Rotate object with accelerometer?

Hello. I am working on a motocross game but I have been stuck for a really long time on rotating objects with the accelerometer. I have been putting it off and working on other things but it is now a vital part of me completing my game. In real life riding the bike acts like a gyro. When you give it gas it rotates backwards and opposite when you put on the brakes. I am wanting to do the same with the accelerometer but tilting the phone forward to lean forward and back to lean backward. I converted the steering to use the accelerometer but I have no clue how I did it because it has been so long ago.

I know that if(!grounded) I want to enable the tilt in either direction, forward or back. However I do now know whether to use transform.rotate() or rigidbody.moveRotation() and how I would implement that with the accelerometer.

 public Vector3 zeroAc;
     public Vector3 curAc;
     public float yTilt;
     public float sensH = 2f;
     public float sensV = 2f;
     //public float sensD = 2f;
     public float smooth = 0.4f;
     public float GetAxisH = 0.000f;
     public float GetAxisV = 0.000f;
     //public float GetAxisD = 0.000f;
 
     public bool hasInAirControl = false;

Here are my accelerometer variables. I am using sensH and GetAxisH for my steering(horizontal).

 if (!crash) {
 
                 steer = Mathf.MoveTowards (steer, GetAxisH/*Input.GetAxis("Horizontal")*/, 0.1f);
                 accel = GetAxisV;//Input.GetAxis("Vertical");
                 brake = Input.GetButton ("Jump");
                 shift = Input.GetKey (KeyCode.LeftShift) | Input.GetKey (KeyCode.RightShift);
             } else {
                 steer = 0;
             }
 
 
         } else if (controlMode == ControlMode.touch) {
 
             if (accelFwd != 0) {
                 accel = accelFwd;
             } else {
                 accel = accelBack;
             }
             steer = Mathf.MoveTowards (steer, steerAmount, 0.07f);
 
         }

and my steering setup...

     public void BikeSteer (/*float amount*/)
     {
 
         //accelerometer
         
         curAc = Vector3.Lerp (curAc, Input.acceleration - zeroAc, Time.deltaTime / smooth);
         GetAxisV = Mathf.Clamp (curAc.y * sensV, -1, 1);
         //Debug.Log("v" + GetAxisV);
         GetAxisH = Mathf.Clamp (curAc.x * sensH, -1, 1);
         //Debug.Log("h" + GetAxisH);
         // now use GetAxisV and GetAxisH instead of Input.GetAxis vertical and horizontal
         // If the horizontal and vertical directions are swapped, swap curAc.y and curAc.x
         // in the above equations. If some axis is going in the wrong direction, invert the
         // signal (use -curAc.x or -curAc.y)
         
         //////
 
         steerAmount = GetAxisH;
     }

and here is my steering function.

Like I said I dont really know how I converted button steering to accelerometer because I havent touched my code in a few months. Any help would be greatly appreciated!