2006-11-22 03:18:20 · 4 answers · asked by Nickname 1 in Sports ➔ Cycling
Yes, but to a smaller degree than when on the ground.
The inertia and the weight of the wheel will have an effect as you change speed and gears. This is not real "rolling resistance" but has a similar, but smaller effect.
If you are on a bike stand and rotate the pedals at 60rpm in the lowest (speed) gear, then change to the highest gear, you will see more "resistance" until the wheel is at its new higher speed. Then you will see some resistance to maintaining that speed and cadence. This will be more than resistance in the lowest gear, and more pronounced the heavier the rear wheel.
2006-11-24 07:48:58 · answer #1 · answered by Rockies VM 6 · 0⤊ 0⤋
You might be asking about the diference in cable resistance, like when you tune a bike on a stand then put it on the ground and ride it, it may feel like it shifts differently than when on the stand.
The resistance in the cables never changes due to being on the ground or on the stand. However the amount of force on the chain being stretched by the action of pedaling on the bike must be overcome when shifting a bike while riding it instead of just spinning the pedals on the stand.
This slower shifting characteristic can simply be tuned out while riding the bike by shifting to the smallest cog on the rear wheel and shifting into a lower gear. If it feels slow you unscrew the barrel adjuster where the derailer cable housing runs into the shifter(a quarter turn or less will usually do it). Now you shift back into the smallest cog, if it doesn't go then you spun the barrel adjuster too much. Screw it halfway back to where it started. It should work properly at that point assuming that your limit screws are properly adjusted on the derailleur and your derailleur hanger is not bent. None of this is true if you have a rapid rise rear derailleur.
2006-11-24 15:40:32 · answer #2 · answered by Nathan 1 · 0⤊ 0⤋
Well, since the wheels are not in contact with the ground resistance due to tire friction will not increase but you are still changing the gear ratio so there will be a momentary increase of torque felt. This is assuming you are changing to a harder gear, changing to an easier gear would have the opposite effect. You can do a simple experiment at home. Simply flip the bike upside down and pedal with your hands while changing gears.
2006-11-22 11:25:13 · answer #3 · answered by Cybeq 5 · 0⤊ 0⤋
Yes. The ground creates resistance. Pick up the back wheel and try it.
2006-11-22 11:22:16 · answer #4 · answered by dundalk1 3 · 0⤊ 0⤋