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?

Installation Instructions

• 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