as long as you enjoy it, bicycle also can ride highway unless the law specifically forbids it.
konvoi kapcai (i mean really santai konvoi without superman) goes 70~90kmh.
some Harley's like the 884 can go only 130~140kmh cruising, so this one should be fine too.

These bikes use rim sizes that are non-17 inch, something that holds me back as used the variety of 17 inch tires.

Rebel - 16/16
Vulcan - 18/17
Virago - 19/15
this 350 - 21/16