One-Handed Kettlebell Curls Guide | Bicep Strength

Learn how to perform one-handed kettlebell curls with proper form to build bicep peak and forearm strength. Expert tips for effective arm training.

How to Perform

  1. Stand with your feet shoulder-width apart and hold a kettlebell in one hand by the handle with an underhand grip.
  2. Position the kettlebell at your side with your arm fully extended and your palm facing forward.
  3. Keep your elbow tucked tightly against your ribcage to ensure the bicep does the majority of the work.
  4. Curl the weight toward your shoulder by flexing at the elbow while keeping your wrist neutral and firm.
  5. Squeeze the bicep at the top of the movement for a full second before starting the descent.
  6. Lower the kettlebell slowly back to the starting position under full control until your arm is straight.
  7. Complete the set on one arm before switching the weight to the other side to maintain consistent tension.

Common Mistakes

  • Swinging the hips to create momentum for the weight
  • Allowing the elbow to drift forward or away from the torso
  • Letting the wrist collapse backward under the weight of the bell
  • Failing to reach full extension at the bottom of the rep

Muscles Worked

Primary movers

  • Biceps

Stabilizers

  • Forearms
  • Brachialis
  • Core

Related Guides

Biceps · Arms