Traction/ˈtrækʃn/ Definition 1 of 4Pro Tip 1/2Weather Effects Traction is reduced in wet or icy conditions, making it harder for vehicles to move safely. After it rained, my bike had less traction on the road. Pro Tip 2/2Tire Condition Worn-out tires may reduce traction, leading to more slippage on surfaces. My old tires gave poor traction, so I replaced them.