Re: Locking Clutch Handle
I recommend Pirate cycle. They seem to have pretty good ones for cheap.
I've had the same failure before. It was pretty funny. I pulled the lever, and after the chink sound I saw the pin and spring fly off like a grenade was fixing to go off.
What I do now to make them more dependable it just stretch a small o ring over the washer on the bottom side of the lever. The o ring cushions the pin when it snaps open, and also takes away the metallic snapping sound. I haven't had a failure since I started doing this to all my clutch levers.