Front end wobble - thoughts???

clutchmonkey · Post by **clutchmonkey** » Fri May 09, 2008 12:06 pm

Hey guys,

My bike has developed a bit of a front end wobble when I hit a certain speed. The race head bearings are fine, the tyres themselves are fine so I am thinking wheel balancing.

Getting that checked today but has anybody else experienced this?

at 100mph she is fine, at 110 it starts to feel a bit wobbly at 120 it just wants to throw me off.

Yes Yes I know that I shouldn't riding that quick but am doing a track day in a few weeks so want to ensure she is safe.

Cheers

Pete.L · Post by **Pete.L** » Fri May 09, 2008 1:34 pm

Wheel Bearings, swing arm.
Hopefully it's just the ballancing.
Good luck with that and you'll have to post a report about the trackday to let us know how it went now that you've told us

Pete.l

vtrsteve · Post by **vtrsteve** » Fri May 09, 2008 2:19 pm

OK, tyre might look fine but what make/model is it?? matched to the rear??

have you dropped the forks thru or got a spacer on the rear??

Stormin Ben · Post by **Stormin Ben** » Fri May 09, 2008 3:07 pm

Bet the tyres are Dunlops!!

I had exactly the same issue on mine ON TRACK with 208GP's on but it completely disappeared once I put Rennsports on it
Never had the issue on the road with BRidgestones and Pirelli's on it

vtrsteve · Post by **vtrsteve** » Fri May 09, 2008 3:20 pm

My exact thinking Ben

my first storm was just the same on dunlops at about 100, that was on std suspension but with the forks dropped 6mm and a 6mm shock spacer fitted. Got a bit un-nerving at Donington

and was very scary at Pembrey

Current storm with 6mm dropped and rogered forks, 6mm shock spacer and pilot powers is far more stable than it was with 207GP's

clack · Post by **clack** » Fri May 09, 2008 4:46 pm

my mate had a similar issue with his gsxr, disappeared when he took his tail pack off, running any kind of luggage?

fritz · Post by **fritz** » Fri May 09, 2008 9:44 pm

i got to 120 with 208s on mine and iot was fine untill the unmarked plod caught me!!!!

warby221 · Post by **warby221** » Fri May 09, 2008 9:51 pm

fritz wrote:i got to 120 with 208s on mine and iot was fine untill the unmarked plod caught me!!!!

lol never good that one them blue lights do make you wobbel a bit

sparrowlegs · Post by **sparrowlegs** » Fri May 09, 2008 9:54 pm

I got to 101.5 ok..then the plod got me too....tried to blame in on Richie,but they wouldn't believe me lol

fritz · Post by **fritz** » Fri May 09, 2008 9:57 pm

i was happy with the out come though!!!!!!

when you consider i was sat in the back of the disco and he showed me the footage!!!!

for some odd reason, the first thing i said was "that's a good shot of me"

sparrowlegs · Post by **sparrowlegs** » Fri May 09, 2008 9:58 pm

fritz · Post by **fritz** » Fri May 09, 2008 9:59 pm

sparrowlegs wrote:I got to 101.5 ok..then the plod got me too....tried to blame in on Richie,but they wouldn't believe me lol

your a bad girl!!!!!!

poor richie!! hope you made him some supper!!

fritz · Post by **fritz** » Fri May 09, 2008 10:00 pm

did they comment on your stopping distances?????

sparrowlegs · Post by **sparrowlegs** » Fri May 09, 2008 10:11 pm

Nah..they were just glad to be rid of me lol

clutchmonkey · Post by **clutchmonkey** » Mon May 12, 2008 1:16 pm

UPDATE!!!!

Well took the wheel down to my local tyre place and the mechanic was a bike racer and all round good chap.

He said the wheel was out of balance by about 15g which would be enough to give her a wobble.

Took her home and tested on quiet dual carriageway and it's all good up to about 150. After which I ran out of road :-)

Anyhow all good now and will let you all know about the trackday.

Cheers for the advice guys.