I recently purchased a Geleisen TT-S5 and found it challenging to gather information about the bike and its display settings. After extensive research, I’ve decided to share my findings to help others avoid the same hassle.

To access the settings on your G51 Display, hold the + and - buttons simultaneously until the screen changes to show four zeros. Use the + button to change each zero to a 1, pressing the M button to move to the next zero. Once all four zeros are changed to ones, the settings menu will open.

Here are the optimized settings and their meanings:

• P1: Screen brightness (0002)
• P2: Change between Kilometers or Miles
• P3: Voltage (48)
• P4: Sleep time (0000)
• P5: Pedal assist setting (0001-0005)
• P6: Wheel size (20)
• P7: Speed measuring magnet (0001)
• P8: Top speed (50)
• P9: Zero and non-zero start (0000)
• P10: Driving mode (0002)
• P11: Pedal assist sensitivity (0005)
• P12: Pedal assist start strength (0005)
• P13: Pedal assist magnet type (0012)
• P14: Current limit (18)
• P15: Undefined (41)
• P16: Reset odometer

Tire pressure: 30PSI

I hope this guide makes it easier for you to set up and enjoy your Geleisen TT-S5.

Let me know if you have any questions or suggestions!