06/18/2026
Over 60 lbs of unsprung weight reduction is a serious upgrade for the Model Y Performance Juniper.
In this comparison, we measured the rear OEM 21" Arachnid 2.0 wheel and tire package against the rear 21" UP-03 wheel and tire package.
The OEM setup with a 275/35R21 tire weighs 72.66 lbs.
The UP-03 setup with a wider 295/30R21 tire weighs just 57.42 lbs.
That is a 15.24 lb reduction per corner, or over 60 lbs across the vehicle based on the measured per-corner difference.
Reducing unsprung and rotational mass helps improve steering response, braking feel, acceleration response, suspension control, and overall driver feedback. Combined with forged construction, motorsport-derived engineering, strong brake clearance, and a clean OEM+ fitment, the UP-03 is built to make the Model Y Performance Juniper feel sharper and more capable.
Shop Model Y Performance Juniper UP-03 wheel & tire packages now at Unplugged Performance.