Amergin,
I just look good naked anymore LOL ... especially with bicycle parts sticking out ... Gurney hey thanks for telling me how to spell derailer you can tell I am fountain of bicycle knowledge LOL... I can't spell it but I can say that it sure does lock up the back wheel when it falls off and goes through the spokes .. ya stop in one hell of a hurry ... That guy Newton was right about objects in motion tend to stay in motion