When it's really hot and humid I rinse my helmet, straps and all. off in water after every ride. Every couple of days I rinse my gloves out also as they get "the funk".
One thing I found that will add longevity to your helmet is to wear a sweat-absorbing headband. I like the Halo head bands on shorter rides but wear their bandanna type on longer rides to protect my hairless streamlined head from the sun. They get rinsed off every day also.
Every couple of weeks I soak the headbands, bandanas and gloves in the sink with a few drops of Dawn in a mixing bowl then rinse them off. I got two years on a helmet doing this and although the outside is all scratched and beat up the liner is still in pretty good shape.
Use cold water, not hot.
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Last edited by drlogik; 07-28-21 at 08:56 PM.