Speed Sensor Troubleshooting: Centauri SE and Centauri IIUpdated 6 days ago
Warp Speed, Captain!
What's a speed sensor fault?
Suppose your Ananda M100-powered Vvolt ebike has erratic motor behavior, such as inconsistent power delivery and instances of no power delivered, in addition to faulty speed readings on your display. In that case, you need to adjust the position of your speed sensor, and this guide will help you make it happen!
Correct Orientation
The speed sensor should be 7-23mm from the disc rotor-mounted magnet.
Centauri SE Speed Sensor Adjustment
On the Centauri SE, the speed sensor may be installed inside the non-drive side dropout with an M4 bolt:
Speed Sensor: Centauri SE
If the speed sensor on your Centauri SE is situated as above, and you're noticing faulty behavior, follow the next steps to reposition your speed sensor:
Tools/Parts Required:
- 4mm hex head wrench
- Drill and 7/32" drill bit
- Buton head M5 with a washer (15mm should suffice)
Steps:
- Remove the rear wheel following these instructions.
- With your 4 mm wrench, remove the speed sensor from the dropout plate and gently pull the wire to add more slack.
- Use your 1/4 drill bit to widen the hole on the speed sensor. Drill slowly, and do your best to center the bit in the sensor. We're just widening the hole enough for an M5 bolt.
- Install the speed sensor positioned forward on the back of the lower accessory eyelet. Using a stubby bolt ensures it won't interfere with your accessory bolt!Route the wire outboard of the dropout plate to avoid interference with the wheel!
- Reinstall your rear wheel and check the function of your speed sensor! You should see consistent speed readings on your display and experience the uninterrupted and smooth power of the Ananda M100 motor.
Centauri II
The speed sensor is installed with an M5 bolt inside the lower accessory eyelet on the Centauri II.
If the speed sensor on your Centauri II is situated as above, and you're noticing faulty behavior, follow the next steps to reposition your speed sensor:
Steps:
- Remove the rear wheel following these instructions.
- Use a T25 wrench to remove and reposition the orientation of the disc-rotor-mounted magnet from the inboard to the outboard.
Inboard-mounted disc magnet
Outboard-mounted: note the lip on the magnet
- Reinstall the wheel and test for good function. If you're still having issues, proceed to the following steps.
- With your 4 mm wrench, remove the speed sensor from the accessory eyelet, gently pull the wire to add more slack, and reposition it facing downwards. In rare instances, you may need to install a presta valve nut or a similarly sized M5 spacer to push the sensor outboard.
- Reinstall your rear wheel and check the function of your speed sensor! You should see consistent speed readings on your display and experience the uninterrupted and smooth power of the Ananda M100 motor.
Still encountering issues? Send us a note at [email protected], and we'll get you sorted.