A system for tire inflation comprising: • a drive mechanism defining a rotational axis, comprising: o an eccentric mass that offsets a center of mass of the drive mechanism from the rotational axis along a radial vector, the eccentric mass rotatable about the rotational axis; • a drive coupler having a first and second end, the first end coupled to the drive mechanism radially distal the rotational axis; • a reciprocating pump coupled to the second end of the drive coupler; • a torque regulation mechanism configured to apply a controllable torque to the eccentric mass, the torque regulation mechanism further configured to mechanically engage the eccentric mass and the drive coupler in a first mode, and mechanically disengage the eccentric mass and the drive coupler in a second mode; and • a controller, communicatively coupled to the torque regulation mechanism, the controller configured to operate the system between: ∘ the first mode, wherein the controller controls the torque regulation mechanism to supply a first torque to the eccentric mass, such that the torque regulation mechanism maintains the eccentric mass at a substantially constant non-zero angle between a gravity vector and the radial vector; and ∘ the second mode, wherein the controller controls the torque regulation mechanism to supply a second torque to the eccentric mass, such that the torque regulation mechanism maintains the eccentric mass at a substantially zero angle between the gravity vector and the radial vector. • a drive mechanism defining a rotational axis, comprising: o an eccentric mass that offsets a center of mass of the drive mechanism from the rotational axis along a radial vector, the eccentric mass rotatable about the rotational axis; • a drive coupler having a first and second end, the first end coupled to the drive mechanism radially distal the rotational axis; • a reciprocating pump coupled to the second end of the drive coupler; • a torque regulation mechanism configured to apply a controllable torque to the eccentric mass, the torque regulation mechanism further configured to mechanically engage the eccentric mass and the drive coupler in a first mode, and mechanically disengage the eccentric mass and the drive coupler in a second mode; and • a controller, communicatively coupled to the torque regulation mechanism, the controller configured to operate the system between: ∘ the first mode, wherein the controller controls the torque regulation mechanism to supply a first torque to the eccentric mass, such that the torque regulation mechanism maintains the eccentric mass at a substantially constant non-zero angle between a gravity vector and the radial vector; and ∘ the second mode, wherein the controller controls the torque regulation mechanism to supply a second torque to the eccentric mass, such that the torque regulation mechanism maintains the eccentric mass at a substantially zero angle between the gravity vector and the radial vector. ∘ the first mode, wherein the controller controls the torque regulation mechanism to supply a first torque to the eccentric mass, such that the torque regulation mechanism maintains the eccentric mass at a substantially constant non-zero angle between a gravity vector and the radial vector; and ∘ the second mode, wherein the controller controls the torque regulation mechanism to supply a second torque to the eccentric mass, such that the torque regulation mechanism maintains the eccentric mass at a substantially zero angle between the gravity vector and the radial vector.