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Q: What does the knurled wheel bead do?

The UP-05 has knurled beads machined into the barrel, a fine textured ring where the tire seats. That texture grips the tire bead and reduces the chance of the tire slipping on the wheel during hard acceleration. A street launch or a track start both put that load through the bead. It is a small detail that matters most when a Model 3’s instant torque hits.

Tesla Model S

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For the do it yourselfer or trained mechanic, our in-depth installation guides provide step by step detailed instructions on fitting your Tesla with Unplugged Performance Parts.
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Tesla Model S

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