Reply To: Hello from USA.
Click the “Add Media” botton that is on top of the white reply box as you are typing and please let know if you get any errors ? It should work fine.
Upgrades, take a look at the shop (click shop) at the top of the site and each product has about 2 pages long of descriptions on each, some customer pictures and their reviews so you get an idea of their real world experiences with the,
Aftermarket filter = no option. Only stock and it is more than enough to be used on the 400cc , so don’t worry about air restriction on the GV250cc . In fact the bike will hate and force itself to run badly if you dared put things like “cone filters” / “pod filters”.