This track bike sensor mounts externally onto the hub and crank arm completely without using magnets. 

Featuring Bluetooth connectivity, the MLTR30 + MLR30 combo sensors seamlessly track and record your cycling data right on your smartphone app.

MLTR30 Speed soensor

The MLTR30 sensor with a Bluetooth smartphone or bike computer 

Specification:

• Wireless system:  Bluetooth 4.0 wireless technology
• Signal Detection:  G Sensor 
• Battery Type:  CR2032 x 1 
• Operating Voltage:  2.1V -3.3V 
• Operating Temperature:   0˚C-50˚C
• Storage Temperature:  -10˚C-60˚C 
• Battery Life:  Approx. 5-6 months (operating 1 hour per day)
• Max. Speed:  99 KM/H @ 2155mm circumference
• Waterproof :  IPx7
• Fits the hub diameters: 19mm~32mm
• Dimensions and Weight:  30 x 45.7x 9.8 mm/ 8 g (plus rubber sleeve 16 g) 

MLR30 Cadence soensor

The MLR30 sensor with a ANT+ bike computer 

Specification:

• Wireless system:  2.457GHz / ANT+
• Signal Detection:  G Sensor 
• Battery Type:  CR2032 x 1 
• Operating Voltage:  2.1V -3.3V 
• Operating Temperature:   0˚C-50˚C
• Storage Temperature:  -10˚C-60˚C 
• Battery Life:  Approx. 9-10 months(operating 1 hour per day)
• Max. Speed:  99 KM/H @ 2155mm circumference
• Waterproof :  IPx7
• Dimensions and Weight:  30 x 40 x 10 mm/ 10 g