Bafang KT36WSH-BFZ13504
The Bafang KT36WSH-BFZ13504 is an e-bike controller. Most of what is known about it comes from a recall notice — the hazard, the remedy and which units are affected — rather than from a specification. The few figures of its own that are known sit alongside it.
Last updated: 6 September 2026
Motor and performance
- Electrical rating, matched to this board by its model number
- 36V/350W
“The motor controller circuit boards, 24V/250W and 36V/350W, were sold separately as well as part of the kits.”
Source: cpsc.gov/Recalls/2018/Clean-Republic-Recalls-Hill-Topper-Electric-Bike-Motor-Controllers-Due-to-Crash-and-Injury-Hazards
Identity
- Where the model number is printed
- On the front of the motor control unit
- Manufacturer of record
- Bafang Electric (Suzhou) Co. Ltd., China.
“The model numbers KT24WSH-BF08 and KT36WSH-BFZ13504 can be found on the front of the motor control units.”
Source: cpsc.gov/Recalls/2018/Clean-Republic-Recalls-Hill-Topper-Electric-Bike-Motor-Controllers-Due-to-Crash-and-Injury-Hazards
Source: cpsc.gov/Recalls/2018/Clean-Republic-Recalls-Hill-Topper-Electric-Bike-Motor-Controllers-Due-to-Crash-and-Injury-Hazards
Recalls and fire safety
- Hazard the regulator describes
- Water ingress can cause unintended acceleration
- Remedy the regulator gives
- Stop using it; free replacement board
- Units the recall covers
- Sold January 2017 to June 2018
“Water can enter the motor controller and cause it to accelerate on its own, posing a crash and injury hazard to the rider.”
Source: cpsc.gov/Recalls/2018/Clean-Republic-Recalls-Hill-Topper-Electric-Bike-Motor-Controllers-Due-to-Crash-and-Injury-Hazards
“Consumers should immediately stop using the recalled motor controller circuit boards and kits and contact the firm for a free replacement motor controller circuit board.”
Source: cpsc.gov/Recalls/2018/Clean-Republic-Recalls-Hill-Topper-Electric-Bike-Motor-Controllers-Due-to-Crash-and-Injury-Hazards
“Hill Topper's Seattle store and online at www.electric-bike-kit.com from January 2017 through June 2018 for $50 (24V/250W units) to $60 (36V/350W units) and for between $500 and $800 when sold with the kits.”
Source: cpsc.gov/Recalls/2018/Clean-Republic-Recalls-Hill-Topper-Electric-Bike-Motor-Controllers-Due-to-Crash-and-Injury-Hazards
Recalls (2)
Most recalls cover only certain model years, serials or build dates — view each notice to check it against your own unit.
Models documented with this controller
No model has been matched to this controller yet in the records we hold. That is a statement about our research, not about which bikes use it — and controllers are the part manufacturers name least often.