I've been riding for a few months now and I've clocked up a few thousand K's. I feel like I'm much more comfortable on the bike now and I also feel that I'm leaning it into corners more. Despite this, there is still say 1cm of unused virgin rubber/chicken strips on each side of my rear tyre. Is this normal for a 250? I know as a general rule a bigger bike will be leaned over more. And I've also observed that bigger bikes do not have quite such a pronounced curve in the rear tyre as 250's do. But in short, should I be leaning it over further, or more to the point, as I grow in confidence even more, will I find that I am using the whole rear tyre? Or is it normal for there to be some unused tread on a rear 250 tyre?