcycles manufactured after 1985.
At highway speed here in France, (110-130 km/hr), the wind noise is sufficient to cause tinnitus for me, if I'm not wearing ear protection under my helmet. The bike style is a factor - my touring bike has a movable windshield that can push the airflow above my head, but the wind noise from the daily bike, with a tiny windshield, is like sticking your head out the window of a moving car.
