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Steering bearing shot?

Aphex

Aphex

2013-07-11 22:15:00 UTC

Ever since I got the bike it's had a pretty bad head shake on decel from 55mph-45mph. Think the steering bearing might be shot after seeing this, what do you guys think?

I don't hear any clunking or feel anything weird in the steering though.

Blackduke77

Blackduke77

2013-07-12 14:37:00 UTC

Rear wheel alignment.
Chain adjustment / condition.
tyre pressure.
tyre wear.
tyre true to rim.
Tightness of headstock bearings.
Fit of bearing race (headstock) into frame.
Condition of headstock bearing, lube or lack of.

Put the bike up on the center stand....ha..ha

I have a little tyre wobble on my KTM 950 Adventure. The tyre I like to run has not been the roundest / truest tyre I have ever used. The last 2 have been troublesome.
21 front tyre, not a huge slection to chose from.

Have been thinking of trueing the tyre when new with a right angle grinder and spinning the mounted tyre with some sort of jig I can dial in.
I forgot to put my driving glasses on this morning and did so on the fly at 55 mph. I did not like taking both hands off the bars, but I did.

Lowrance

Lowrance

2013-07-12 16:04:00 UTC

I had a similar problem when I bought my Superduke.It would be fine at lower speeds around town but as soon as i got up around 60mph the front would wobble all over the place. Turns out it was a bent steering stem. I'd pull it apart and check it out.

Aphex

Aphex

2013-07-12 22:08:00 UTC

Just back from a ride to lunch and back and had some more for the list.

Wheel Bearings.
Bent / heat warped Rotor.
Dragging front brake pad.

Aphex

Aphex

2013-07-13 04:03:00 UTC

Post missing.

SDNerd

SDNerd

2013-07-14 16:08:00 UTC

Post missing.

Aphex

Aphex

2014-06-12 17:39:00 UTC

Finally found a resolution....

The first set of tyres that came on the bike were shit. Front end had the wobble on decel.

The second set I put on were Q2's, I wore them out and replaced only the rear, front end still had a really bad wobble.

Now I have a set of Roadsmart 2's on here and the issue has been resolved. However I noticed this time the shop (Cycle rider) whom I've had mount and balance every set of tyres on this bike put wheel weights on both sides of the rim instead of putting them in the middle of the wheel. So it could have been a case of the front Q2 being cupped or they did a shit job on balancing the front.

Either way, the shake is gone and I'm much more confident riding the bike hard.