Can't save this thread, too much misinformation. Get yourself a copy of "A Twist of the Wrist II".

Twist of the Wrist 2Thinking about it this summer.Any recommendations positive or negative requested. Thanks Kev
Applying the rear brake will tighten the turning radius of the bike (works the same for cars). It's a damn useful skill to possess. Even more useful, however, is knowing not to ride beyond your line of sight, and leaving yourself a healthy reserve of tire should you need to lean more for whatever reason.
"look farther, lean harder"
Be smooth.
I wouldn't recommend the "lean harder" approach unless you know what you're doing. Even the pros go in "hot" and know there isn't any lean left, so they run wide and lose a second in a turn.
Learn your limits in baby steps in a controlled constant situation and know what the bike can do, then back it off 15% in unknown situations when a turn can "suddenly tighten".
I like the poster who said to leave more lean angle on roads you're not familiar with. There is no such thing as a tightening radius on the track, more like a double apex. .
You have a fellow rider with a serious question that he does not know and most of these post are jokes or making fum of the OP, why not make some real constructive sugggestions and if you cant do that why post anything?
This forum wouldnt exsist than, thats why.