CNC Vespa 50 Special, 50 L, N, R handlebar stem CNC Vespa 50 Special, 50 L, N, R quick throttle modification 360 PG machined from billet aluminum . The body of the stem is designed so as not to make structural changes to the handlebar , at the time of assembly, the stem has two attachment points, one in the extreme part of the handlebar body, in the part below the pipe clamp and one in the inner part of the handlebar ( headlight area).The front brake cable passage is the same as the original pipe.