The Sunny ASUNA 4100 Indoor Cycling Bike comes with a 40lb chrome flywheel. This is a heavy-duty flywheel that will stand the test of time. The heavier the wheel, the smoother the ride, and 40lbs are among the heavier flywheels available. Sunny Health and Fitness have also made the flywheel a funky, vibrant color!
The resistance mechanism uses a small felt pad against the flywheel to increase or decrease drag. This felt pad is relatively sturdy but will probably need replacement at some point (can be ordered direct from the supplier).
The pedals provided with the ASUNA 4100 are reversible. If wearing cleats is your preference, there are SPD clips on one side of the pedal. If, however, you prefer to wear regular trainers, an adjustable foot cage comes on the other side of the pedal. These options reduce the risk of slippage when cycling and help improve power output.
The Sunny ASUNA 4100 indoor bike comes with a fully adjustable seat, adjusted up and down and forward and aft. This allows most users to experience the most comfortable seating position throughout their workout.