Brose error 70: Pedal force outside valid range
The motor controller has detected pedal input force outside the expected operating window. Motor assist cuts out and the bike behaves like a normal unpowered bicycle until the system is restarted. Torque and cadence readings on the display may freeze or read zero while the error is active.
| Drive system | Brose Drive (S, T, C - also used by Bulls, Rotwild, Fantic, BH, Trek Allant) |
| Severity | Dealer needed |
| Keep riding? | Ride with caution |
| Typical cost | Dealer diagnostics typically run 40 to 90 EUR, with a torque sensor replacement usually 120 to 280 EUR including labour, and a wiring repair often under 100 EUR. |
Likely causes
- Rider standing hard on a pedal at startup or while switching the system on
- Faulty torque sensor inside the bottom bracket or spindle
- Loose, bent or corroded connector between the torque sensor and motor controller
- Water or mud ingress into the torque sensor housing
- Damaged pedal axle or bearing distorting the sensor reading
How to fix Brose error 70
- 1. Stop pedalling and put both feet on the ground.
- 2. Switch off the system using the control panel button.
- 3. Wait at least five seconds, then switch the system back on.
- 4. Pedal gently with light force to confirm the code has cleared.
- 5. Inspect the bottom bracket area and motor cable for damage, moisture or loose plugs.
- 6. Take a short test ride without standing on the pedals.
- 7. If the code returns, book the bike in with an authorised dealer for bench diagnostics.
Warranty: A genuine torque-sensor or controller fault inside the two-year warranty period is normally covered, while crash damage, water ingress and worn pedal hardware are treated as wear and excluded.
Typical cost: Dealer diagnostics typically run 40 to 90 EUR, with a torque sensor replacement usually 120 to 280 EUR including labour, and a wiring repair often under 100 EUR.
Frequently asked
Can I reset brose error 70?
Yes, switch the system off with the control panel button, wait a few seconds, then switch it back on and pedal lightly. If the code returns immediately, the bike needs a dealer diagnostic rather than another reset.
Is it safe to keep riding with this error?
No, motor assist is cut and the bike behaves like a normal bicycle with no power, so ride carefully to home or the workshop. Continuing for long periods can mask an underlying sensor fault and risk a sudden loss of assistance.
How much will the repair cost and is it covered?
Expect 40 to 90 EUR for diagnostics and around 120 to 280 EUR for a torque sensor replacement fitted. A manufacturing fault inside the two-year warranty period is usually covered, but water damage, crash damage and worn bearings are not.
Related Brose codes
Manuals and video
Official source: Brose error code table, Pedego dealer service guide
Not an official Brose document. Compiled from workshop experience and public service information; details can differ per system version and bike brand.