We have something similar on one of the Bullitts I use for work. It makes a huge difference to how the bike handles. All of the Bullitts without it suffer from the front wheel flapping all over the place quite alarmingly at any sort of speed. The one that has the stabiliser is much more confidence inspiring! I have no idea what brand the one we use is but I'd definitely recommend something along those lines.
We have something similar on one of the Bullitts I use for work. It makes a huge difference to how the bike handles. All of the Bullitts without it suffer from the front wheel flapping all over the place quite alarmingly at any sort of speed. The one that has the stabiliser is much more confidence inspiring! I have no idea what brand the one we use is but I'd definitely recommend something along those lines.