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Zwift how to set your trainer at certain watts

Zwift: How to Set Trainer at Certain Watts

Zwift offers many training features to help cyclists hit specific power targets and achieve structured workout goals. But how do you set a trainer at certain watts? One popular feature for power control is ERG mode. A setting that allows riders to maintain a consistent wattage throughout a workout. This guide will walk you through how to set your trainer at a specific wattage in Zwift and explain what ERG mode in Zwift does to help you stay on track during training.

What Is ERG Mode in Zwift?

ERG mode is a feature that controls the resistance on your trainer to keep you at a set wattage. No matter the terrain or your speed in the virtual world of Zwift. This is particularly useful for intervals, as it holds you steady at your desired power output without constant adjustment. Making it ideal for structured workouts and interval training.

How to Set Trainer at Certain Watts in Zwift

If you’re looking to set your Zwift trainer at a specific wattage for a workout, here’s how to get started:

  1. Start Your Zwift Workout: Choose a structured workout from Zwift’s workout menu that includes power targets, or create a custom workout if you have specific wattage goals in mind.
  2. Enable ERG Mode: ERG mode will automatically activate when you begin a structured workout that includes power targets. You’ll see a target wattage displayed on the screen, and Zwift will adjust the resistance to keep you at that power level.
  3. Follow Zwift’s Cues: Zwift will prompt you to hit specific wattages during each workout phase. Thanks to ERG mode, you don’t need to worry about gear shifting; keep pedalling, and Zwift will adjust the resistance to match the target wattage.
Zwift how to set your trainer at certain watts

Tips for Using Zwift ERG Mode

  • Warm-Up Gradually: Start your workout with a proper warm-up to prepare your muscles, as ERG mode will hold you to the exact wattage, which can be challenging if you’re not warmed up.
  • Stay Smooth: Aim for steady, smooth pedal strokes in ERG mode to help Zwift maintain the set wattage without spiking or dropping.
  • Disable ERG Mode if Needed: ERG mode is great for controlled efforts, but if you prefer a natural feel or want more control, you can disable ERG mode mid-workout by toggling the setting on-screen.

Why Mix ERG Mode with Normal Riding?

While ERG mode is useful for maintaining specific wattage targets, mixing in regular, non-ERG rides is important. ERG mode can be very challenging at high intensities and may feel restrictive, especially during all-out efforts. Riding outside of ERG mode also promotes a natural pedalling style and enhances responsiveness, which can be compromised if you always train in ERG mode. For a balanced training approach, alternate ERG workouts with free riding to develop versatility and improve your overall cycling skills.


Setting your trainer at a specific wattage in Zwift, using ERG mode, can make training simpler and more effective. With ERG mode’s ability to hold you steady at set power levels. Zwift provides an efficient way to work toward your fitness goals without constant adjustments. So next time you’re on Zwift, enable ERG mode, set your watts, and enjoy a focused, effective workout.

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