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iGPSPORT Help Center
Quick Start Guide
Tire / Wheel Size Chart
Compatible APPs or Devices with C61 / SPD61
Cruise time of C61 or SPD61
Why should I equip a a speed sensor?
What's the difference between SPD61 and C61?
How many speed sensors can a bike computer store?
Installing Speed Sensor SPD61
Installing Cadence Sensor C61
Replacing a New Battery for My Cycling Sensors
Get help with an issue
My Cadence Sensor C61 will not connect with My Cycling computer
My cadence sensor C61 Can't Connect with My Devices From Other Brand.
My Speed Sensor SPD61 / C61 will not connect to My Cycling computer
My SPD61 / C61 is not providing accurate information