All-terrain chassis
The X6 pairs 20 x 4-inch fat tires with dual suspension, which is the part of the bike that most clearly changes real use. It is built to smooth out broken pavement, dirt roads, and casual off-road riding, so the ride feels more planted than a narrow-tire commuter.
That matters because this is the difference between a bike that merely looks rugged and one that can actually handle imperfect surfaces without feeling nervous. The trade-off is weight and bulk, so the same stability that helps on rough ground also makes the bike less convenient for lifting, storing, or treating like a lightweight city runabout.