Rollator Wheel Size
Almost any style rollator is available with either 6" or 8" wheels. Both wheel sizes work indoors and as well as outdoors. Common sense says that the 8" will always work better for a mover-and-shaker. The greater the wheel diameter the less revolutions it turns, and as a result, less vibration is transmitted through the frame, and common thresholds in doorways are not a problem.
6" work well for Petite users 5'2" or shorter.
You'll look silly if you are 6' tall and use little-bitty wheels!
6" work for users indoors most of the time.
8" work best for daily outdoor usage.
6" wheels for Sunday-Drivers.
8" wheels for Movers-and-Shakers.