Why do car tires have grooves?
Show answer & explanation
Answer: To channel water away
To channel water away ✓ — Correct! Grooves channel water away from under the tire, preventing hydroplaning. On wet roads, water can lift the tire and cause loss of control. The patterns are designed to push water out quickly!
To make tires lighter — Wrong. Grooves don't significantly reduce weight. Their purpose is water evacuation for wet-road safety.
To absorb road bumps — Wrong. Suspension absorbs bumps, not tire grooves. Tread patterns are specifically for water management.
Go deeper: Hydroplaning
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