Upgrading your vehicle’s wheels can dramatically enhance its appearance and performance. However, choosing the right wheels involves understanding critical technical aspects like offset and backspacing. Let’s explore why these measurements are essential for custom wheel fitment.

Understanding Wheel Offset

Wheel offset is the distance between the wheel’s mounting surface and centerline, measured in millimeters. It can be:

Positive Offset:

The mounting surface is closer to the outside edge, which is common in front-wheel-drive vehicles.

Negative Offset:

The mounting surface is closer to the inside edge, typical in vehicles with a deep dish look.

Zero Offset:

The mounting surface aligns perfectly with the wheel centerline.

Incorrect offset can cause clearance issues, leading to rubbing against fenders or suspension components.

Understanding Backspacing

Backspacing is the distance from the wheel’s mounting surface to the back edge, measured in inches. It determines how far the wheel sits inward or outward.

Too Much Backspacing:

Wheels may rub against suspension components or the inner fender.

Too Little Backspacing:

Wheels may stick out too far, causing fender rubbing or instability.

Interplay Between Offset and Backspacing

Offset and backspacing work together to position the wheel correctly:

Positive Offset / Increased Backspacing:

The wheel moves inward.

Negative Offset / Decreased Backspacing:

The wheel moves outward.

Trust the experts at RNR Tire Express

When it comes to customizing your vehicle, offset and backspacing is crucial. The measurements will continue to affect your vehicle’s look and performance, so make sure you meet with a professional you trust. If it’s time to upgrade your car, head to RNR Tire Express, your local Tire and Wheel Store, and one of our Tire and Wheel experts will help find the perfect fit for you. To find a location near you, visit RNRTires.com/Locations.