QuietKat's new VPO (Variable Power Output) firmware allows users to change the bike output parameters to be compliant where required and unlimited when desired.
WARNING: It is always up to the consumer to verify that they are adhering to the local legislation and set their bike class accordingly.
Power when you want it, classification when you need it. The new VPO(TM) (Variable Power Output) firmware allows users to change the bike output parameters to be compliant where required and unlimited when desired.
QuietKat is paving the way with this new software, which is compliant to the eBike 3-Class classification system that a majority of states have adopted. If using an Ultra Drive motor, the firmware also allows you to switch the motor from torque sensing control to cadence sensing control. The firmware allows you to ride your bike how you want, maximizing your capability no matter where you are.
Watch this tutorial on the new Variable Power Output (VPO) Firmware
QuietKat’s Definition of the Classes
Class 1:
- Mechanical output power limited to 750W
- Throttle disabled
- Motor assistance capped at 20mph
Class 2:
- Mechanical output power limited to 750W
- Throttle enabled
- Motor assistance capped at 20mph
Class 3:
- Mechanical output power limited to 750W
- Throttle disabled
- Motor assistance capped at 28mph
Unlimited:
- Power is limited by the max current limit of the controller.
- Throttle enabled
- No speed limit
How it Works – Class Change
- The bike will ship in Class 2 and Torque based control (if applicable)
- A QR code sticker containing a link to a how-to page will be covering the display
- Displayed on the screen is the current class in the bottom left corner and the throttle status in the bottom right corner. The PAS level (ECO, TRAIL, or BOOST) is centered on the bottom
- To change the class, bring the bike to a complete stop
- Double tap the “i” button on the keypad
- Go into display information by selecting “i”
- Scroll down and up using the “+” and “-” buttons
- Select the option you’d like to change using “i”
- Toggle through the different parameter options using “+” and “-”
- Go back to the home screen by double tapping “i”
How it Works – PAS Mode Change
- Toggle into the display settings (double tap “i”)
- Select display settings (“i”)
- Scroll down to PAS Mode and select “i”
- Toggle to Cadence or Torque based control
Note:
- Only Ultra Drive (Jeep & Ibex) have the ability to use Torque control.
- Hardtail eBikes are only able to use cadence control. However, selecting torque control will have no negative effects
FAQs:
Q: Can I change classes while I’m riding?
A: No, the firmware only allows you to switch classes from a complete stop. This is a compliance issue as well.
Q: My bike doesn’t have the class change firmware, can I upgrade to include this feature?
A: Currently, this feature must be included from the factory.
Q: What trails and paths can I ride on?
A: The firmware complies with the Federal standards for eBike classification. It is up to the user to make sure they are in compliance with the particular area they are riding
Q: Can you still switch the PAS setting (ECO, TRAIL, BOOST) while riding?
A: Yes, users just cannot change the class while moving
Q: How do I tell if my bike has VPO™?
A: Upon boot up, check the bottom left corner of the display. If you don’t see Class 1, Class 2, Class 3, or Unlimited your bike does not have VPO™.
Q: What mode will my bike arrive in?
A: Upon first boot up, the bike will be in Class 2. After changing the class, the bike will boot up in the class it was previously shut down in.
Q: Where can I learn more about local eBike legislation?
A: Please check out peopleforbikes.org