Reply To: GD250R battery
12BS “just about” narrowly fit the GV250 battery tray. GV250 battery tray is the same size as the GD-250. However , 9BS is more than sufficient. Infact, get the YUASA High Performance 9BS battery, other I have used the 9BS on the other Hyosungs without an issue.
I do know that 14BS is factory size for GT- bikes but they have more going on under the hood than the GD does .