Quote Originally Posted by mimitabby View Post
How are you measuring the noise level?

If you ride where there are lots of cars passing you, you bet it is going to affect you.
Hearing loss can be proven from just attending 1 rock concert!

wear earplugs (or AN earplug) in that spin class
http://www.radioshack.com/search/ind...%20meters&sr=1

The above link goes to a device that someone in the music biz told me about. The product description discusses using it for measuring music mixes etc., BUT it measure overall sound decible levels. Obviously on the gym stero, you'd just set it next to the speaker and get the read. On the bike, gosh... if you really wanted to measure it, suppose it could be affixed somewhere for a test and trial. But, I would think the ENT specialist would be able to quote off the top on what levels a car produces, large truck, motor cycle accelerating etc. Just take that, and think about the multiplication of times being passed on a various length rides! Obviously we need to hear the traffic coming up behind us for safety. But if the one ear is prone to exposure, then one plug mght be a saver. Adding that on the list to discuss with the doc.