Last year I have installed Shimano BR R550 Canti's on my cross bike. They work great, but I have a problem releasing them in the event of removing a wheel without having to deflate the tire or release the brake cable attachment.
On my older vintage canti's I was able to pull on the straddle cable and easily unhook the cable from the lever. The BR R550's use a link cable and I am unable to free the link cable from the canti levers without releasing the main brake cable attachment. I can remove the wheel without affecting the brake adjustment by deflating the tire.
Is there a method to unhook the link cable without deflating the tire or releasing the main cable attachement?