Road Cycling - Cadence bounce

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.




View Full Version : Cadence bounce


MrEWorm
06-07-04, 09:18 PM
When I started paying attention to cadence, I was doing about 70 RPM. It has taken me awhile to get comfortable at a cadence of low 80's. I notice that when I do get up over 95 I develop what I call "cadence bounce". It gets so bad, that if I was Dolly Parton, I would have two black eyes. Any idea how to get rid of the bounce?


ShinyBaldy
06-07-04, 09:41 PM
When I started paying attention to cadence, I was doing about 70 RPM. It has taken me awhile to get comfortable at a cadence of low 80's. I notice that when I do get up over 95 I develop what I call "cadence bounce". It gets so bad, that if I was Dolly Parton, I would have two black eyes. Any idea how to get rid of the bounce?

ride more often at higher cadence? use lower gearing

SchreiberBike
06-07-04, 10:01 PM
You may have your seat too high - have someone watch your hip bones when you are riding to make sure they are not tilting side to side as you pedal.

You may have your seat too low - your legs may be impacting your upper body causing all that bouncing.

You may just need some more time.


catatonic
06-07-04, 11:02 PM
I used to have a huge problem with cadence bounce as well, but I found something out over time:

if your not used to a high cadence, usually once you get around 90rpm or higher, then you will have a certain amount of inconsistant pedaling, and that leads to your bounce.

What I found out was often in our high speed we actually strighten our leg out, and that lifts us off the seat. Of course this is at 6 and 12, where your starting to use your other leg on the downstroke, but are still putting downward force on the other pedal despite being out of that part of the stroke. I noticed this when I chose to only use forward and backward strokes as my power instead of down (i ahve clips so I can do it to some extent). What I found out was I was pulling cadences faster than I thought I could do. Since then I have focused more on a perfect circular motion at my current cadence instead of just pushing for that 100rpm+ cadence.

redfooj
06-08-04, 12:57 AM
second the seat suggestiron - check your height

also get the correct fore-aft positioning, also

gradually build up to a fast cadence... dont just drop it in a low gear and start cranking... you should get a smoother transition... oh, and ride! practice is best... my comfortable max has increased by 30rpm

khackney
06-08-04, 06:31 AM
"Bounce" can also be from not pedaling in a smooth circular motion. At higher cadence lower load speeds the tendency to pump up and down becomes more pronounced. That is why riding fixed is a great way to learn smooth spinning. The pedals will pull your feet through the bottom of the stroke as you learn the spin. Not that you won't or can't bounce on a fixie; you can. It takes practice and concentration to gain rpm.

Fixed or not think about keeping pressure on the pedals all the way around. Don't worry about how hard your pushing just try to keep a little tension on the crank with both feet all the time. You'll get it.

MikeR
06-08-04, 12:26 PM
When I started paying attention to cadence, I was doing about 70 RPM. It has taken me awhile to get comfortable at a cadence of low 80's. I notice that when I do get up over 95 I develop what I call "cadence bounce". It gets so bad, that if I was Dolly Parton, I would have two black eyes. Any idea how to get rid of the bounce?It takes practice. Go to an easier gear and increase your cadence until you start to bounce. Then back of a little bit until you are not bouncing. Concentrate on making smooth circles - the old scraping mud of you feet. After a few practices you will notice your pre-bounce cadence going up.

lotek
06-08-04, 01:02 PM
Rollers.
long periods of time on rollers with high cadence will give you a nice smooth
spin.

Marty

bitemail
06-08-04, 01:21 PM
if you are not pedalling in smooth circles you will bounce like child in a bouncy castle.

p38karl
06-09-04, 12:27 AM
Think of pedalling in small circles.