Rotation problem in a Stunt Game

Hello Everyone.

I have a bike with which i want to perform a stunt i.e when bike is in air it can rotate 360 on xAxis. Problem is i have spent hours in rectifying the best possible way to do this but unable to do so. I used transform.Rotate function but it doesn't work because on xAxis it rotates from -90 to 90 then change the y-Axis and rotates again. Similarly same problems encountered when I used transform.eularAngles and in Quaternion angles as well.

Now i also worked with torque and you can rotate it to a certain degree. Please help me with this, i'm stuck with it from long time.

I am working on a stunt game. Is there is any way to work for that.

Here's my Code for Rotating Bike:

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class RotatingStunt : MonoBehaviour {

 private float currentAngleX, lastAngleX = 0, currentAngleY, currentAngleZ;  
 private float staticXAxis, staticYAngle;  
 private bool rotateLeft, rotateRight;
 private BikeController bikeController;
 public Rigidbody rb;

 // Use this for initialization
 void Start () {
     rotateLeft = false;
     rotateRight = false;
     staticXAxis = transform.position.x;
     staticYAngle = 0;
     rb = gameObject.GetComponent<Rigidbody>();
 }
 
 void FindBikeController() {
     bikeController = gameObject.GetComponent<BikeController >();
 }


 // Update is called once per frame
 void FixedUpdate () {
     if(!bikeController)
         FindBikeController();
     if(rotateRight && bikeController.speedOfBike != 0) {    // Rotating Bike to Right Side
         rb.AddTorque (transform.right * 1000f * Time.fixedDeltaTime, ForceMode.Acceleration);
         // Quaternion target = Quaternion.Euler(currentAngleX, 0, 0);

         // // Dampen towards the target rotation
         // transform.rotation = Quaternion.Slerp(transform.rotation, target,  Time.deltaTime * 5.0f);
         // rb.AddTorque(10,0,0);
         // currentAngleX += 150 * Time.deltaTime;
         // transform.eulerAngles = new Vector3(currentAngleX, currentAngleY, currentAngleZ);
         // transform.rotation = Quaternion.Euler(new Vector3(currentAngleX, currentAngleY, currentAngleZ));
         // print("Right = "  + transform.rotation);
     } else if(rotateLeft && bikeController.speedOfBike != 0) {    // Rotating Bike to Left Side
         rb.AddTorque(-transform.right * 1000f * Time.fixedDeltaTime, ForceMode.Acceleration);
         // currentAngleX -= 150 * Time.deltaTime;
         // Quaternion localRotation = Quaternion.Euler(currentAngleX - lastAngleX, 0, 0);
         // transform.rotation = transform.rotation * localRotation;
         // transform.eulerAngles = new Vector3(currentAngleX, currentAngleY, currentAngleZ);
         // print("Left = " + transform.rotation);
     }


     currentAngleZ = 0;
     
     currentAngleX = transform.eulerAngles.x;
     currentAngleZ = transform.eulerAngles.z;
     if(!(transform.position.x < (staticXAxis + 0.01) && transform.position.x > (staticXAxis - 0.01)))        // Trying to put bike on xAxis as bike will move straight
         transform.position = new Vector3(staticXAxis, transform.position.y, transform.position.z);            
     if(staticYAngle != transform.eulerAngles.y) {            // Trying to put bike on original yAxis if bike turn on wrong side while rotating
         currentAngleY = staticYAngle;
         transform.eulerAngles = new Vector3(currentAngleX, staticYAngle, currentAngleZ);    
     }
     // transform.eulerAngles = new Vector3(currentAngleX, currentAngleY, currentAngleZ);
     // }
     // print("Left = " + transform.eulerAngles.x);
 }

 public void RotatePlayerToLeft() {
     rotateLeft = true;
     rotateRight = false;
     currentAngleX = transform.eulerAngles.x;
     currentAngleY = transform.eulerAngles.y;
     currentAngleZ = transform.eulerAngles.z;
 }
 public void RotatePlayerToRight() {
     rotateRight = true;
     rotateLeft = false;
     currentAngleX = transform.eulerAngles.x;
     currentAngleY = transform.eulerAngles.y;
     currentAngleZ = transform.eulerAngles.z;
 }
 public void DontRotate() {
     rotateLeft = false;
     rotateRight = false;
 }

}

Through Buttons i'm calling functions for rotating left or right and in update applied torque.

Looking forward for your response.

Thanks in Advance