Using Magic Buckets with Virtual Ride Platforms

Best for: Athletes who want to free ride, group ride, or race in a virtual platform—while still using Magic Buckets to stay aligned with today’s Low/High/Peak strain targets.

In this guide: The simplest setup options, how to make sure both apps get power data, and what to do when Bluetooth connections are limited.

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Quick Answers

• Your virtual platform (Zwift/ROUVY/MyWhoosh) needs to control your trainer (Resistance/Controllable) and receive Power so your avatar moves.
• Magic Buckets (Garmin/Karoo/Xert EBC) also needs to receive Power data so buckets can fill and guidance can update.
• If your trainer/power meter only supports one Bluetooth connection, use ANT+ to feed power to Garmin when possible—or use a second sensor source (like a separate power meter).

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The Basic Concept: two apps need power data

When combining Magic Buckets + a virtual platform, you’re essentially running two apps at the same time:

1) Virtual Platform — Zwift/ROUVY/MyWhoosh

Needs:

• Controllable trainer: so terrain changes resistance for your trainer
• Power: so your avatar moves
• Optional: cadence/HR

[Screenshot showing sensor setup in Zwift]

2) Magic Buckets Device — Garmin/Karoo/Xert EBC

Needs:

• Power: so buckets fill and targets update
• Optional: cadence/HR

If Magic Buckets isn’t receiving power, it can’t update your progress.

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Recommended Setups

Option A — Garmin + Magic Buckets

Goal: Virtual platform controls the trainer, Garmin receives power for Magic Buckets (via ANT+)

Recommended pairing:

• Virtual platform:
  • Controllable Trainer: required
  • Power: often comes from the trainer; pair dedicated power meter if you have one
  • Optional: HR

[Zwift/ROUVY trainer pairing page: Trainer paired as controllable]

• Garmin (Magic Buckets field):
  • Power Source (ANT+):
    • Best/Recommended: Power meter via ANT+
    • Alternative: Trainer power via ANT+ (pair trainer as power source, not as controllable trainer)
• Optional: Pair HR strap to either device/platform (or both)

Important: If using a virtual riding app & Garmin, be sure to disable/unpair your trainer on your Garmin devices to avoid “two apps fighting” over resistance.

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Option B — Hammerhead Karoo + Magic Buckets

Goal: Virtual platform controls the trainer, Karoo receives power to run Xert EBC screens/Magic Buckets.

Recommended pairing:

• Virtual platform:
  • Controllable Trainer: required
  • Power: often comes from the trainer; pair dedicated power meter if you have one
  • Optional: HR
• Karoo:
  • Power source: Power meter (via ANT+)
  • Trainer Control: DISABLED

To Access Magic Buckets on Karoo:

• Start the ride normally on Karoo
• Tap your MPA or XSS field to open Xert EBC in-ride
• Swipe to the Magic Buckets screen

Related: Magic Buckets on Karoo: Setup + How to Use [link]

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Option C — Xert EBC (Android) + Magic Buckets (no head unit needed)

Goal: Virtual platform controls the trainer, Xert EBC receives power to run Magic Buckets.

Recommended pairing:

• Virtual platform:
  • Controllable Trainer: required
  • Power: often comes from the trainer; pair dedicated power meter if you have one
  • Optional: HR
• Xert EBC: Provide power via one of these methods:
  • Pair a separate power meter (Bluetooth or ANT+ using a compatible dongle)
  • If your trainer supports multiple connections, pair trainer power to EBC as well

Many trainers have limited Bluetooth connections. If EBC can’t connect to the trainer while a virtual platform is connected, you’ll need a second power source (power meter) or to use ANT+ with the virtual riding platform.

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Common problem: “My trainer only supports one Bluetooth connection”

This is the #1 reason setups don’t work on the first try.

Solutions:

1. Use ANT+ for your head unit (Garmin/Karoo) and Bluetooth for the virtual app
2. Use a separate power meter for your second device (Garmin/Karoo/EBC)
3. If available, use a second Bluetooth channel (some Wahoo & Elite trainers support this, many trainers do not offer this option)
4. Use a Bluetooth bridge / hardware solution (advanced; only if needed)

Tip: If you’re using Zwift with virtual shifting, Zwift must have the trainer paired via Bluetooth for proper functionality.

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Best Practice Workflow

Once everything is paired:

1. Start your session in Zwift/ROUVY/MyWhoosh & also start your activity on Garmin/Karoo/Xert EBC
2. Watch your Magic Buckets fill as you ride. Follow the guidance to push hard & recover when needed.
3. If you finish your virtual event (group ride, race, workout, etc.) but still have targets remaining, keep riding a bit to “top up” your buckets.
4. When you're finished, save the ride from the virtual app/platform. 
   • You can either choose to save or discard the activity from Garmin/Karoo/Xert EBC. If you choose to also save the activity from Garmin/Karoo/Xert EBC, Xert will identify it as a duplicate activity so it won't double-count towards your training load, freshness, etc.

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Troubleshooting

Buckets aren’t filling

• Confirm your Magic Buckets device (Garmin/Karoo/Xert EBC) is receiving power data from your power meter or smart trainer
• Confirm you’re recording an activity on the Garmin/Karoo (or that EBC is active and reading sensors)

Trainer Resistance feels wrong

• Confirm only the virtual platform is controlling the trainer
• If your Garmin/Karoo is paired to the trainer: disable trainer control or un-pair your trainer

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Still stuck?

If you tell us:

• Your virtual platform (Zwift/ROUVY/MyWhoosh)
• Your trainer make/model
• Whether you have a separate power meter
• Your device (Garmin/Karoo/EBC)
• Whether you’re using Bluetooth, ANT+, or both

…we can recommend the cleanest pairing plan for your exact setup.

Contact support via email: [e-mail]

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Related Resources

• Magic Buckets Overview
• How to Read the Magic Buckets Data Field [link]
• Magic Buckets on Garmin: Setup + How to Use [link]
• Magic Buckets on Karoo: Setup + How to Use [link]
• Xert EBC (Android): Setup + How to Use [link]