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In this work we consider the effect of an $R^2$ term on the kineticmisalignment axion theory. By using the slow-roll assumptions during inflationand the field equations, we construct an autonomous dynamical system for thekinetic axion, including the effects of the $R^2$ term and we solve numericallythe dynamical system. As we demonstrate, the pure kinetic axion attractor istransposed to the right in the field phase space, and it is no longer$(\phi,\dot{\phi})=(\langle \phi \rangle,0)$, but it is$(\phi,\dot{\phi})=(\langle \phi '\rangle,0)$, with $\langle \phi '\rangle\neq0$ some non-zero value of the scalar field with $\langle \phi '\rangle> \langle\phi \rangle$. This feature indicates that the kinetic axion mechanism isenhanced, and the axion oscillations are further delayed, compared with thepure kinetic axion case. The phenomenological implications on the duration ofthe inflationary era, on the commencing of the reheating era and the reheatingtemperature, are also discussed.

$R^2$ Gravity Effects on the Kinetic Axion Phase Space