Motorcyclists are particularly vulnerable to noise induced hearing loss that is predominantly caused by wind-noise, not just traffic and engine noise, but the rush of wind and the high pitch whine as it passes through the tiny gap in your visor or top vent. Even at speed as low as 50mph (80kph) the wind noise inside the helmet can reach 85dB which is the figure generally regarded as the point where some kind of ear protection should be used. At 70mph (115kph) this figure can be as high as 105dB and of course beyond these speeds wind-noise increases further still. The recommended daily exposure to this noise level is just 15 minutes. Our attenuating generic and custom-fit earplug solutions as well as earplug/headphone combinations to keep you safe and entertained. Read Motorcycle hearing loss and be aware of the facts and the reasons to use earplugs whilst on a motorbike. Earplugs Return Policy.