Maintaining Wattage

[junkie_ball]

When on the treadmill the other day i realised i can hold approx. 300 watts quite comfortably on the treadmill for 45 mins to an hour, this got me thinking about my FTP on the bike. It tends to be only around 230 watts.

I used to be a runner but took up cycling around 4 years ago now due to too many injuries when running.

Logic tells me the wattage i put out on the bike should equal to my running if not better due to having gears to help? Has anyone else come across this or am i getting the theory completely wrong here or does the wattage i can maintain running not compare to a bike?

 

[S-Express]

or does the wattage i can maintain running not compare to a bike?

This. ^^^

There's no guarantee the treadmill reading was accurate in the first place. A lot of gym equipment is notoriously poor at accurately tracking things like power and HR. Either way, running and cycling are not comparable in any meaningful sense.

 

[Racing roadkill]

The biomechanics of cycling are so different as to not be comparable in any meaningful sense, regarding Threshold power, to running.