Bobbing in the saddle is nothing to do with "resonant frequencies" or frame materials.
Fair enough. And I know I punch the pedals a bit, so I am the cause of the up and down bounce to start with, but my logic says: Same rider who's cycling at same cadence, on two different bikes and gets two different amounts of bounce - it can't all just be the rider. The bike involved has to be part of the picture. One either enhances the bounce I put in, or the other damps it.
I guess the fix is always the same though - get a more solid posture and more consitent pedal stroke.
Nice tip about the saddle height and I will adjust it some because I think I may be over-extending anyway, even though I set the saddle using the same rule of thumb Dammit quoted - heel on the pedal etc. But as I'm a commuter/getting-around-town rider, I'm riding freewheel not fixed and I stop at red lights, which means I rarely get up to high cadences anyway, so is it worth dropping my saddle too far to help with this problem? Is this just a tip specifically for high-cadence spinning or not?
Fair enough. And I know I punch the pedals a bit, so I am the cause of the up and down bounce to start with, but my logic says: Same rider who's cycling at same cadence, on two different bikes and gets two different amounts of bounce - it can't all just be the rider. The bike involved has to be part of the picture. One either enhances the bounce I put in, or the other damps it.
I guess the fix is always the same though - get a more solid posture and more consitent pedal stroke.
Nice tip about the saddle height and I will adjust it some because I think I may be over-extending anyway, even though I set the saddle using the same rule of thumb Dammit quoted - heel on the pedal etc. But as I'm a commuter/getting-around-town rider, I'm riding freewheel not fixed and I stop at red lights, which means I rarely get up to high cadences anyway, so is it worth dropping my saddle too far to help with this problem? Is this just a tip specifically for high-cadence spinning or not?