Article

🛑 Understanding Ebrake Cutoffs

Your kit's ebrake cutoffs instantly kill motor power the moment you squeeze a brake — your essential safety net on a cadence-based system. Here's how they work.

July 12, 20261 min read

🛑 Understanding Ebrake Cutoffs

Bafang brake levers with built-in e-brake cutoff sensors

Your kit includes electronic brake (ebrake) cutoffs — either brake levers with a built-in sensor or magnetic sensors that clip onto your existing hydraulic brakes. The moment you squeeze a brake, the sensor instantly cuts motor power, no matter what the throttle or your pedaling is doing.

Why they matter: because PAS is cadence-based, the motor keeps pushing for a moment after you stop pedaling. The ebrake cutoff is your safety net — it guarantees the motor lets go the instant you reach for the brakes. We strongly recommend riding with them connected at all times. Hydraulic-brake riders should use the magnetic sensor style, since hydraulic levers don't have a built-in switch.

If your brakes feel like they are cutting power erratically, a stuck or shorted ebrake sensor is usually the cause — see Error 22 and the power-loss checklist below.

Was this article helpful?

Related Articles

🔋 Battery Care and Safety Instructions

Our packs are built with premium name-brand cells, and a few simple habits keep them safe and healthy for years. Here are the do's and don'ts.

🔋 Battery Storage

Storing your ebike for a while? A little prep — charging to 40 to 60 percent and keeping the pack cool and dry — dramatically extends its life.

🔌 Charging Your Battery & Charger Instructions

Charging your Bafang pack is genuinely easy — the smart charger and built-in BMS stop automatically when it's full. Follow these steps for years of reliable range.

⚠️ Error 04 / 05 — Throttle Error

Error 04 or 05 means the throttle isn't communicating with the controller and won't work. This guide walks you through reseating, isolating, and replacing it.

⚠️ Error 06 — Low Voltage Cut-Off Protection

Error 06 means your battery voltage dropped too low and the system cut power to protect the pack — usually just a sign it needs charging. Here's how to clear it.

Back to Operation & Care