Can't speek for c2 but mine will do it all the time running or stopped with the key on or off & only pulling the front lever.c2...does it only happen when the lever alone is pressed. If u apply the rear brake at the same time u squeeze the lever (lightly, as you say), all is well? Nuthin to do with ABS! The phenom you describe may be an idiosyncrasy of this particular linked design. However, I hope I`m wrong about this cus I would think it would feel freakY. :assassin: