The big craze today is plus-sizing tire/wheel combinations, commonly referred to as installing "dubs." A typical dub application might be to go from a 17" tire/wheel combo to a 22" setup. This kind of setup allows you to move to a wider footprint tire with a larger diameter rim (usually quite flashy or with spinner hubcaps). There are two factors to consider when making this kind of a move:

· Make sure the new tire is not too wide. If the tire is too wide, it might not clear critical suspension and steering components. In addition, the tire could rub or scrape against body panels, causing the early demise or your expensive dubs! Careful measurement before installation is critical. Measure and re-measure! It might take a little extra time but could save you significant expense.

· Make sure the overall diameter of the new tire/wheel combo is very close to the original configuration (ideally, it should be exact). If the change is too drastic, the speedometer and vehicle performance computer will be thrown out of kilter. The computer receives critical information from speed sensors, and this info is used by the performance computer to determine fuel delivery, ignition, and transmission shift strategy.