How is the new ComfortRide/ComfortRide Pro suspension different and can it be retrofitted on to older F3 or F5?

Both the original and new F Series models feature all wheel fully independent suspension systems that are field adjustable. ComfortRide and ComfortRide Pro settings have been optimized from the factory for enhanced drive performance and ride comfort. Please consult with your authorized Permobil provider if adjustments to your existing F3 or F5 suspension are required.