Road Cycling - Wobble, Wobble, Wobble

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View Full Version : Wobble, Wobble, Wobble


wlevey
03-09-04, 08:30 AM
I have a question related to decending speed and handling.

I have finally been able to get out with my new Lemond Buenos Aris on real roads! While I was out this weekend I got do do some nice hills and some really good decents. I noticed that the bike seemed really sketchy and wobbly compared to my other bike. I had just put new Bontreger RaceX Lite slick tires on it (700x23) in preparation for the good weather.

I am wondering if it is the tires I need to get used to since I haven't used slicks before or if it is how the bike is set up or if it is just that I need to get accustomed to how it handles.

It is really responsive compared to my other bike (Specialized Sirrus Comp).

Could this be a head set issue??

Bill


Hot Pepper
03-09-04, 08:46 AM
Could be a head issue, not a headset issue. Whenever I find the bike unstable on fast decents, it's because i have tensed up. Relax your upper body and it should go away.

wlevey
03-09-04, 09:35 AM
Could be a head issue, not a headset issue. Whenever I find the bike unstable on fast decents, it's because i have tensed up. Relax your upper body and it should go away.


Why then don't I experience it with the other bike?? Are you suggesting that I am just more used to the way the other bike handles and therefor I am more relaxed? I suppose that could be part of it.

Bill


jfmckenna
03-09-04, 09:50 AM
Could be a headset. Is it a large frame steel bike? My large frame steel bike scared the crap out of me once when I hit 52mph it started hi speed shimmy. Clamping the top tube with your knees will stop it or possibly standing on the pedals. After some research I found that large steel frames can be the culprit b/c they are flexy and can resonate violently.

wlevey
03-09-04, 10:13 AM
Lemond sizing - 53cm.

Yes it is steel and my other bike is aluminium!

sch
03-09-04, 12:17 PM
Had same problem with my new Vortex on the Cherohala century a few yrs ago. Tightened up the headset on the road side and it went away. Headset felt fine til curvy downhills at 40mph. Steve

wlevey
03-09-04, 12:31 PM
Had same problem with my new Vortex on the Cherohala century a few yrs ago. Tightened up the headset on the road side and it went away. Headset felt fine til curvy downhills at 40mph. Steve

Sounds like the same situation for me!! The roads in question were a bit rough and curving too!

Thanks, I'll contact the LBS where I got it and have them take a look at it

Bill