Technical Support

Advanced Section

• Ultra Motor Removal From Bike
• Biktrix Armageddon Light: Installation Guide
• Swift Programming Guide
• Bafang Protocol Programming Guide
• Programming Throttle on a Bafang Motor
• TSDZ2 Tongheng Motor Kit Programming

See all 10 articles

General Bike Maintenance

• How to Install Pedals
• How to Adjust Quill Stem (Stunner, Stunner-X, 2018 Stunner LT)
• How to Fix Most Shifting Issues (Derailleur Adjustment)
• Adjusting/Aligning disk brakes

Display/Controls FAQ

• C600e Bigstone Display for Stunner LT
• How to troubleshoot brake sensor errors
• Why is my odometer resetting or clock not keeping time?
• How Do I turn on the Headlight
• Complete list of Displays

Miscellaneous

• Magura Vyron Dropper Seapost Manual
• DNM Shock Manual
• Where is the Serial Number on my bike?
• Swapping/Replacing the top-mount on bike frame
• Installing washers in between rear wheel
• Wren Fork: General adjustments

See all 7 articles

Juggernaut Ultra/Ultra FS: how tos

• Testing torque sensor on Ultra motors
• Ultra FS - 2020 Modified Lower-Front Pivot Replacement
• Ultra FS - Lower-Front Pivot Replacement
• FS Pivot Hardware labeles
• Ultra FS: Seat too high

Stunner: How tos

• Change Assist level and Speed limit on 850c/DPC14 (Stunner, Juggernaut HD)

Stunner LT

• Stunner LT Cadence Sensor Replacement DIY
• Stunner LT S830 Display Settings
• Stunner LT Error Codes
• Stunner LT: Debugging
• Stunner LT: M5 Display settings
• Stunner LT: Inconsistent PAS fix

See all 7 articles

Troubleshooting for mid-drive (Bafang BBS02, BBSHD and Ultra motor) ebikes

• BBSHD: Resolve ERR07