Replacement crank arm 9/16" thread size (LEFT SIDE)
Crank arm length-6.25"
Fits Model FDX 2.0 and FDX 3.0
Please note this will not fit the 3030 under desk cycle.
A crank removal tool is needed to replace the crank arm. https://thefitdesk.com/collections/replacement-parts/products/crank-removal-tool