Bike shakin at 180 kmh

Neka79 · Post by **Neka79** » Sun Feb 04, 2007 10:41 pm

i think u shouldnt be doin 180kph on the road..or advertising it ...hehehe

p.s. its called $1.80...

Slow and wobbly · Post by **Slow and wobbly** » Sun Feb 04, 2007 10:47 pm

Head stem bearings maybe

mike-s · Post by **mike-s** » Sun Feb 04, 2007 11:42 pm

must be stuck in fourth.

Post by **MadKaw** » Mon Feb 05, 2007 7:35 am

wheels out of balance, tyres shagged, steering head bearings, disks warped, or bent frame...

As the max speed limit is 110, it shouldn't be a problem... excluding track use of course..

FrogZ · Post by **FrogZ** » Mon Feb 05, 2007 9:32 am

Defenitely the first three unless you had a bingle you havent mentioned.
I am bettting the front tyre is scalloped, but seeing as the first rule is always what have YOU done to it since it was working properly did you balance it correctly? No offence, just following the first rule of problem solving.

mrmina · Post by **mrmina** » Mon Feb 05, 2007 4:04 pm

maybe the lead balancer fell off ur wheel

Adel · Post by **Adel** » Mon Feb 05, 2007 10:11 pm

Neka79 wrote:i think u shouldnt be doin 180kph on the road..or advertising it ...hehehe

you expect me to b leave that you havent done that kinda speed on the road b4

Slow and wobbly wrote:Head stem bearings maybe

how much m I lookin at if thats the prob

FrogZ wrote:Defenitely the first three unless you had a bingle you havent mentioned.
I am bettting the front tyre is scalloped, but seeing as the first rule is always what have YOU done to it since it was working properly did you balance it correctly? No offence, just following the first rule of problem solving.

Iv had this bike 4 couple of years now and neva had a bingle wether the previous owner did or not I wouldnt know I did drop it twice since I got it but that was stationry and droped it slow cause couldnt handle the weight, like I said it was a slow drop, how ever it only shook at that speed and not any lower, I know I wont b doin that speed too often but just got worried and to answer every 1s question yes I did balance wheels, tyres new but guys some of your coments did help, I will get it lookd at, so I realy mean it, thank you very much

Felix · Post by **Felix** » Mon Feb 05, 2007 11:00 pm

Could it be swing arm bearings? Chain & sprockets?

Adel · Post by **Adel** » Mon Feb 05, 2007 11:51 pm

Felix wrote:Could it be swing arm bearings? Chain & sprockets?

Chain and sprockets new. Ill hav to get the swing arm bearing checkd for sure

cheers

Felix · Post by **Felix** » Tue Feb 06, 2007 12:10 am

You can sometimes adjust them in by screwing the...screw thingy in that homes the bearings in place (after you take the bearing covers off it should be fairly obvious what I mean). Just don't overtighten or you'll kill the bearings. But of course, the only way to know how good they are is visual inspection. But it should be a bit easier on a chain drive bike than when I did the XJ...

FrogZ · Post by **FrogZ** » Tue Feb 06, 2007 6:54 am

If its got new tyres and the balance is right it has to be steering head or swing arm bearings. Check both now.
Put it up on blocks under the frame, get some one to hold the bike, grab the front tyre and pull it back and forth (and as you may not feel movement there) while someone has there finger on the join between the triple and the head stem, is there any movement?
Then do the sam to the back tyre and check movement at the swingarm/frame joint, how about there?
Understand this is VERY rough but will give you an idea.
Is the steering "notchy" (it helps if all cables etc are off)?
But the only true way is the visual (noramlly frigs the back ones looking

).
Or it just could be inherent in the bike, have you done $1.80 on it before?

Im guessing loose or worn steering head bearings now...

Adel · Post by **Adel** » Tue Feb 06, 2007 8:16 am

I will take it to a bike work shop and mention eveythin you guys said cause dont know much about mike machanics my self
neva done $1.80 b4 but done $1.60 and no probs ther, it has to b 1 of the things you guys mentioned so will get it checkd out

cheers for the info

FrogZ · Post by **FrogZ** » Tue Feb 06, 2007 8:47 am

Maybe you can get someone in the Sydney area with more experience to check it for you first? Could save you money being ripped by a shop

Adel · Post by **Adel** » Tue Feb 06, 2007 8:51 am

FrogZ wrote:Maybe you can get someone in the Sydney area with more experience to check it for you first? Could save you money being ripped by a shop

good call, mite ask some of the fellas i go ridin with, yes I know the meanin, Iv bn ripped b4