When you’re upgrading wheels, getting offset and backspacing right is what makes the difference between a perfect stance and rubbing on fenders, brakes, or suspension. Here’s how they work, how to measure them, and where to get fitment help for your vehicle.
Offset and backspacing describe how a wheel sits in the wheel well.
They’re two ways of describing the same relationship. More positive offset = more backspace (tucks in toward the vehicle). More negative offset = less backspace (pushes outward).
Shop wheels and use the vehicle fit tool to see only sizes and offsets that fit your ride.
Offset can be positive, zero, or negative:
Many modern vehicles use positive offset wheels. Some trucks and off-road builds run zero or negative offset for a wider track. Check the back of your current wheels for a stamped offset and use our fit tool to match safe specs for your vehicle. Then preview styles on your exact vehicle with the Wheel Visualizer.
Backspacing is the distance from the mounting surface to the wheel’s back edge. The correct backspacing leaves room for steering, brakes, and suspension without interference.
There’s a direct relationship between offset and backspacing. Use our Offset–Backspacing reference to translate between the two.
See common width/offset/backspace equivalents in our reference image: Wheel Offset and Backspacing Conversion Chart.
If you’re adding larger tires, consider a matched wheel and tire package so we can optimize fit, ride, and speedometer accuracy.
Use the Store Locator to find your nearest Discount Tire. We focus on tires and wheels and do not perform wheel alignments in‑house; if your vehicle needs an alignment, we’ll point you to trusted local alignment shops. At Discount Tire, you can count on: - Professional wheel and tire mounting and balancing - TPMS services and replacement - Free air checks and free flat repair (whether you bought from us or not) - Tire rotations and balance services (complimentary for tires purchased at Discount Tire) - Road‑hazard coverage options - Online booking to save time in‑store
Make an appointment or call your local store for availability.
While details vary by retailer, you’ll commonly see: - Mounting and computer balancing - New valve stems or TPMS service as needed - Installation torque check and re‑torque - Lifetime rotation and balance services (often included when you buy from that retailer) - Flat repair and air checks - Road‑hazard warranties or protection plans as options - Low price match policies See our Low Price Guarantee and current Deals.
For genuine TRD (Toyota Racing Development) wheels, check with your local Toyota dealer. If you’re after TRD‑style fitments or want us to mount tires on TRD wheels you already own, we’re happy to help. Browse compatible Toyota fitments with our vehicle tool, or explore popular styles like TSW Sebring, Vision Boost, and Liquid Metal Shadow, then find a store for ordering and installation.
For the best match to how and where you drive, use Treadwell—our data‑driven tire finder. It compares real‑world performance, projected tread life, and total cost to recommend daily‑driver vs. performance options for your vehicle. You can also check current Cooper tire offers.
Have questions about offset, backspacing, or fitment? Our wheel experts are here to help. Make an appointment or find a store to get started.