Both Honda scooters I have owned including my current SH300i has linked brakes. I really like them for slow speed braking on automatic scooters. Would it simply be a matter of plumbing to convert my Exec to a linked system? Could, say,the left front caliper be plumbed into the rear hydraulics or would you need to use a pair of 3-piston calipers with just the centre piston being linked into the rears? With the ABS which is fitted to the Exec, would it be impossible to 'overbrake' and lock the front? Could some parts from the linked system that was fitted to the 400 be useable? Has anyone tried this on a 650?