Name of product:
Hill Topper Electric Bike motor controller circuit board

Water can enter the motor controller and cause it to accelerate on its own, posing a crash and injury hazard to the rider.

Recall date:
August 2, 2018
About 3,350
Consumer Contact:

Hill Topper toll-free at 855-743-3279 Monday through Friday, 8 a.m. to 3 p.m. PT, email or online at and click on Recall Information.

Recall Details


This recall involves Hill Topper Electric Bike Kits with motor controller circuit boards used to convert regular bicycles to electric bicycles. The motor controller circuit boards, 24V/250W and 36V/350W, were sold separately as well as part of the kits. The model numbers KT24WSH-BF08 and KT36WSH-BFZ13504 can be found on the front of the motor control units.  


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.


The firm has received six reports of a rider losing control of his bike when the motor accelerated without rider input, including one reported injury resulting in scrapes and bruises to the rider.

Sold At:

Hill Topper’s Seattle store and online at 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.


Suzhou Kunteng Electronics Co., LTD.


Clean Republic SODO LLC, dba “UKKO,” Seattle, Wash.


Clean Republic SODO LLC, dba “UKKO,” Seattle, Wash.

Manufactured In:
Recall number:
This recall was conducted, voluntarily by the company, under CPSC’s Fast Track Recall process. Fast Track recalls are initiated by firms, who commit to work with CPSC to quickly announce the recall and remedy to protect consumers.