20 and 22 inch rims for Trailblazers are getting pretty hard to find because of the wonky bolt pattern.
I ended up ordering a set of reconditioned original SS rims from EBay. Three of them are sitting in my den, and #4 should be shipped later this week. But Im kinda picky about how my car looks. I wanted my rims in grey or gunmetal powder coat, which left original SS rims in hyper silver as my only option.
If you are okay with polished or satin alloy, or chrome or black, then you can contact Factory Reproductions in Chino, CA for a set of SS rims in 20 or 22 inches.
Otherwise you can drive up to Wheel Warehouse in Orange. They have two or three pages of choices for the TB on their website. https://wheelwarehouse.com/
Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum
A forum community dedicated to Chevy Trailblazer and GMC Envoy owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, towing capacity, maintenance, and more!