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davidcycle
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My bike is shaking at high speeds
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My bike is shaking at high speeds - September 4, 2008, 05:45 PM

My bike has never done this until I noticed it today. After about 90mph it shakes a little more than it used to and when you are north of 125 it is really bad. Could use some .net wisdom on this one. Thanks guys.

Bike: 2007 gsxr 750
Miles: 12,500
Suspension: Stock
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September 4, 2008, 05:54 PM

stop being so scared
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September 4, 2008, 05:59 PM

a wheel might not be balanced. check to see if one of the weights on your rim came off (assuming there were some on)
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September 4, 2008, 06:19 PM

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stop being so scared


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September 4, 2008, 06:32 PM

You really shouldn't go over 65. That is the max speed limit around here. We at .net always abide by the law.


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September 4, 2008, 06:40 PM

When you say shaking I assume you mean from side to side as felt in the clip-ons. If so I doubt wheel balance is at issue.

How long have you had the tires that are currently on the bike? What are they and what size? Any chance that this additional shaking co-incided with the last tire change? (I'm fishing to see if you put on oversize tire on the back...)

Check the head bearings and put the bike on stands and check to see if both the rims & tires are running true. It's doubtful that you've burned up a wheel bearing but if you have checked everything else it won't hurt to check. Also double check your rear tire alignment while your there for shyts and grins.
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September 4, 2008, 06:41 PM

Quote:
Originally Posted by BR^Rsix
a wheel might not be balanced. check to see if one of the weights on your rim came off (assuming there were some on)
Yeah I just had a tire put on. It does have weights and none appear to be missing (no sticky spots from the glue on the wieghts) so I will have them recheck it to make sure its all good. I am just trying to make sure it's not somehting in my suspension or anything major.
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September 4, 2008, 06:41 PM

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September 4, 2008, 06:42 PM

Quote:
Originally Posted by BR^Rsix
a wheel might not be balanced. check to see if one of the weights on your rim came off (assuming there were some on)
+1

Also, check the head bearings, make sure nothing is loose.

Either way, if I were you I'd have someone look over your bike and not just the front, the rear could cause a vibration as well.


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September 4, 2008, 06:43 PM

oh yeah...check your tire pressure as well. When the tire was installed they could have put too much air in the tire.


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September 4, 2008, 06:48 PM

Quote:
Originally Posted by windblown
When you say shaking I assume you mean from side to side as felt in the clip-ons. If so I doubt wheel balance is at issue.

How long have you had the tires that are currently on the bike? What are they and what size? Any chance that this additional shaking co-incided with the last tire change? (I'm fishing to see if you put on oversize tire on the back...)

Check the head bearings and put the bike on stands and check to see if both the rims & tires are running true. It's doubtful that you've burned up a wheel bearing but if you have checked everything else it won't hurt to check. Also double check your rear tire alignment while your there for shyts and grins.

Yes its side to side and felt in the clip-ons. I have stock size pilot powers on both front and rear. According to the notches on the swingarm, the wheel is aligned properly. (I don't know how to check otherwise) I guess I will just have to put it out of commission until the problem is fixed. Thanks guys
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September 4, 2008, 06:49 PM

Quote:
Originally Posted by deviousR6
oh yeah...check your tire pressure as well. When the tire was installed they could have put too much air in the tire.
They did. It was 39/39 when I left the shop but that has since changed.
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September 4, 2008, 06:57 PM

Quote:
Originally Posted by myblue750
Yeah I just had a tire put on. .
i had this same problem, sounds kinda dumb, but did they put the tire on right? check the arrows for proper rotation, i had a place put the rim AND tire on backwards. about 75 bike started shaking badly. i noticed the tire on backwards the folowing morning after arguing with them for an hour the night before. took it back, they put it on right and i went home. no more problems.


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September 4, 2008, 08:02 PM

Quote:
Originally Posted by myblue750
Yeah I just had a tire put on. It does have weights and none appear to be missing (no sticky spots from the glue on the wieghts) so I will have them recheck it to make sure its all good. I am just trying to make sure it's not somehting in my suspension or anything major.
Do you wheelie much?


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September 4, 2008, 11:30 PM

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Originally Posted by Magic-Rat
Do you wheelie much?
Other than slight power ups when I crack the throttle...no. I dont do wheelies (read my headline haha) Why do you ask?


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