Stages Bike - StagesBike SB20 Firmware Release Notes

Open the Devices page and select the Stages Bike SB20 from the Devices menu.

Select Firmware from the Stages Bike Manager menu to initiate a firmware update.

Date: 11/28/23 (m/d/y)

Current Firmware Release #: v1.12.4

Replace Release #: v1.12.3


  • Improvements for sprint feel.

Bug Fixes:

  • Fix for power spike when power meters wake up from sleep.

Date: 1/10/23 (m/d/y)

Current Firmware Release #: v1.12.3

Replace Release #: v1.12.2

Bug Fixes:

  • Shifting while riding Erg mode no longer causes changes in resistance.
  • Shifting while in Erg mode no longer causes the gearing display of the Stages Cycling app to jump unexpectedly when reverting back to Sim mode.

Date: 11/15/22 (m/d/y)

Current Firmware Release #: v1.12.2

Replace Release #: v1.12.1


  • Button presses are disabled in Erg Mode. Workout scaling functionality moved to the Stages Cycling app version 3.7.0 and newer.

Date: 3/17/22 (m/d/y)

Current Firmware Release #: v1.12.1

Replace Release #: v1.12


  • Improved pairing connection to apps like Zwift while paired with the Stages Cycling app.

Bug Fixes:

  • Large gears should now produce as much resistance as they would in real life.

Date: 7/16/21 (m/d/y)

Current Firmware Release #: v1.12

Replaces Release #: v1.11.2


  • Faster reactions to target power changes while in Erg mode.
  • Gearing improvements.
  • Increased reliability between the app and bike for showing the correct gear.
  • Improved logic of gearing to prevent issues when gear settings are sent to the bike.
  • Improved power meter connection.

Bug Fixes:

  • Changing virtual setups (or the app disconnecting and reconnecting) will no longer cause instances of the bike resetting gearing while riding.

Date: 4/27/21 (m/d/y)

Current Firmware Release #: v1.11.2

Replaces Release #: v1.11.1

Bug Fix:

  • Cadence now works with the updated Peloton app.

Date: 4/12/21 (m/d/y)

Current Firmware Release #: v1.11.1

Replaces Release #: v1.11.0

Bug Fix:

  • Erg mode now behaves as expected when used with Zwift.

Date: 3/23/21 (m/d/y)

Current Firmware Release #: v1.11.0

Replaces Release #: v1.10.3


  • When paired to the bike as the power source, cadence will go to zero when coasting much quicker than before.
  • Prevent Zwift pairing from controlling a bike that is already being controlled by Zwift (if a second Zwift app is opened in the room, it could previously pair to all bikes causing them to drop resistance if already being controlled by Zwift).
  • Improved erg mode target change time.

Bug Fixes:

  • Various minor fixes.

Date: 12/3/20 (m/d/y)

Current Firmware Release #: v1.10.3

Replaces Release #: v1.10.2

Bug Fixes: 

  • Gear changes work when using target resistance (applicable to apps using level control mode, including Fulgaz and TrainerRoad).

Date: 11/17/20 (m/d/y)

Current Firmware Release #: v1.10.2

Replaces Release #: v1.10.1

Bug Fixes: 

  • Gradient delay is disabled and gradient should change quickly.
  • Power usage adjustments to prevent loss of power at extremely high resistance or torque.
  • The bike resets to manual mode only after no pedaling for 15 minutes or power cycling (no longer resets 15 minutes of no target changes).

Date: 11/02/20 (m/d/y)

Current Firmware Release #: v1.10.1

Replaces Release #: v1.10.0

Bug Fixes: 

  • Gradient will change when paired to the StagesBike with ANT.
  • LR Balance when bluetooth is enabled between the bike and power meters was reversed, now all LR balance is reported as LL:RR where:
    • LL: Percent left
    • RR: Percent right

Date: 10/28/20 (m/d/y)

Current Firmware Release #: v1.10.0

Replaces Release #: v1.9.0


  • Refactored firmware, resolved some low-level issues and improved overall efficiency and reliability.
  • Left power meter can now be set to connect to the bike using Bluetooth instead of ANT (useful in wireless signal heavy environments/if experiencing drops to connected applications). Note: This makes the left meter invisible over Bluetooth to other applications.
  • Golden cheetah control support.
  • Brakes are active in Erg mode.

Bug Fixes:

  • Issues with pulling both brakes causing strange behavior have been resolved.
  • Fix for body weight and equipment weight.
  • Android Link app no longer prevents other apps from controlling the bike.

Date: 7/20/20 (m/d/y)

Current Firmware Release #: v1.9.2

Replaces Release #: v1.9.1

Bug Fixes:

  • Cadence no longer spikes/drops in regular intervals.
  • Level mode in Sufferfest works as intended.

Date: 7/09/20 (m/d/y)

Current Firmware Release #: v1.9.1

Replaces Release #: v1.8.3


  • Dual Bluetooth connections Pair to a third party application and manage or view bike properties in the Stages Link App concurrently.

Date: 6/30/20 (m/d/y)

Current Firmware Release #: v1.8.3

Replaces Release #: v1.8.2

Bug Fixes:

  • Reduction in power data latency to applications connected to the StagesBike.

Date: 6/24/20 (m/d/y)

Current Firmware Release #: v1.8.2

Replaces Release #: v1.8.1

Bug Fixes:

  • Gradient no longer needs delay or smoothing in Zwift.

Date: 6/23/20 (m/d/y)

Current Firmware Release #: v1.8.1

Replaces Release #: v1.8.0


Bug Fixes:

  • UI no longer acknowledges gear changes in Erg mode.
  • Default serial numbers are now assigned to all bikes without one, including bikes with replacement boards. These serial numbers will begin with A9.

Date: 6/11/20 (m/d/y)

Current Firmware Release #: v1.8.0

Replaces Release #: v1.6.0

Customization support coming with Link app 2.7.0

Notable Features:

  • Virtual setups—A virtual setup is a group of settings that emulate a bike and that can be changed and applied to any app paired to the StagesBike to create multiple virtual setups. Included in Link app 2.7.0 release.
  • Gearing options—Choose your gearing for riding in Manual, Sim and Level modes.
  • Custom gearing—Set up the StagesBike to match an outdoor bike by customizing the front chainring(s) and rear cassette.
  • Dream Drive—An optimized gearing configuration that offers up to 50 gear adjustments within the largest real-life gear ratio (5:1) and smallest real life gear ratio (1:1).
  • Button configuration options­—Assign functions to each button or choose from presets mapped similarly to common shifting layouts on road bikes. Choose from Shimano, Campagnolo, or custom configurations.
  • Gradient scaling—Adjusts gradient values applied to the StagesBike when received from a controller.
  • Live metrics display—View power, cadence, and left/right balance in the Link app.


  • StagesBike can be paired to as a cadence sensor.
  • Reset function restores bike and user settings to default by pressing and holding the left and right shift lever auxiliary buttons for 5 seconds (behind the shift buttons).
  • Third party button mapping available in public API—allow connected applications to react to button presses on the StagesBike (currently unsupported by any application, integrations coming).
  • User and equipment weight support (coming in Link app 2.8.0).
  • Gradient smoothing and delay can be disabled (coming in Link app 2.8.0).
  • Improved power meter version reporting to the Link app.
  • Power meter temperature reported for logging ambient room temperature.
  • Added bike configuration status (bike knows if it has been previously configured by Link app).

Bug Fixes:

  • Bike will now reconnect to Zwift after completing a Zwift session.
  • Fixed compatibility issues with the Road Grand Tour app.
  • Level mode in Sufferfest now works as intended.

Date: 4/28/20 (m/d/y)

Current Firmware Release #: v1.6.0

Replaces Release #: v1.5.1


  • Improved power meter pairing.
  • Improved power meter version reporting to Stages Link app.
  • Improved speed reporting in Erg mode.
  • Improvements for use with Rouvy, Road Grand Tour, and Kinomap.

Bug Fixes:

  • Resistance for sprinting in Erg mode now decreases after a workout step.
  • Power meter sensor disconnection no longer results in power spikes.
  • Right power meters now appear in the Link App search menu.
  • Changing control apps now allows mode to change.

Date: 4/6/20 (m/d/y)

Current Firmware Release #: v1.5.1

  • Initial public release

Notable Features:

  • 4 Control Modes:
    • Manual
    • Simulation
    • Erg/Target Power
    • Level
  • Power data via Stages L/R Power meters with Bluetooth and ANT+ connectivity.
  • Electronically-controlled shifting and braking
  • 2×11 gear range
  • Pairing capacity to multiple apps and devices
  • Third-party app compatability