|This article is about a/an set of armor accessories in Kamen Rider Drive.|
Kourin Signals (コウリンシグナル Kōrin Shigunaru, lit. "Rear Wheel Signal") are real sign-like items, as well as a body part for Kamen Rider Mach and Kamen Rider Chaser's forms, located on the right shoulder for the former and the back for the latter.
A Kourin Signal alters depending on whatever item is inserted into the Mach Driver Honoh, which can be either a Signal Exchange (シグナル交換 Shigunaru Kōkan) provided by the Signal Bikes or a Tire Exchange (タイヤ交換 Taiya Kōkan) provided by the Shift Cars.
Drive also sports the DH Kourin on his right shoulder while in Type Dead Heat.