Barbell 21s
![How To Do 21s [one of the best bicep exercises]](https://img.youtube.com/vi/oq7jXQP3Fk8/hqdefault.jpg)
Alternative Names
BB 21s, BBL 21s
Muscles Worked
Legend
Target Muscles
Secondary Muscles
Stabilizer Muscles
Additional Information
Target Muscles
Biceps
Secondary Muscles
Forearms
Stabilizer Muscles
N/A
Experience
Intermediate (2-3 years)
Equipment
Barbell
Exercise Type
Strength
Exertion
Cardio Intensity
Force
Pull
Mechanic
Isolated
Force Detail
Bilateral
Functions
N/A
Intensity
N/A
Bearing
N/A
Impact
N/A
Utilities
N/A
Find your perfect workout
Answer a few questions and find a workout plan personalized to you.