Garmin Rally Rk200 Single-sensing Power Meter  

Your next power move starts at your pedals. Rally power meters are designed to seamlessly transfer between bikes to provide advanced cycling dynamics to help you ride more efficiently and improve over time. Rally dual sensing power meters (RK200, RS200 and XC200) measure total power, cadence, left/right balance and where in the pedal stroke you’re applying power. Rally single-sensing (RK100, RS100 and XC100) provide total power and cadence. What’s more, the transferable spindle can be installed in the pedal body kits to keep cyclists riding year-round.