bridgestone BT 23

[kylron]

Just had to change the front BT 23 on my gen 1 as it had worn  on the right hand side.it had quite a pronounced step between the harder centre compound and the softer side tread,I would say around a 3mm difference which was really noticeable turning right.
The tyre had 6000m on it and I ran it at 36psi.
Has anyone had anything similar with this tyre or an idea what could be causing it.
Checked wheel alignment and all seems good.