* Tire Size and Sidewall: 22-inch rims require a tire with a very short sidewall. This dramatically reduces the ride comfort, making it incredibly harsh and bumpy. It also significantly increases the risk of damage to the rims and tires from potholes and other road imperfections.
* Suspension and Clearance: The Trailblazer's suspension wasn't designed for such large wheels. You'll likely experience rubbing on the fenders, suspension components, or even the body of the vehicle, especially when turning or going over bumps. This requires a significant lift kit, which is expensive and alters the vehicle's handling.
* Brakes: The larger rims might not clear the existing brake calipers. You may need to upgrade your brake system, adding further cost and complexity.
* Speedometer Calibration: The larger wheels will affect your speedometer's accuracy, potentially leading to inaccurate readings.
* Handling: The altered center of gravity and reduced sidewall will significantly affect handling, making the vehicle less stable and more prone to accidents.
In short, while technically feasible with significant modifications and expenses, putting 22-inch rims on a 2002 Trailblazer is generally a bad idea. It will negatively impact ride quality, handling, and potentially cost far more than the aesthetic benefit. Sticking to the recommended wheel sizes for your vehicle is strongly advised.