Cleaning the Visor of your Helmet
The spray thrown up on the road will be part rain water, part road grit and much – wiping your glove across will quickly scratch your visor. The best thing is to wash if off with clean tap water and then use a soft dry cloth to wipe the visor clean.
The other key thing is cleaning your visor. We've found the best products are dedicated visor cleaners that are a spray foam. The foam lifts dirt away from the visor so when you wipe it off with an old cotton tee-shirt it sort of floats off the visor rather than scratching it. A good sponge and cleaning kits are very good too.
Don't try to remove old dirt/flies by brushing it off with your glove. Simply moisten a kitchen towel, spread it on your visor and leave for ten minutes. Soft dirt is easier to clean off and less likely to scratch.
Jeffrey