A complete guide to all three offset types exact ET ranges, fitment effects, handling changes, and which offset is right for your vehicle.
Mounting face in front of centerline. Wheel sits inward.
Mounting face exactly at centerline. Neutral position.
Mounting face behind centerline. Wheel sits outward.
Positive offset was adopted widely with the introduction of front-wheel-drive vehicles in the 1970s and 1980s. FWD vehicles require the wheel to sit close to the hub and CV joint, which demands high positive offset. A car with ET50 wheels has its mounting face sitting 50mm in front of the wheel centerline meaning the inner part of the wheel extends significantly inward behind the brake assembly.
Key effects of positive offset: more inner fender clearance, less outer fender clearance, wheel sits further under the car, reduced scrub radius, lighter steering feel.
Negative offset widens the vehicle's track the distance between the left and right wheels. A wider track improves cornering stability but increases stress on wheel bearings and CV joints. Going from ET45 to ET−10 moves the wheel 55mm outward. On a stock vehicle with 20mm of fender clearance, this would result in 35mm of poke requiring significant fender modification.
Key effects of negative offset: wider visual stance, more poke, increased track width, higher scrub radius, heavier steering, increased bearing wear over time.
ET0 is not a universal neutral starting point it only means the mounting face aligns with the center of that specific wheel. A vehicle designed for ET45 will have 45mm more poke if ET0 wheels are fitted. ET0 does not mean the wheel will sit in the same position as stock on most modern vehicles.
| Vehicle Type | Factory ET Range | Offset Type | Typical Wheel Width |
|---|---|---|---|
| FWD Compact / Sedan | ET38 – ET50 | Positive | 6.5" – 7.5" |
| FWD Hot Hatch | ET35 – ET48 | Positive | 7" – 8" |
| RWD Sports Car | ET20 – ET40 | Positive | 8" – 9.5" |
| SUV / Crossover | ET40 – ET55 | Positive | 7" – 8.5" |
| Pickup Truck (stock) | ET18 – ET30 | Positive | 7.5" – 9" |
| Lifted Truck | ET0 – ET15 | Near Zero | 9" – 12" |
| Off-Road 4x4 | ET−5 – ET−25 | Negative | 9" – 12" |
| JDM / Stance Build | ET−10 – ET−45 | Negative | 9" – 12" |
On front-wheel-drive vehicles, running very negative offset causes torque steer during hard acceleration the steering pulls left or right as the CV joints fight against the wider angle. On rear-wheel-drive vehicles, negative offset widens the rear track, which improves straight-line stability and cornering but increases bearing wear. A change of more than ±20mm from stock ET will produce noticeable handling differences on any vehicle.
Use our wheel offset calculator to see exactly how much your outer wheel position changes before committing to new wheels. Pair this with the tire size calculator on our homepage to verify your new tire size also fits correctly.