I have a 2019 Spyder that I purchased used last May. This is going to sound stupid, but... how can I tell if it has sway bars installed? Can you SEE them on the bike without going under it/lifting it?
All Spyders have swaybars, they come with them from the factory; and yes, if you get down low enough you will be able to see the ends of the sway bars and the sway bar links that connect each of the 'A' arms to the ends of the sway bar running across the bottom of the frame, altho that cross piece is sorta hidden a little by the frame cross section.
But like I said,
ALL Spyders have sway bars, and I can tell you from experience that you don't want to ride one that doesn't have one fitted, or even ride a Spyder that has a broken sway bar link end for that matter! And the factory sway bars are not much better at reducing sway than a piece of limp pool noodle, while the OEM Links are some black plastic/poly/nylon dog-bone shaped pieces crap that're prone to deformation, deterioration, and eventual failure if you ride the Spyder at pretty much anything beyond a brisk walking pace!
So what you
really want to know is '
How can you tell if the sway bar fitted to this particular Spyder is a better quality upgraded sway bar', which can be a little more difficult to confirm.
The first giveaway is the links themselves, altho there are a few who have kept the OEM bar and just fitted a/mkt end links - but if the links are coloured &/or metal instead of the crappy placcy OEM end links, that's a good start! Then if the sway bar itself has a number of holes in the end to allow you to choose a closer or further away hole to connect the end link, you know it's not OEM, but it's also not a BajaRon Bar. If the bar is coloured anything but black, then you're likely heading in the right direction, but you'll need to get down there to confirm that the diameter of the bar itself is not the OEM dia, only now that've I've got this far, I can't recall the exact measurements to look for, so I hope someone can supply that for us. And if the a/mkt bar is one of BajaRon's Ultra bars, then the end of the bar isn't bent to allow the cranked end to reach the sway bar link, it'll be a straight thru shaft with a splined dog-bone piece keyed & bolted to the ends forming the 90° crank section to connect to the metal sway bar link.
Sorry I can't remember the appropriate diameters, or get them for you atm, but hopefully this info will at least help a bit, and maybe prompt someone else to come up with something a little more helpful.
Cheers!