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Cassette Integrated Torque Sensor

The torque are integrated into the cassette body, requiring no specific mounting angle. Its 11-pin or 10-pin cable is also easy for system cable routing, featuring simple structure, reliability and easy assembly.


1Working voltage5V
2Working currentIdd<23mA
3Measurement range1~85N.m
4ZTV initial origin voltage0.7V+/-0.15V
550Kgf pull force output voltage variation (crank arm length 170mm)2.0V+/-0.15V
6Torque signal output current Itor(note:there’s a 200Ω internal resistance in output circuit)5mA
7Working Temperature-20 - 90℃



Product profile


塔基范例.jpg


Note: The cadence is measured by sensing the revolution of the freewheel, with pulse signal output during freewheel forward rotation and no pulse signal output (namely low-level output) during backward rotation.

This product is granted national invention patent.




Thread-on Freewheel Integrated Torque Sensor

With the torque sensor being integrated in the thread-on freewheel base, the sensor requires no specific mounting angle, very convenient for assembly.  it has a 10-pin cable for simple system cable routing. Its simple and reliable structure also makes it easy for mass production, while its low cost ensures its popularity in mass market.


1Working voltage5V
2Working current Idd<23mA
3Measurement range1~85N.m
4ZTV initial origin voltage0.7V+/-0.15V
550Kgf pull force output voltage variation (crank arm length 170mm)2.0V+/-0.15V
7Torque signal output current Itor(note:there’s a 200Ω internal resistance in output circuit)5mA
8Working Temperature-20 - 70


* Product profile:


旋飞力矩传感器范例.jpg


Note: The product is undergoing national invention patent approval.




Motor Built-in Cadence and Speed Sensors

The sensor is unique because of its particular magnetic induction mode, with the induction circuit fixed onto the stator of rear hub motor, while the induction magnet disc is attached to the rotating freewheel. Since the freewheel rotation is synchronized with the pedal movement, the pedaling cadence and direction can be told by revolution of the freewheel. In the meantime, what’s unique about this sensing system is that it can tell if the rider is truly pedaling (true pedaling means that the chain is engaging the freewheel and the bike is not freewheeling, so that the pedaling cadence is proportional to the riding speed; while freewheeling happens when the pedaling cadence is lower than the wheel revolution). In this case, we can make sure the motor is providing assist in any gear ratio. This is a highly integrated solution requiring minimum motor modification, making the production very convenient. Meanwhile, its 10-pin cable ensures a cleaner and concise system cable routing.


1Working voltage5V-6V
2Working currentIdd<15mA
3Cadence signal pulse during one full forward pedaling cycle (P1 is the teeth number of front chain ring, while P2 is the teeth number of the engaging freewheel)P1/P2*8(usually 24 pulses)
4The output pulse duty ratio D35%-40%
5Spacing between inductionmagnet disc and induction surfaceat the right end motor cover9-12mm
6Cadence signal output current Itor(note:there’s a 200Ω internal resistance in output circuit)1mA
7Working Temperature-20 - 125



Product profile


电机内置踏平速度传感器范例.jpg


This product is granted national patent for utility models.





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Add:No. 6 Beijing Road, Taicang Development Zone, Jiangsu Province

E-mail:yunhao.wang@kclamberele.com

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