I have the GV 250, and even though the manual says that the brakes are linked they are not. I have tested them by putting the scoot up on the center stand spinning the front and rear wheel and pulling the left side brake lever, it only controls the rear wheel. The right side lever only controls the front wheel. I traced out the cables and they are not linked. Again this is only on the GV 250, I have no experience with the other models.