You mean a skid plate? I like the Hyde Racing polymer because it's lightweight, but there are several other aluminum options out there.
TCI has these. Pretty sure they're the ones CJBrown prototyped. You can search his posts to read about 'em and see more pics. https://tciproductsusa.com/index.php?main_page=product_info&cPath=144_155_197&products_id=753 As RDTCU asked...if you do indeed mean skid plate then lots of folks also look at the Uptite skid.
Hyde are the way to go IMHO - light, do not amplify engine noise and glide over stuff due to poly construct. Easy to fit and indestructible.
Only quirk was that I needed to cut a small notch near the rear for the shift arm, I believe it's a bit lower on the 630 than the 610. I also drilled an additional drain hole at the low left point, the lowest point when it's on the side stand. I can have it off in about 2 minutes for an oil change.
