I was told at the bike shop that treads in the tire do nothing. If that is the case why do they put them in. I can't believe it just for looks, as another person told me. I have Conti. 4 seasons on my bike now and I'm thinking about changing them out to Contacts. I would like to get a low pressure tire, that doesn't get many flats and good for wet roads. Thanks for any replys.
'''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Tread on a road tire does absolutely nothing. Tread on a car tire act as escape channels for water and prevent hydroplaning. A bike tire is narrow enough and highly loaded enough that hydroplaning is never an issue I've see a calculation that a bike would have to be going 85 mph to hydroplane.
Tread is put on road tires because customers think it does some good and expect it. Wrong.
Off-road tires used on soft trails, mud, etc, are a completely different story.