Custom Offsets Wheel & Tire Clearance Calculator: Will It Rub or Scrub?
Looking to upgrade your stance and want to make sure you have enough room? Use this calculator to make sure your future setup will fit!
To start, plug in your current wheel width, offset, height, width, and diameter in comparison to a new setup, and it will give you the difference in clearance and positioning.
The biggest fear when upgrading wheels and tires is the dreaded "rub." You spend thousands on a new setup, bolt them on, turn the steering wheel, and hear the sound of rubber chewing up your fender liner—or worse, hitting your suspension components.
Upgrading your truck’s footwear changes the physics of the vehicle. A wider wheel with a negative offset changes your scrub radius, pushing the wheel further out. A taller tire changes your gearing and fills the wheel well differently. To avoid costly mistakes, you need to compare your Current Setup directly against your New Setup before you click "Buy".
The Custom Offsets Wheel & Tire Clearance Calculator is designed to visualize the difference between what you have now and what you want to run. By inputting your stock (or current) wheel and tire specs alongside your potential upgrades, we calculate three critical fitment data points:
1. Inner Clearance: This tells you if the new wheel will sit closer to your suspension struts and control arms. If you lose too much inner clearance, you risk mechanical interference.
2. Outer Position: This calculates "poke." It tells you exactly how many inches further out the new wheel will sit compared to your current set. This is vital for determining if you need fender flares or if you’re going to be throwing rocks at your mirrors.
3. Diameter Difference: A change in overall diameter affects your speedometer, odometer, and final drive ratio.
Whether you are upgrading to a massive mud-terrain tire or downsizing the wheel diameter for a meatier sidewall, this tool gives you the confidence that your new setup will fit your rig without needing a sawzall to clear the fenders.