CERTAIN MOTORCYCLES EQUIPPED WITH COMBINED-BRAKE SYSTEMS HAVE A PROPORTIONING CONTROL VALVE (PCV) THAT MECHANICALLY PROPORTIONS BRAKE FORCE WHEN THE REAR BRAKE IS APPLIED. A SEAL IN SOME PCVS IS IMPROPERLY SHAPED, AND BRAKE FLUID LEAKAGE MAY OCCUR.
CERTAIN MOTORCYCLES EQUIPPED WITH COMBINED-BRAKE SYSTEMS HAVE A PROPORTIONING CONTROL VALVE (PCV) THAT MECHANICALLY PROPORTIONS BRAKE FORCE WHEN THE REAR BRAKE IS APPLIED. A SEAL IN SOME PCVS IS IMPROPERLY SHAPED, AND BRAKE FLUID LEAKAGE MAY OCCUR.