PURPOSE: To provide pulse ring, which can secure the flatness of the surface opposite to a sensor and which can restrict generation of the deformation or the distortion at the time of fitting to a wheel hub to reduce generation of detection error, and obtain the manufacture thereof.

CONSTITUTION: In a pulse ring, of which cross sectional form is set into tray and in which multiple slits 1A are formed in the circumferential direction thereof, a ring member 2 having a fitting hole for fitting to a wheel hub is formed integrally with the back side of the surface 1B opposite to a sensor at the inside of the peripheral edge thereof.