Skip to content
Crucible Fit
  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Pricing
Get Crucible
  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Apple Watch
  • Pricing
  • FAQ
  • Training Guides
Get Crucible
Crucible Fit

A daily functional fitness test for iPhone, Apple Watch and Android. Stations, reps and the Crux, sized to your readiness and your kit.

Download on the App StoreGet it on Google Play

Crucible Fit

  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Apple Watch
  • Pricing

Explore

  • Training Guides
  • Exercise Library
  • FAQ
  • Press
  • Support

Legal

  • Terms and Conditions
  • Privacy Policy
  • Consumer Health Data Notice

CRUCIBLE FIT™ and Crux by Crucible Fit are trademarks of Crucible Fit, LLC.

© 2026 Crucible Fit, LLC. All rights reserved. Apple, the Apple logo, iPhone and Apple Watch are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc. Google Play and the Google Play logo are trademarks of Google LLC.

  1. Home
  2. /
  3. Exercises
  4. /
  5. Shoulders
  6. /
  7. Suspender Biceps Curl

Exercise guide

Suspender Biceps Curl

  • Intermediate
  • Isolation
  • Rep-based
  • Shoulders
  • Upper arms

The Suspender Biceps Curl uses bodyweight and suspension straps to provide constant tension on the biceps while simultaneously challenging core stability. It is highly effective for peak contraction because the resistance remains consistent throughout the entire range of motion.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Suspender Biceps Curl demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Biceps

Secondary

  • Forearms

Equipment

  • Suspension trainer

Setup

  1. Face the anchor point and grab the handles with a shoulder-width, underhand (supinated) grip.
  2. Lean back with your arms fully extended until the straps are taut, keeping your body in a rigid plank from head to heels.
  3. Walk your feet toward the anchor point to increase resistance, or away from it to make the movement easier.
  4. Raise your arms so your elbows are at shoulder height and parallel to the floor.

How to do it

  1. Exhale and curl your hands toward your forehead by bending only at the elbows, keeping your upper arms stationary.
  2. Squeeze your biceps forcefully at the top of the movement when your hands are near your temples.
  3. Inhale and slowly extend your arms back to the starting position using a controlled 3-second tempo.
  4. Maintain a tight core and glutes throughout the set to prevent your hips from sagging or arching.

Form checklist

  • Keep your elbows high and fixed in space; do not let them drop toward your ribs.
  • Maintain a straight line from your head to your heels throughout the entire range.
  • Keep your wrists straight and neutral to avoid forearm strain.
  • Avoid 'kipping' or using momentum from your hips to pull yourself up.

Pro tips

  • Imagine your elbows are resting on an invisible shelf to ensure they stay elevated, which maximizes bicep isolation.
  • Focus on driving your pinky fingers toward your ears at the top of the curl to enhance the peak contraction of the biceps.

Make it harder

  • Move your feet further forward so your body is more horizontal to the floor, increasing the percentage of bodyweight lifted.
  • Perform the eccentric (lowering) phase over 5 seconds to maximize time under tension.

Frequently asked

What muscles does the suspender biceps curl work?
The suspender biceps curl primarily targets the biceps, and also works the forearms as secondary muscles.
What equipment do you need for the suspender biceps curl?
The suspender biceps curl uses suspension trainer.
Is the suspender biceps curl good for beginners?
The suspender biceps curl is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • Arm Double CrossoverIntermediate · biceps, deltoids, and triceps
  • Arms Stretch On A SupportBeginner · biceps, deltoids, and pectorals
  • Band 45 Degrees Biceps CurlBeginner · biceps
  • Band 45 Degrees One Arm Biceps CurlBeginner · biceps

Train it with Crucible Fit.

Every movement in this library is in the app with video and instructions, ready for your own sessions on the days between Crucibles. Your first Crucible is on us.

Download on the App StoreGet it on Google Play

See how a Crucible works