Operator Overloading copy constructs and = operator

Question

How do I create a copy constructor that copies an object to the newly instantiated object and also how do I use the (==) operator to compare the two Tricycle object’s speeds? Here is the sample code!

#include <iostream>

class Tricycle
{
private:
    int* speed;
  //static int speedlim;

public:
    Tricycle();
    // copy constructor and destructor use default
    int getSpeed() const { return *speed; }
  //static int getspeedlim() {return speedlim;}
    void setSpeed(int newSpeed) { *speed = newSpeed; }
    Tricycle operator=(const Tricycle&);
  void operator++();
  void operator++(int);
};

  //Tricycle operator++();
  //Tricycle operator++(Tricycle,int);

Tricycle::Tricycle()
{
    speed = new int;
    *speed = 5;
  //speedlim=40;
  }

Tricycle Tricycle::operator=(const Tricycle& rhs){ 
  
    if (this == &rhs)
        return *this;
    delete speed;
    //speed = new int;
    //*speed = rhs.getSpeed();
    return *this;
}

void Tricycle::operator++(){
  (*speed)++;}
void Tricycle::operator++(int){
  (*speed)++;}  

int main()
{
    Tricycle wichita;
  //std::cout << "the speed limit is : " << Tricycle::getspeedlim();; 
    std::cout << "Wichita's speed : " << wichita.getSpeed() << "\n";
    std::cout << "Setting Wichita's speed to 6 ...\n";
    wichita.setSpeed(6);
    Tricycle dallas;
    std::cout << "Dallas' speed : " << dallas.getSpeed() << "\n";
    std::cout << "Copying Wichita to Dallas ...\n";
    wichita = dallas;
    std::cout << "Dallas' speed : " << dallas.getSpeed() << "\n";

  wichita.setSpeed(5);
  wichita++;
  std::cout << "Wichita's speed : " << wichita.getSpeed() << "\n";

  wichita.setSpeed(5);
  ++wichita;
  std::cout << "Wichita's speed : " << wichita.getSpeed() << "\n";
  
    return 0;
}

Here is a test I tried using pre-increment and post-increment to inc speed. This is the answer.

Wichita's speed : 5
Setting Wichita's speed to 6 ...
Dallas' speed : 5
Copying Wichita to Dallas ...
Dallas' speed : 5
Wichita's speed : 6
Wichita's speed : 6

But for these, I'm genuinely lost. ????