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Cadence / bouncing

Skippy2309Skippy2309 Posts: 426
simply how the hell do I stop myself from bouncing around on the saddle :evil:

Club run was cancelled so got the rollers out and did a nice little 20minutes doing a minute at high cadence (need to plug my garmin in for the stats) followed by a minute at a lower cadence, was in 53x11 for the first set. then dropped down to a lower gear 53x13 / 14 maybe for another sprint, as at this point I was more thinking about the cadence than speed in the end I was doing 39 x something lol and just spinning and was still bouncing out the seat. I looked down and caught my speed at 24mph so must have been a good speed but the bouncing worries me :?

was nice to do a little spin session (let go of the wall quite a lot) no HR data but it didnt feel strenuous at all. Feet hurt today but were fine yesterday as were my hands.... :roll:
FCN: 5/6 Fixed Gear (quite rapid) in normal clothes and clips :D

Cannondale CAAD9 / Mongoose Maurice (heavily modified)

Posts

  • rick_chaseyrick_chasey Posts: 65,272 Lives Here
    It's quite tough to pedal a very high cadence without bouncing.

    However, if you're bouncing quite a bit, try raising your saddle a little.
  • HerbsmanHerbsman Posts: 2,029
    Sounds like you need to relax more and hold yourself steady.

    Try riding fixed downhill for a few months, you'll soon get the hang of it.
    CAPTAIN BUCKFAST'S CYCLING TIPS - GUARANTEED TO WORK! 1 OUT OF 10 RACING CYCLISTS AGREE!
  • Skippy2309Skippy2309 Posts: 426
    not done that for a while :P great fun doing so but i am lucky in having strong legs so i can control my descent - although i remember doing a hill in kingston when I first rode fixed my legs felt like they were going to come off
    FCN: 5/6 Fixed Gear (quite rapid) in normal clothes and clips :D

    Cannondale CAAD9 / Mongoose Maurice (heavily modified)
  • McBain_v1McBain_v1 Posts: 5,237
    Watch track cyclists... 160rpm+ with no bouncing. A fixed wheel teaches you that discipline. Get a bike on a turbo and practice would be my advice. There's a few spinning workouts that you can try, most involve spinning up your leg speed by 5rpm per minute (starting at 70rpm) for a set period. A warm up would look like this:

    70rpm (1 minute)
    75rpm (1 minute)
    80rpm (1 minute)
    85rpm (1 minute)
    90rpm (1 minute)
    95rpm (1 minute)
    100rpm (1 minute)
    105rpm (1 minute)
    110rpm (1 minute)
    115rpm (30 seconds)
    120rpm (30 seconds)

    After that you next step would see you start at 85rpm and get you legs up to 135rpm or so.

    Of course this only really works if the bike on your turbo has a computer that reads pedal cadence :wink:

    What do I ride? Now that's an Enigma!
  • TheBulletTheBullet Posts: 58
    I have a very high cadence and if I start bouncing too much it's normally because I'm mashing down on the gears as if my legs were pistons. To combat this I try pedalling in circles in a smooth motion. Might help though it does feel quite unnatural to start with.
    Winners never quit and quitters never win!!
  • meanredspidermeanredspider Posts: 12,337
    In Spinning classes they tell you that you bounce if there's not enough resistance on your bike (ie the pedals are turning too easily). There must come a point where you are applying so little force to the pedals that pedalling itself is ineffective (you're mostly just churning your legs). To cure the problem, maybe you just need to change up a gear.
    ROAD < Scott Foil HMX Di2, Volagi Liscio Di2, Jamis Renegade Elite Di2, Cube Reaction Race > ROUGH
  • Practice. Riding a fixed bike at a track is a good way to force you to learn to do it. I was no spinner until a winter at the veloidrome, 150rpm is feasible without bouncing around. The trick is to use your adductors to pull up and help pull your leg up and over the top of the stroke, at least that's what works for me.
  • Skippy2309Skippy2309 Posts: 426
    cheers guys, will have to get my fixed gear out for some runs.

    I am not sure about the not enough resistance, as i was pushing 53x11 at the time which does strike me as strange. The garmin was showing me running out at 110-120rpm which is not as fast as i thought.

    will try and do some cadence work tomorrow morning.
    FCN: 5/6 Fixed Gear (quite rapid) in normal clothes and clips :D

    Cannondale CAAD9 / Mongoose Maurice (heavily modified)
  • jgsijgsi Posts: 5,038
    Skippy2309 wrote:
    cheers guys, will have to get my fixed gear out for some runs.

    I am not sure about the not enough resistance, as i was pushing 53x11 at the time which does strike me as strange. The garmin was showing me running out at 110-120rpm which is not as fast as i thought.

    will try and do some cadence work tomorrow morning.

    err?
    If this cadence done on resistance less rollers, then I understand.. quoting what gear you are in is pretty meaningless but no less impressive of course for an internet forum :wink:
    You havent siad why you want a cadence lets say over 110..? If you are bouncing at that , then yes you need maybe to have some tuition.
    I can think of bertter things to practise though such as creating a really smooth pedal stroke style but using real world gearings and effort levels..
  • Eddy SEddy S Posts: 1,013
    Skippy2309 wrote:
    cheers guys, will have to get my fixed gear out for some runs.

    I am not sure about the not enough resistance, as i was pushing 53x11 at the time which does strike me as strange. The garmin was showing me running out at 110-120rpm which is not as fast as i thought.

    will try and do some cadence work tomorrow morning.
    Pedalling at high cadence is a technique you have to learn and practice and then practice to perfect. Your posts gives the impression that you automatically expected be able to do it!

    Riding rollers in high gears is not the answer. As JGSI says, try some real world gears. All you are doing with 53x11 is mashing and forcing a big gear, rocking your body around, fighting the gear. There is no smoothness or fluidity in your pedal stroke. Try again with a gear that broadly equates to a 72 – learn to control and sustain that at 150 - 170 rpm.

    Watch the body, watch the technique - http://www.youtube.com/watch?v=sVbwngNoHm0
    I’m a sprinter – I warmed up yesterday.
  • Skippy2309Skippy2309 Posts: 426
    I expected to do it as I used to be able to do it..... before I trashed my knee at work I could spin on a 50x15 fixed gear at 35mph with full panniers with very little effort. i expected the technique to be the same, although I was expecting to struggle with the strength work - the strength side of things seems fine just the technique is needing the work.

    I can still push the big gears without too much fuss, I just cant get the cadence smooth at higher rpm's, I dont want to push myself and bounce around the saddle and lose control... hence why I asked - nothing wrong with wanting to be able to spin smoothly is there.
    FCN: 5/6 Fixed Gear (quite rapid) in normal clothes and clips :D

    Cannondale CAAD9 / Mongoose Maurice (heavily modified)
  • nferrarnferrar Posts: 2,511
    Eh? spinning at 35mph with panniers taking very little effort?, I call BS assuming you mean actually outside on the road (if you meant on rollers then panniers are hardly relevant :p )
  • kieranbkieranb Posts: 1,674
    15x50 is about a 90inch gear, and 35mph means approx 130rpm I estimate. Doable for sprint effort (especially given the panniers) but 'with little effort'? maybe a steep downhill?

    My record was 200rpm downhill on my MTB in very low gear, only held it for a few seconds as the hill run out.
  • You are called Skippy & worry about bouncing :roll: :)
  • dennisndennisn Posts: 10,601
    I would suggest that when you get into high cadences that you start really thinking about pushing your toes forward(not down). Force your toes, just after they go over the top, toward the front of your bike. Try to avoid pushing down.
  • FWIW I find that I start bouncing at about 120rpm and then at higher rpm I stop bouncing - have got to 160 on my road bike (on the road, downhill, just for the hell of it :-)). I remember reading somewhere that the bouncing is because your muscles haven't been 'trained' to relax in between strokes at such high cadences, as they would normally be doing. Don't know if this information is of any use whatsoever...
  • dennisn wrote:
    I would suggest that when you get into high cadences that you start really thinking about pushing your toes forward(not down). Force your toes, just after they go over the top, toward the front of your bike. Try to avoid pushing down.

    +1 for that explanation dennis. This is exactly how I ride a track bike for most of the time.
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