The barbell is one of the most versatile tools for fitness. The drawback, however, is that the use of a barbell often requires additional weights or other forms of resistance, which we will cover in a different post. There are various parts of the barbell that are important to pay attention to, depending on the purpose of your training. There are types of bars that are made for specific training purposes, such as Olympic weightlifting bars, powerlifting bars, and various other specialty bars (safety squat bar, football bar, duffalo bar, etc.). However, this article will focus on the traditional straight barbell, which includes the Olympic weightlifting bars and powerlifting bars.
#1 The Knurl
The knurling of a barbell is preferential. There are many kinds of knurling for many different purposes. When comparing a barbell specifically made for Olympic weightlifting to a barbell specifically made for powerlifting, you will notice differences in depth of the knurling. Powerlifting bars typically have grippier knurl that bites into your palm. This is important for grip when lifting heavy weight. Olympic bars on the other hand have more subtle grip that allows for quick movement, without ripping up your hands. Multi-purpose bars, such as the Rogue Matt Chan Bar, may have variations with knurling throughout the barbell. The Rogue Matt Chan Bar has a center knurling that is very passive compared to the rest of the barbell. In comparison, powerlifting bars have very aggressive center knurling to prevent slippage when doing heavy back squats.
Aside from the depth of the knurling, various manufacturers have different styles of knurling where the peaks may be shaved off to lighten the grip. Some knurling has volcano knurling where the center of each knurl has an indentation.
#2 The Diameter
The diameter is also an important consideration. Powerlifters typically prefer, and are regulated by, a 29mm diameter barbell. This provides a less whippy bar for stability during heavy lifts. However, for the everyday gym-goer or home gym enthusiast, the diameter come’s down to preference. Some people prefer a larger barbell diameter because it has more surface area to distribute the weight. Others prefer thinner diameters because of the size of their hands. Others may prefer different diameters for different exercises, but the important thing is to know that different diameters have different purposes. So it is important to expose yourself to these different diameters to identify what works best for you.
#4 Bushing vs Bearing
You often hear about the spin of a barbell. There are arguments stating that having more spin reduces strain on your wrists. Olympic weightlifters prioritize this, as the quick movement of the exercise creates a lot of force. Powerlifters on the other hand typically prefer a more stable approach in order to move heavy weight with maximum control. This is where the preference for bushings or bearings come in. Barbells with bushings are often preferred by powerlifters because the spin is slower and more predictable when lifting heavy weight. Olympic weightlifters on the other hand, often prefer barbells with bearings because they provide a more fluid spin. You can easily visualize the difference when you spin the sleeve of a bushing barbell and a bearing barbell. The bearing barbell will more than likely continue to spin long after the bushing barbell has stopped. However, as with all gym equipment, it comes down to preference. It is not a hard set rule where powerlifters can only use bushing barbells or weightlifters can only use bearing barbells. This is also reflected by high quality equipment manufacturers. Companies like Ivanko produce olympic weightlifting bars with bushings that have very smooth spin. It ultimately comes down to the lifter and what they prefer.
#5 Finish
The finish is the first thing you notice about a barbell. Finishes range from cheap chrome to stainless steel. With more and more manufacturers developing barbells, finish options such as cerakote, have become very popular. Finishes are an important consideration for home gym enthusiasts because different finishes may be more beneficial for environmental circumstances. For example, more humid environments would benefit from stainless steel barbells. Some finishes also influence the aggressiveness of the knurling as chroming, or other finishes such as black oxide, fill in the knurl. This is why many lifters prefer bare steel or stainless steel. The bare steel barbell often leads to rust and requires more maintenance. For some, it is a small price to pay for the improved feel of the barbell.
As you can see, there are many factors that come into play when selecting a barbell. However, the most important thing to remember is to use a quality barbell. With manufacturers like Rogue Fitness, Titan Fitness, Rep Fitness, etc. there are plenty of affordable barbells with all types of knurling, diameters, and bushings/bearings. Do not overwhelm yourself with all of the aspects of a barbell. It’s more important to find a barbell that suits your personal preference, needs, and will keep you lifting consistently.