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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.





BB-integrated Torque Sensor 1.0

This type of sensoris based on measurement of chain tension, with designated mounting angle, being compatible with standard bicycle chain ring/crank arm. It has dual torque sensing with 24 pulses of signal per cycle.


1Working voltage5V
2Working currentIdd<18mA
3ZTV initial origin voltage1.3V +/-0.15V
450kgf pull force output voltage variation(crank arm length 170mm)2.0V +/-0.15V
5Measurement range1~85N.m
6Torque signal output current Itor (note:1.5kΩ +1uF RC filter output)1mA
7Signal pulse of one full forward revolution ofBB axle24
8The signaloutput pulse duty ratio D50%
9Safety complianceEN14764
10Working temperature-20 - 70℃



*Product profile

中轴力矩-1.0-传感器范例.jpg

Note: standard BB width at 68mm with BB axle length to be customized. This product is granted national invention patent.

BB-integrated Torque Sensor 2.0

This type of sensor is based on measurement of BB axle deflection. With no specific mounting angle required, it can be applied in mid-drive, though the chain ring/crank arm has to be customized. Its dual torque sensing offers 32 pulses of signal per cycle, which ensures signal continuity.


1Working voltage5V
2Working currentIdd<23mA
3ZTV initial origin voltage0.7V+/-0.15V
450Kgf pull force output voltage variation(crank arm length 170mm)2.9V+/-0.15V
5Measurement range1~85N.m
6Torque signal output current Itor (note:1.5kΩand 1uF RC filter output)5mA
7Signal pulse of one full forward revolution ofBB axle32
8The output pulse duty ratio D50%
9Safety complianceEN14764
10Working temperature-20 - 70℃



Note: 4 standard BB widths: 68mm (BB axle length 148mm), 73mm (BB axle length 153mm), 84mm (BB axle length 156mm) and100mm (BB axle length 167mm), while other sizes are customizable.

There are 2 modes of cadence sensing output, one is the dual channel hall signal output; the other is single channel signal output where there’s pulse signal output during forward rotation and no pulse signal output during backward rotation (low-level output)


中轴力矩-2.0-传感器范例.jpg


This product is granted national invention patent.



BB-integrated Torque Sensor 3.0

This type of sensor is based on measurement of BB axle deflection in the left side. With no specific mounting angle required, it features full metal body, high structural strength and compatibility with all types of chain ring and crank arm.


1Working voltage5V
2Working currentIdd<20mA
3ZTV initial origin voltage0.7V+/-0.15V
450Kgf pull force output voltage variation (crank arm length 170mm)2.0V +/-0.15V
5Measurement range1~85N.m
6Torque signal output current Itor 5mA
7Signal pulse of one full forward revolution of BB axle32
8The output pulse duty ratio D50%
9Safety complianceEN14764
10Working temperature-20 - 70℃


Note: 4 standard BB widths are available: 68mm, 73mm, 84mmand100mm, while BB axle length varies at 118mm, 122.5mm, 127.5m and etc.

There are 2 modes of cadence sensing output, one is the dual channel hall signal output; the other is single channel signal output where there’s pulse signal output during forward rotation and no pulse signal output during backward rotation (namely low-level output)



中轴力矩3.0范例.jpg

This product is granted national invention patent.


BB-integrated Cadence Sensor

Its full metal body ensures high structural strength and reliability, while its cost efficiency makes it perfect for mass market application.


1Working voltage5V
2Working currentIdd<15mA
3Signal pulse of one full forward revolution of BB axle32
4The output pulse duty ratio D40%-60%
5Safety complianceEN14764
6Working Temperature-20 - 70


Note: 4 standard BB widths are available: 68mm, 73mm, 84mm and 100mm, while BB axle length is like standard bicycle BB axle and is customizable.

There are 2 modes of cadence sensing output, one is the dual channel hall signal output; the other is single channel signal output where there’s pulse signal output during forward rotation and no pulse signal output during backward rotation (namely low-level output)


中轴力矩范例.jpg


This product is granted national invention patent.



+86-512-53546855-802 / +86-18915792486 / +86-18962677029

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

E-mail:yunhao.wang@kclamberele.com

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