Bora 1.25 Wheel Spacers | 30mm Hub-Centric Adapters
Our Bora 1.25 wheel spacers provide precision-engineered 30mm spacing to push your wheels outward for improved stance, clearance, and handling. Each spacer is CNC-machined from aerospace-grade 6061-T6 aluminum right here in the USA, delivering the durability and accuracy professional installers demand.
Hub-centric design ensures perfect centering on your vehicle’s hub, eliminating vibration and maintaining factory-level wheel balance. Whether you’re fitting larger tires, clearing oversized brake calipers, or dialing in your truck’s aggressive stance, these 1.25-inch spacers transform your wheel fitment without sacrificing safety or performance.
We include grade 10.9 wheel studs pre-installed and torqued to specification, so you get a complete bolt-on solution. Every set ships with detailed installation instructions and fits dozens of popular truck and SUV bolt patterns.
- 30mm (1.25 inch) machined thickness for precise wheel offset adjustment
- Hub-centric design with vehicle-specific pilot diameter for vibration-free fitment
- Aerospace-grade 6061-T6 aluminum construction with corrosion-resistant finish
- Pre-installed grade 10.9 wheel studs torqued to factory specification
- CNC-machined in the USA with ±0.02mm tolerances
Hub-Centric Engineering & Construction
We machine every Bora 1.25 wheel spacer from a solid billet of 6061-T6 aluminum alloy, the same material used in aircraft components and high-performance racing applications. This ensures our 30mm spacers maintain structural integrity under the demanding loads of daily driving, towing, and off-road use.
The hub-centric design features a precision-machined pilot bore that matches your vehicle’s hub diameter exactly. This critical design element centers the spacer and wheel assembly on the hub rather than relying solely on lug nuts, eliminating the vibration and imbalance that plague cheaper lug-centric spacers. Our CNC machining process holds tolerances to within ±0.02mm, ensuring perfect concentricity every time.
Installation Hardware & Bolt Pattern Compatibility
Pre-Installed Wheel Studs
We equip every Bora 1.25 wheel spacer with grade 10.9 heat-treated steel studs that are pre-installed and torqued to specification at our facility. This means you don’t need to source longer wheel studs separately or worry about proper stud installation—the hardware is already integrated and ready for your wheels.
The extended studs provide adequate thread engagement for your factory lug nuts, maintaining the same safety margin as your original wheel mounting system. We calculate stud length precisely for the 30mm spacer thickness, ensuring you have the correct amount of thread without studs protruding excessively.
Fitment Benefits & Applications
Adding 30mm of wheel spacing delivers multiple functional and aesthetic improvements to your truck or SUV. The wider track width improves cornering stability by lowering the vehicle’s effective center of gravity and reducing body roll during turns. You’ll notice more planted handling characteristics, especially when towing or carrying heavy loads.
Brake caliper clearance is a common challenge when upgrading to larger brake kits or installing aftermarket wheels with insufficient spoke clearance. Our Bora 1.25 spacers push the wheel mounting surface outward, creating the additional room needed for big brake upgrades without requiring expensive custom wheels.
Complete Your Wheel Setup with Bora Spacers
What people are saying
Common Questions About Bora 1.25 Wheel Spacers
Yes, our Bora 1.25 wheel spacers are engineered specifically for safe daily driving when properly installed. The 30mm thickness is well within safe parameters for most trucks and SUVs, and our hub-centric design maintains proper wheel centering and load distribution.
We manufacture these spacers from aerospace-grade 6061-T6 aluminum with pre-installed grade 10.9 wheel studs that meet or exceed OEM strength standards. The key to safe operation is proper installation, regular torque checks, and ensuring you select the correct bolt pattern and hub bore diameter for your vehicle.
Our Bora 1.25 wheel spacers are designed to work with factory wheels and factory lug nuts in most applications. The pre-installed wheel studs are sized to provide adequate thread engagement when using your OEM lug nuts, maintaining the same safety margin as the original wheel mounting system.
However, some vehicles with particularly short factory studs may require longer lug nuts. We provide detailed compatibility information for specific vehicle makes and models, and our technical support team can verify fitment for your exact application before you order.
Your vehicle’s bolt pattern is typically listed in the owner’s manual or can be found stamped on the back of your factory wheels. The bolt pattern consists of two numbers: the number of lug holes and the diameter of the circle they form.
Common truck patterns include 6×135 (Ford), 6×139.7 (Chevy/GMC/Toyota), and 5×150 (Toyota/Lexus). You can also measure the pattern yourself or use our vehicle fitment tool on the website by entering your year, make, and model. Our customer support team is available to help confirm the correct specifications if you’re unsure.
Installation requires standard tools that most DIY enthusiasts already have: a quality torque wrench, socket set, jack, and jack stands. You don’t need any special proprietary tools or equipment.
The most important tool is a calibrated torque wrench to ensure lug nuts are tightened to your vehicle manufacturer’s specification. We include detailed torque specifications and installation instructions with every set. The pre-installed studs eliminate the need for stud installation tools or presses.
Hub-centric spacers like our Bora 1.25 models use a precision-machined pilot bore that centers the spacer and wheel on the vehicle’s hub. This design ensures the rotating assembly is perfectly balanced and eliminates vibration.
Lug-centric spacers rely only on the lug nuts for centering, which often leads to vibration, uneven tire wear, and potential wheel bearing stress. The hub-centric approach is the same method used by vehicle manufacturers for factory wheel mounting and is always the preferred design for safety and performance.
We do not recommend stacking wheel spacers. Each spacer is engineered as a complete wheel mounting system with specific stud length and load distribution characteristics. Stacking spacers compromises the structural integrity of the wheel mounting system and can lead to safety issues.
If you need more than 30mm of spacing, we offer Bora spacers in thicker options including 1.5 inch (38mm) and 2.0 inch (50mm) sizes. These single-piece solutions provide the additional offset you need while maintaining proper engineering and safety standards.
We recommend checking lug nut torque after the first 50-100 miles of driving following installation. This initial re-torque ensures all components have properly seated under normal driving loads.
After that, check torque whenever you rotate tires or any time you remove the wheels for maintenance. It’s also good practice to verify torque at the beginning of each season, especially if you experience significant temperature changes that can affect metal expansion and contraction. Regular torque checks take just a few minutes and provide important peace of mind.