Purchase additional Kratos flywheels here. By default, the Kratos unit ships with Medium and XL flywheels, covering a broad range of applications and individual sizes/strength.
Smaller flywheels are quicker to spool up and use with low intensity in applications such as rehab and recovery, or for smaller, untrained individuals.
Please allow 4 weeks for flywheels to ship.
Size (Weight) Inertia (kg*m^2)
XL (11.94lbs) = 0.0617
L (8.3lbs) = 0.0297
M (5.88lbs) = 0.0149
S (4.16lbs) = 0.0074
XS (2.65lbs) = 0.0066
