I just put a rack on a bike, I decided to go with the Topeak for their quick release system.
The only problem I encountered is that I got the Super Tourist which is a fantastic frame but it has double rails on either side which makes it a bit wide. This means that my garment bag doesn't quite fold over the top of it as designed. I'd probably have been better off with the explorer.
The quick release is super nice when I go with just the trunk bag on top. They even make a quick release milk crate
