Why Cybertruck Fitment Is Different
The Tesla Cybertruck is unlike any production truck that came before it. It uses a steer-by-wire system with no mechanical connection between the steering wheel and the front wheels. Its air suspension varies ride height by up to 4 inches. And at 6,843 lbs for the Cyberbeast, it is the heaviest production EV on American roads.
These characteristics create fitment parameters that do not apply to any other truck. An offset that works perfectly on an F-150 may put a CT spoke inside the brake caliper at full air suspension drop. A load rating sufficient for a 5,500-lb pickup is inadequate for the CT platform. And a center bore adapted from a multi-vehicle wheel will create vibration that a steer-by-wire system transmits directly to the steering wheel with no mechanical dampening.
This guide covers every parameter that matters for CT fitment — with the actual numbers you need.
Bolt Pattern (PCD)
The Cybertruck uses a 6x139.7mm bolt pattern — six lug nuts on a 139.7mm pitch circle diameter. This is the same PCD as many full-size trucks (Silverado, Tundra, Tacoma), which means bolt pattern alone does not guarantee fitment. Every other dimension must still be verified independently.
Lug nut specification: M14 x 1.5, 21mm hex. Factory lug hardware is compatible with Xolaris wheels — no aftermarket lug nuts required. Torque specification: 151 lb-ft. Re-torque after first 50 miles.
Center Bore
The Cybertruck hub flange diameter requires a CT-specific center bore in the wheel. A hub-centric wheel — where the center bore precisely matches the hub — is the only correct fitment for the CT platform. The steer-by-wire system will amplify any vibration caused by a non-hub-centric wheel far more than a traditional steering rack would.
All Xolaris wheels are machined to CT-specific center bore tolerances within 0.02mm. Avoid wheels that require a center bore adapter — these are not hub-centric and introduce micro-vibration that the CT's steering system will make audible and tactile.
Offset (ET Value)
Offset is the distance in millimeters from the wheel's hub mounting face to its centerline. Positive offset pushes the wheel further under the body. Negative offset pushes it outward.
The Cybertruck's factory offset creates a geometry that has specific clearance requirements:
- Brake caliper position relative to the spoke envelope
- Fender well clearance at full lock and maximum suspension drop
- Bearing load angle (offset directly affects bearing longevity under the CT's platform weight)
For a vehicle that uses steer-by-wire and air suspension, offset must be validated across the full suspension travel range — not just at static ride height. Xolaris wheels are CAD-validated against the CT suspension geometry at every height setting from minimum to maximum.
Load Rating
Load rating is the single most important specification for the Cybertruck aftermarket. At 6,843 lbs, the Cyberbeast requires a minimum load rating of approximately 1,711 lbs per wheel to support the vehicle's weight with even distribution.
However, dynamic load during acceleration, braking, and cornering can multiply static weight by 2–4x at the wheel. For the CT's torque output and weight, a load rating of 3,000 lbs per wheel minimum is the appropriate safety margin for street use.
Xolaris wheels are load-rated at 3,195 lbs per wheel and FEA-validated to 8G+ vertical load without permanent deformation. Factory OEM cast wheels are rated at approximately 2,500 lbs per wheel — a margin that was engineered for the CT's factory weight but does not account for spirited driving dynamics.
Tire Sizing
The Cybertruck's air suspension is calibrated for specific tire diameter ranges. Deviating from factory tire diameter by more than approximately 3% will affect:
- Speedometer and odometer accuracy
- Air suspension ride height calibration
- Range estimates and regenerative braking calibration
For optimal performance, we recommend maintaining factory tire diameter when upgrading wheel size. As wheel diameter increases, tire sidewall height decreases proportionally to maintain consistent overall diameter. This is sometimes called "plus-sizing" or "staggered fitment."
See our Fitment Guide PDF for specific tire size recommendations by wheel diameter for each CT variant.
Brake Clearance
The Cybertruck uses substantial brake hardware — calipers sized for its platform weight and Cyberbeast performance requirements. Wheel spoke geometry must clear the brake caliper, heat shield, and brake hose routing at every suspension travel position.
Static clearance testing on a lift is not sufficient. The wheel must be validated at full air suspension drop, full compression, and full lock — all simultaneously — to identify real-world interference. Xolaris wheels are validated through all of these positions in 3D CAD before a single physical prototype is cut.
Summary: CT-Specific Fitment Parameters
| Parameter | Specification | Notes |
|---|---|---|
| PCD (Bolt Pattern) | 6x139.7mm | 6 lug, 139.7mm pitch circle |
| Center Bore | CT-specific (hub-centric) | No adapter rings |
| Lug Thread | M14 x 1.5 | 21mm hex socket |
| Torque Spec | 151 lb-ft | Re-torque at 50 miles |
| Minimum Load Rating | 3,000 lbs/wheel | Recommended for safety margin |
| Xolaris Load Rating | 3,195 lbs/wheel | FEA validated to 8G+ |
For specific size and offset recommendations for your CT variant, request a personalized fitment spec — we'll build you a configuration sheet for your specific setup.