Which bikes are compatible with the Turbo System Lock?

Bikes equipped with the MasterMind TCD or MasterMind TCU include a Turbo System Lock that electronically locks the motor support for the bike. There is also an optional beeper alarm or lights if the bike is moved while locked. You can unlock your bike either with the Specialized app or by entering your PIN on the TCD or TCU using your remote.

We recommend updating to the latest display firmware in order to have a smooth experience.


What is "Alert Light Mode"?

When the alarm is activated, the lights flash in sync with the alarm sound.

It's available for bikes with lights connected (output of 12V/24W, 2A max). Recommended lights are: Supernova M99 Mini Pro-25, Lupine SL X E-Bike, Light & Motion Seca 1800 E-Bike.


What happens if the bike is locked and I lose/change my phone?

You can enter the Turbo System lock PIN using the handlebar remote to unlock the bike. If you forgot your PIN, visit specialized.com and sign in using the same email and password that you use for Specialized app (don’t create a new account). Click on Registered bikes in the menu and select the bike, then tap View Turbo System Lock PIN.

When you get a new phone, download the app and log into your Specialized account. Turn on the bike and go to the Add Bike screen in the Specialized app. Click on the serial number that matches your bike. The app will then prompt you to pair to the bike. Once the bike is paired you will see the option to unlock the bike via the app or view the Turbo System Lock PIN.


What happens if I leave my bike locked for one week?

The alarm can still be triggered and the battery percentage will remain the same as when the bike was turned off.


What happens if the bike is locked and my phone dies?

You can enter the Turbo System lock PIN using the handlebar remote to unlock the bike.

If you forgot your PIN, you can log into your specialized.com account on another device. Click on Registered bikes in the menu and select the bike, then tap View Turbo System Lock PIN. You can then unlock your bike via the handlebar remote. Ensure you select the correct bike if you have multiple registered bikes.


Can I delete my Specialized account and still use the System Lock?

Unfortunately, this is not possible. If you decide to delete your Specialized account, please make sure that your bike is unlocked first.


What happens if I deleted my Specialized account while my bike was locked?

If you remember your lock PIN, you can enter the pin via the handlebar remote to unlock the bike.

If you don't remember your PIN, please follow the steps below:

  • Create a new Specialized account 
  • After account confirmation, open www.specialized.com and log in with your new account, then register your bike with proof of purchase
  • Once registration is successful, open the Specialized app and log in
  • Go through the add bike process and connect to the bike
  • Once your bike is connected, return to the home screen and you’ll be able to unlock your bike


Can I remove my main bike battery when the bike is in a locked state?

Yes this is possible, but it is not advised as this can trigger the beeper alarm and affect the visual lock displays. You won't be able to unlock the bike until the main battery has been reattached.


How do I get to the PIN entry screen on the MasterMind display?

  • Power on the bike
  • Press the + or - buttons on the remote 


Where can I find my lock PIN?

On first connection to the bike, the app auto-generates a 4 digit lock PIN to unlock the bike via the handlebar remote. You can view or customize the PIN by tapping the lock icon on the Specialized app home screen.

You can also find your PIN if you log in to your account on Specialized.com and select View Turbo System Lock PIN under your registered bike.