Abstract: A stabilizer beam for a roller blade skater. The beam has a first end which supports a brake pad for stopping the skater. A second end detachably retains an insert for supporting an implement useful for stabilizing the roller blade skater on the roller blades. The implement may be one of another brake pad, a free turning wheel and a hockey stick blade. The invention therefore provides a simple, reliable beam which assists roller blade skaters in stopping reliably in minimum space and provides a beam which promotes stability on roller blades by permitting the user to adapt the beam to his skill and/or activity. A brake pad on each end of the beam is preferred for beginner skaters, a wheel on one end of the pad is preferred for experienced skaters wishing to travel at high speed, while a hockey stick blade is preferred for skaters of any skill level wishing to manipulate a ball or a puck while skating.