Size of Break disk
 

anyone know the size of the break disk hole? im planning on buying a disk lock and theres so many sizes!

If it a stock disk then it is 10 millimeters.

ah thanks!. does anyone know if the rider's seat is able to come out? not the passenger seat.

There's two screws at the rear of the seat, underneath the padding. Lift up the padding, remove both screws, then tilt the seat foward from the rear, and it'll slide out.
Do you have a manual? Service Manual ~ Owner's Manual.