Check out this link.... the guy discribes it pretty well...
http://bikepoint.ninemsn.com.au/clubhouse/ExpertAnswer.asp?ID=118172&Type=Tech
Out of the light...into the shadows....
http://bikepoint.ninemsn.com.au/clubhouse/ExpertAnswer.asp?ID=118172&Type=Tech
Out of the light...into the shadows....
