Replacement crank arm for FitDesk Bike Desk 9/16" thread size (RIGHT SIDE)
Fits FDX 2.0 and FDX 3.0
Crank arm length-6.25"
Please note this will not fit the model 4100, 4150 and 3030 under desk cycle. It will fit the model 4100 and 4150 but new pedals will be needed.
A crank removal tool is needed to replace the crank arm.