Originally Posted by
genejockey
These 6200 levers have the clamp bolt as part of the clamp, that passes through the pivot, and the lever is held onto that with an 8mm nut, NOT an Allen head. I had to buy a long, thin socket to fit it, and then discovered I don't have a socket wrench to fit, so I improvised with a wide straight-bladed screwdriver. If I didn't have to put on the new hoods, I'd have left the levers on the bar, but I'm definitely not taking the levers off the clamps!
I'm using old Shimano clamps (bolt is part of the clamp, like you describe) with Suntour Superbe levers. It worked really well for me to separate the clamp and lever. However, I also have a couple of different 8mm socket tools that will get the job done easily. Do what works for you, man