The knobs on these tires stick out about 3/8" and I think I read somewhere that itires with knobs less than one inch deep should be replaced. This quad with these worn tires is an amazing climber so I can’t imagine needing more traction. Maybe these tires are good enough for me because I’m not riding up anything extreme or riding through any mud. In the Sierra Nevada Mtns where I ride the dirt is grippy and the rocks are too. However, if these worn knobs substantially increase my risk of puncture or are dangerous in any way I’ll get new tires.
Here are pics of the tires and terrain that is about as extreme as I have ridden so far.
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