StromTrooper banner

1 - 13 of 13 Posts

·
Registered
Joined
·
279 Posts
Discussion Starter #1
I went camping over the weekend, 300 plus miles and on the way home I noticed a bad, no a violent front end wobble, only at 35 mph. A little faster or slower and all is good. Now, I have to have a very relaxed grip or take my hands off the bars to feel it but it is a bit unerving. What could cause this all of a sudden? Only 3,000 miles on tires and nothing visibly wrong.

thanks for the input
 

·
FORUM GODFATHER.....R.I.P. PAT
Joined
·
38,048 Posts
Tire wear can do it. So can loose or worn steering head bearings.
 

·
What Kinda Bike Is That?
Joined
·
5,520 Posts
I went camping over the weekend, 300 plus miles and on the way home I noticed a bad, no a violent front end wobble, only at 35 mph. A little faster or slower and all is good. Now, I have to have a very relaxed grip or take my hands off the bars to feel it but it is a bit unerving. What could cause this all of a sudden? Only 3,000 miles on tires and nothing visibly wrong.

thanks for the input
There is a Google "Custom Search" dialog box near the masthead of this forum. Access it, and type in, "Decel Wobble", "Wee Wobble", or just plain, "My Bike Wobbles".

You will find a host of other riders who have experienced this very same issue. You will also find a host of solutions as how to cure it; make it go away.

Personally, I am very strongly opinionated that, your stem head bearings are too loose. Countless times, this very same topic has arisen on this forum. For those that have been brave enough to check the tension of their steering head bearings, nearly ALL of them have reported that the tensioning nut was just "finger tight", even though the locking nut, was very tight on top of the tensioning nut.

B.L.
 

·
Registered
Joined
·
1,587 Posts
stering head bearing

I wonder how many years or miles it takes for that bearing to get some "slop' in it

a poll might be interesting
 

·
Registered
Joined
·
1,647 Posts
I wonder how many years or miles it takes for that bearing to get some "slop' in it

a poll might be interesting
Most often none at all. They are set too loose from the factory. I had a tire wobble on my DL1000 and put the tapered steering head bearings in and set the tension. The wobble was gone and I have not even felt a hint of it. At first the bearings were a little tight so I loosened them just a bit more and they are perfect.

If you have the wobble with any tire tighten your bearings!

Black Lab is right on this.
 

·
Registered
Joined
·
68 Posts
I Have the same issue with the 2005 Wee project bike I just purchased. I think its the steering head being loose just haven't got around to checking it yet. Let us know what you find.
 

·
Registered
Joined
·
7,437 Posts
The tightness of the steering stem bearing is tough to quantify. My '04 met the spec when the front end was pulled around with a spring scale and there was no wobble to feel when it was on the stand, but that bike gave a new meaning to "adventure" riding when going fast downhill in a crosswind. I tightened the bearing by feel, and the bike became stable and secure. These bearings must not be used as a damper, and must not be tightened so much that resistance to turning is felt, but the bike can't ride right if they're loose.
 

·
What Kinda Bike Is That?
Joined
·
5,520 Posts
My '04 met the spec when the front end was pulled around with a spring scale and there was no wobble to feel when it was on the stand, but that bike gave a new meaning to "adventure" riding when going fast downhill in a crosswind. I tightened the bearing by feel, and the bike became stable and secure. These bearings must not be used as a damper, and must not be tightened so much that resistance to turning is felt, but the bike can't ride right if they're loose.
I would you "step out on a limb" and agree with me that what the manual specs for the proper adjustment, is too loose?

This is what I have been trying to get across to folks. BEFORE anyone spends money on a corrective solution, (new tires, steering dampener, or even on the tapered roller bearing upgrade that I encourage riders to make.), I want people to try applying a little more tension to the stem bearings.

B.L.
 

·
Registered
Joined
·
279 Posts
Discussion Starter #10
I pulled a search and wow, alot of folks with an issue like this. I will check the steering head bearing tightness. I must say though, it seems odd that all is good one minute and then I have a wobble seemingly out of the blue, Only 10K on this DL 1000
 

·
Registered
Joined
·
7,437 Posts
agree with me that what the manual specs for the proper adjustment, is too loose?
Yes, either the spec is low, or it is a poor, imprecise way to measure. There's gott'a be a better, more objective way to get the bearing lock nut correctly set...it is too low for a torque wrench; the friction of the threads is too big of a component of the torque.
 

·
What Kinda Bike Is That?
Joined
·
5,520 Posts
Yes, either the spec is low, or it is a poor, imprecise way to measure. There's gott'a be a better, more objective way to get the bearing lock nut correctly set...it is too low for a torque wrench; the friction of the threads is too big of a component of the torque.
And, if an upgrade is done to tapered roller bearings, you definitely DON'T want to use the Service Manual for determining the correct tension value! At that point, with the tapered bearings installed, you are dealing with a different "animal".

B.L.
 

·
What Kinda Bike Is That?
Joined
·
5,520 Posts
I pulled a search and wow, alot of folks with an issue like this. I will check the steering head bearing tightness. I must say though, it seems odd that all is good one minute and then I have a wobble seemingly out of the blue, Only 10K on this DL 1000
I cannot speak to the DL 1000 at all! I have never even sat on one! But, I have done quite a bit of work to my DL-650, that may be "transferrable" to the DL-1000. At least, the work may provide you with some inspiration to do further research.

Here is one article that I wrote a few years ago: Steering Stem Bearing Replacement / Upgrade « Black Lab Adventures

And, a companion article to go along with it: How I Adjust The Steering Stem Bearings « Black Lab Adventures
 
1 - 13 of 13 Posts
Top