the wobbles
05-08-08, 09:40 PM
#1
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the wobbles
Hey everyone. When i start picking up good speed down hills, i have noticed that my bike wobbles sometimes. I am 6,2 240lbs, so im wondering is it my size, or something about my bike.
05-08-08, 09:46 PM
#3
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My bike is only 3 weeks old, and i have not done anything to "f 'it up at all like hit pot holes or anything.
05-08-08, 09:48 PM
#4
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https://en.wikipedia.org/wiki/Speed_wobble
here you go.
solution to the problem: change weight distribution by either lifting your butt off the saddle or clasping the top tube with your knees.
here you go.
solution to the problem: change weight distribution by either lifting your butt off the saddle or clasping the top tube with your knees.
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Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
05-08-08, 09:54 PM
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the wobs are a phenomenon associated with oscillation- as a speedboarder i had to learn a lot about it. in speedboarding it's mostly dependent on staying relaxed and having strong stable muscles... i've heard about road bikers who brace one of their legs on the top tube of their frame when they're going REALLY fast to help with stability. that said, if you're too heavy for your bike or if your bike is just a POS that could be it.
05-08-08, 10:01 PM
#8
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the wobs are a phenomenon associated with oscillation- as a speedboarder i had to learn a lot about it. in speedboarding it's mostly dependent on staying relaxed and having strong stable muscles... i've heard about road bikers who brace one of their legs on the top tube of their frame when they're going REALLY fast to help with stability. that said, if you're too heavy for your bike or if your bike is just a POS that could be it.
Any bike and any rider weight combination has a natural oscillation frequency. The speed at which it will happen is mostly hit or miss since there are a lot of variables at play.
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
05-08-08, 10:05 PM
#9
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Well im 6,2 240lbs and i have an 08 trek madone 4.5
05-08-08, 10:12 PM
#10
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There was quite a bit of discussion on this topic here:
https://www.bikeforums.net/showthread...3233&highlight=
https://www.bikeforums.net/showthread...3233&highlight=
05-08-08, 10:52 PM
#11
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I am 210 6'1" and had the wobbles over 40 miles an hour on decents on one bike but not on another... turned out to be the wheels and fork combination.. had a Seven E fork with topolino wheels... changed the wheels and now hit 45mph with nearly no wobble.. I am sure if I change the fork I can get rid of the wobble 100%... but then I don't go above 45 much..
05-08-08, 11:05 PM
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6.2 170 currently, same bike, same year without any descending wobble. as posted -> lifting the *** off the saddle or clasping the top tube with your knees, or angling them in a bit... helps with getting a bit more aero. don't death grip it, just go with it and adjust accordingly.
05-09-08, 12:15 AM
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I was in a race on sunday and I got a nasty wobble at nearly 50mph. My life flashed before my eyes, but I remained calm, loosened up, and gripped my top tube, and the wobble went away. Iad to do this descent 3 more times, so I made sure to steady the top tube at the start and didn't have any more issues. I went faster on that descent in the race last year, but on a different bike, and didn't have any wobble issues.
