The Twergo Xtreme is polyurethane, kingpinless heavy duty caster that minimizes friction and eliminates scrubbing and sliding when the wheel turns. It has the same features of the original Twergo wheels, but is designed in a barbell configuration with the wheels on the outside of the rig to help disperse weight and put more rubber on the road, with a maximum capacity of 3,500 pounds per caster.
