When it comes to putting heavy weight overhead with a kettlebell, most lifters immediately think of the standard military press or the explosive push press.
But if you want to unlock true, elite-level shoulder mobility, thoracic rotation, and core stability, you need to look to the old-school physical culture of the late 19th and early 20th centuries. Strongmen of the bronze era didn’t just push weights straight up; they moved their bodies around the weight.
Two of the most legendary, highly effective lifts from this era are the Kettlebell Side Press and the Kettlebell Bent Press.
While they look incredibly similar to the untrained eye, they rely on completely different mechanics and serve distinct training purposes. Let’s break down the Side Press vs. Bent Press so you can master both safely.
1. The Kettlebell Side Press: Active Pushing with a Lateral Lean
The Side Press is a hybrid lift. It bridges the gap between a strict overhead military press and a windmill.
How It Works:
In a Side Press, you press the kettlebell away from your body while simultaneously leaning your torso away from the weight.
Unlike a strict press—where your torso remains perfectly upright—the Side Press allows you to use your latissimus dorsi (lats) and obliques to create a stronger mechanical advantage. You are actively pushing the bell up with your shoulder and arm while your torso tilts to the side.
The Mechanics:
- The Start: Clean the kettlebell to a solid rack position. Hip-hinge slightly so your hips shift away from the lifting side.
- The Movement: As you press the kettlebell vertically, tilt your torso laterally to the opposite side.
- The Finish: Your arm is fully locked out overhead, and your torso is leaned over at roughly a 30-to-45-degree angle. You then stand up straight to complete the rep.
Key Benefit: Greatly increases active shoulder pressing strength, builds powerful obliques, and allows you to press heavier loads than you ever could with a strict, upright military press.
2. The Kettlebell Bent Press: Moving Under the Weight
Despite its name, you do not actively "press" the weight in a Bent Press.
The Bent Press is actually a skeletal folding maneuver. Your arm stays completely passive. Instead of pushing the kettlebell up, you literally hold the kettlebell in place and fold your torso down underneath it until your arm is locked out, then you perform a support squat to stand it up.
Because you are using the massive musculature of your back, hips, and legs to support the load rather than just your shoulder muscles, the Bent Press is the ultimate leverage lift. Historically, strongmen used this exact lift to put over 100 kg overhead with one arm.
The Mechanics:
- The Start: Clean the bell and place the thumb-side of the handle resting tightly against your shoulder/collarbone. Your elbow must rest firmly on your hip bone or latissimus dorsi.
- The Movement: Keep your eyes locked on the bell. Without pushing the bell upward, begin to rotate and fold your torso forward and down toward your opposite knee.
- The Pocket: As your body drops, your arm stays locked in place relative to your torso. Your body folds down until your elbow naturally detaches from your ribs and your arm is fully extended.
- The Finish: Once your arm is locked out under the weight, you drop your hips into a partial overhead squat and drive through your legs to stand up straight.
Key Benefit: Unlocks maximum thoracic (upper back) mobility and rotation. It allows you to move the absolute heaviest weight possible overhead with a single arm.
Side-by-Side: The Core Differences
To help you decide which lift to program, think of them this way:
| Feature | Kettlebell Side Press | Kettlebell Bent Press |
|---|---|---|
| Primary Action | Active pressing (pushing the bell up) | Passive support (folding your body down) |
| Shoulder Demand | High muscular strength & endurance | High stability, structure, and mobility |
| Thoracic Rotation | Moderate | Extremely High |
| Maximum Weight | Heavy (greater than strict press) | Extremely Heavy (highest single-arm potential) |
| Complexity | Moderate (easier to learn) | High (requires precise timing and flexibility) |
Which One is Right for Your Training?
Choose the Side Press if:
- Your primary goal is to build bigger, stronger shoulders and lateral core strength.
- You want a highly functional carryover to your strict military press.
- You are still developing the advanced hip and spine mobility required for deep rotation.
Choose the Bent Press if:
- You want to test the absolute limits of your single-arm strength.
- You are focused on athletic mobility, rotational core power, and total-body coordination.
- You love the technical challenge of mastering a complex, old-school physical culture lift.
Pro-Tip: The Value of Adjustable Bells for These Lifts
Both the Side Press and the Bent Press require precise, incremental loading to master safely. A 4kg jump between traditional fixed weight kettlebells is often too aggressive when you are working with compromised overhead angles.
Using our Adjustable Competition or Hard Style Kettlebells allows you to micro-load your way up in 1 kg increments. This lets you dial in the exact shoulder packing and hip alignment required for these elite-level lifts without overloading your joints too early.
Ready to build bulletproof shoulders? Grab your adjustable bell, start light, and add these legendary lifts to your routine.
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