OP
@momnipotent2k avatar
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Enthusiast
2008 Vespa GTS 250ie
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Posts: 89
Location: NH
 
Enthusiast
@momnipotent2k avatar
2008 Vespa GTS 250ie
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Location: NH
UTC quote
My rear tire is worn funny on one side - any ideas of what would cause that? Could it be an alignment issue? The tire does not feel loose in any way, but it does feel like there's a bit of a wobble at a certain speed. Thanks!
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@bill_dog avatar
UTC

eeeee bip
BMW R1100RT The Problem Child Kymco Downtown 300 - I'm not the Uber Honda Cub - Scorched Earth Policy
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UTC quote
Bit
Its the camber of the road that does that.

Bill x
@old_as_dirt avatar
UTC

Veni, Vidi, Posti
2007 GTS
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Location: Harriman, Tennessee, Tn
 
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@old_as_dirt avatar
2007 GTS
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UTC quote
you probably have a bearing going bad.

road camber is so minor it won't cause abnormal wear unless your on a banked race track.
@miguel avatar
UTC

Veni, Vidi, Posti
2009 GTV250 (Gone), 2003 Inder trailer (also gone), 2001 BMW R1100RT
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@miguel avatar
2009 GTV250 (Gone), 2003 Inder trailer (also gone), 2001 BMW R1100RT
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UTC quote
How many miles on the tire and it's age?

Have you looked at the wear bars on the tread? How do they look?

Do you ride aggressively or like an old man?

On first blush, it just looks like the tire is worn out and needs to be replaced.

My rear Hiedenau tires only last about 6k miles and I don't ride aggressively.

Miguel
⚠️ Last edited by Miguel on UTC; edited 1 time
@madison_sully avatar
UTC

Veni, Vidi, Posti
MP3 500, GTS 250 (both 2008 MY), 2013 Piaggio BV 350, 2014 Can Am Spyder RT
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UTC quote
Could just be a balance or air pressure problem.
UTC

Molto Verboso
portofino green GTV 300
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Molto Verboso
portofino green GTV 300
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UTC quote
old as dirt wrote:
you probably have a bearing going bad.

road camber is so minor it won't cause abnormal wear unless your on a banked race track.
Wait, isn't there a Nascar track in NH.
@jimc avatar
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The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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UTC quote
Check the swinging-arm bearings and the silent blocks. If the whole engine/transmission is tilted or twisted w.r.t. the frame, this can happen.
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Hooked
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UTC quote
Could be a mechanical issue or out of alignment. Worth inspecting all the moving parts. Could also be riding style (trail braking or accelerating in the corners). Or could be the model and construction of the tire. I've been through several sets of Michelins on the big bike and they do the same thing every time. Squared off in the middle and sawtooth on the side. You can really feel and hear that sawtooth wear when you bank in to a turn.
@dooglas avatar
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Veni, Vidi, Posti
GTS 300ABS, Buddy 125, Buddy Kick 125
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@dooglas avatar
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UTC quote
The tire just looks worn out to me.
UTC

Ossessionato
2018 Vespa GTS 300 ABS- Bianco
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2018 Vespa GTS 300 ABS- Bianco
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UTC quote
Does your notion of "wobble" mean "vibration". I don't see a worn out tire so much as one slightly worn irregularly. Does the tire have "TWI" molded on it. That tire still has mold vent tits on it near the shoulder. See the 2nd one in from the CS base.
All discussion aside, in NH you'll be stopped for winter so simply replace it this winter while the best time is at hand. Not like they cost hundreds of dollars each, like my new PU truck Michelins.

OP/you feel or have someone experienced "feel" the bearing for notchyness or looseness. odds are very strongly in favor of the bearing being OK and you need a tire that rides better.
UTC

Molto Verboso
Vespa GTS 250ie
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Molto Verboso
Vespa GTS 250ie
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UTC quote
Normal wear.
The blocks of rubber deform and wear higher on the leading edge of the forces applied. If you ride like me, block wear is quite dramatic. I now purchase tires that generally do not have blocks, rather have wide strips. The wide strips of rubber deform less but still wear more on the leading edge of highest forces.
Handling is effected by wear. These tires will handle a bit different from when they were new. They may also make a different sound when ridden on their side than straight up.
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2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
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2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
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UTC quote
It looks to me as though that is just tyre wear caused by the road camber. In your area are the roads cambered predominately on the routes you travel? We drive on the left over my side of the pond as you will know. It means the right side of our tyres can wear down a bit quicker than the left side especially if someone lives in an area where the roads are quite cambered towards the sidewalk (pavement as we call it). It will make your bike handle slightly differently and that may be what you can feel.
UTC

Hooked
2007 Vespa 250 GTS
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Location: Nashville, Tn
 
Hooked
2007 Vespa 250 GTS
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UTC quote
I am more comfortable turning left and do so more aggressively and with more throttle. This results in more wear on that side. My 2 cents
Tony in Tn (who runs a car tire on a GTS250)
It is a Michlein 145/70R12, It is taller than the scoot tire and rubbed the fender some. I lifted the fender with some safety wire. The larger size also serves to correct the spedo error.
⚠️ Last edited by tonymarchman on UTC; edited 1 time
UTC

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2018 Vespa GTS 300 ABS- Bianco
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Location: E. KY
 
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2018 Vespa GTS 300 ABS- Bianco
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Location: E. KY
UTC quote
Tony, lets hear what car tire? Road camber is a factor. In my area, eastern KY, virtually every road is curvy. In my county, the two "straights" actually have names. On 4 wheel vehicles the front steering tires wear off on the outside rather fast. On two wheels many of us are more inclined to take a curve with a hard lean-I've never known what human factor cause that but I'm that way too.
I was taught in flight school not to fly by feel in turns as with what we call seat of the pants on the ground.
@juan_orhea avatar
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Molto Verboso
S150 '09, Beo 500ie '08
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Molto Verboso
@juan_orhea avatar
S150 '09, Beo 500ie '08
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UTC quote
Search "darkside" on this forum and you'll find some interesting discussion on this topic, along with the usual snark from the usual suspects. I didn't find a specific car tire mentioned for any scooter though.
UTC

Hooked
2007 Vespa 250 GTS
Joined: UTC
Posts: 441
Location: Nashville, Tn
 
Hooked
2007 Vespa 250 GTS
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Posts: 441
Location: Nashville, Tn
UTC quote
car tire
It is a Michlein 145/70R12, It is taller than the scoot tire and rubbed the fender some. I lifted the fender with some safety wire. The larger size also serves to correct the spedo error.
@jimc avatar
UTC

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The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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@jimc avatar
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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UTC quote
Re: car tire
tonymarchman wrote:
It is a Michlein 145/70R12, It is taller than the scoot tire and rubbed the fender some. I lifted the fender with some safety wire. The larger size also serves to correct the spedo error.
The rear tyre has eff-all to do with the speedo.
UTC

Hooked
2007 Vespa 250 GTS
Joined: UTC
Posts: 441
Location: Nashville, Tn
 
Hooked
2007 Vespa 250 GTS
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Posts: 441
Location: Nashville, Tn
UTC quote
tired
It is a Michlein 145/70R12, It is taller than the scoot tire and rubbed the fender some. I lifted the fender with some safety wire. I also installed a larger front tire which corrected the speedo error. Pls forgive my previous error and any future errors I am sure to display here.













serves to correct the speedo error.
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