Original Peloton Bike Genuine OEM Right Crank Arm & Pulley Flange Assembly.

You can tell if your Peloton Bike+ right crank arm is bad by checking for physical wobbling, unusual noises, or stripped pedal threads. [1, 2, 3]
Common Signs of a Bad Right Crank Arm
How to Inspect It
  1. Check the crank bolt: Use an 8mm Allen wrench to see if the main bolt holding the right crank arm to the spindle is tight. [1, 2]
  2. Check the pedal threads: Unscrew the right pedal and look at the threads on both the pedal and the crank arm. If the threading looks chewed up or smooth, the crank arm is ruined and needs replacement.[1]
  3. Isolate bottom bracket play: Rock the crank arm to ensure the movement is coming from the arm itself and not the internal bottom bracket or bearing cartridge. [1, 2]