Skip to main content
My Account My Account
Menu

Q: What does the knurled barrel actually do?

The UP-03 barrel is knurled, meaning a textured band is machined where the tire bead seats. That texture bites the tire and reduces the chance of it slipping on the wheel during drag launches or hard track use, when a Model 3’s torque tries to rotate the tire independently of the rim. It is a detail aimed squarely at aggressive driving.

Tesla Model S

INSTALLATION guide

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.
more FREQUENTLY ASKED QUESTIONS you might find interesting
Find answers to common questions about Unplugged Performance products, services, and policies.
Tesla Model S

WARRANTY QUESTIONS

Did you know that 90% of our customers express concerns about their vehicle warranty.
close