I know what the wear bar looks like in the tread - what does it look like on these smooth 200mm tires?

 

There should be a raised part in the&nbsp\\;tread. You may not be able to see it if your tire is worn. Those tires seem to wear out fast.

 

&nbsp\\;
Seems I got about the same wear out of the 200 on my custom that I got on my 150 on the Heritage...little after 10k miles.

 

On my 200mm&nbsp\\;there is no tread groves&nbsp\\;in the center of the tire - only on the sides. Surely I didn't go through the tread already.

 

You may have, next time you are at the stealer take a look at the new bikes. How many miles are on your bike? I had my rear on for 11k but a responsible person would have probably changed it at 7 or 8k. There are so many variables as to tire wear, proper inflation, riding habits, road surface, hard rear braking, to name a few. A new tire can be had for $150-$200, just be glad you don't need 4.

 

I did just that and you were right. There is supposed to be some tread in the center of the 200 tires. I went through the tread, wear bar and all clear down to smooth tire. Needless to say I got new rubber now and learned a good lesson.