03 ST 1300-- Strange wear pattern (rear)

[How2]

Hello --

I just picked up this bike and have seen many different tire wear patterns indicating different service problems.

I have never seen this on this Metzler tire (any tire in fact) particularly on the rear. Photo 2 shows the overall wear ,while photo 1 shows the the most severe wear where the steel belts are showing and is also more severely scalloped. Even with with slopping swing arm bearings I haven't seen this issue before.

Btw the front is also showing scalloping but is the same amount of scalloping on both clutch and throttle sides. - will assess the head stock bearings soon

Any experienced wrenches seen this and fix in mind

thanks

H2

 

[billo]

Normal flat spot center suggests leaned over problem. Donuts or skids always to same side. Yeah, that’s a guess from an unqualified mechanic.
(sorry, couldn’t help myself)

 

[maninblack_30]

Regularly riding on a road with (very) steep camber?

Ahh, what billo said, donuts makes sense

 

[motornut]

Check the wheel bearings and swing arm for misalignment. I did run some Metzelers on my ST and destroyed them in about 4000 miles, they were squared in the center and flattened on the side. But nothing like yours. Ps, I did not ride them that hard. They did not feel good to me.
Are those Z-6s?

 

[How2]

Check the wheel bearings and swing arm for misalignment. I did run some Metzelers on my ST and destroyed them in about 4000 miles, they were squared in the center and flattened on the side. But nothing like yours. Ps, I did not ride them that hard. They did not feel good to me.
Are those Z-6s?

Yes those are the 6s