In addition to my new MCS, I have 5 bikes - 1 HD and 4 Brit bikes. I've been using a detail brush like the one below for eons on the bikes - it works wonders. I also found that, when used in conjunction with a wash mitt, it works extremely well in removing the brake dust off my Web Spoke 17" wheels.
It's very soft and pliable, and it's a big sucker - probably close to 4" in diameter, but it totally collapses when shoved into tight spots. It has a rubber tip, and no exposed metal parts, so you don't have to worry about scratching the painted surfaces.
Just thought y'all might wanna know.. (especially those who also own a bike).
$20.00
http://www.hawg-wash.com/ezdetailbrush.html