Pull UPS are a great exercise for improving back strength and overall upper body endurance. However, the size of the bar you use can make a big difference in the difficulty and effectiveness of the exercise.
There are different types of pull UPS available, including wide grip pull UPS (where the hands are spread wide), neutral grip pull UPS (where the hands are in the same position relative to the shoulder), and close grip pull UPS (where the hands are close to the shoulder).
The type of pull up you choose will depend on your strength and fitness level. If you are new to the exercise, start with a neutral grip pull up bar.
If you are more experienced, try using a wide grip pull up bar.
Overall, the size of the bar is not as important as the width of your grip. If you can comfortably grip the bar with your hands at least 18 inches apart, then the bar is wide enough.
