They are Hepco and Becker. I'm out of town for 3 months, but I thought I got them from Twisted Throttle. Just went to their website and couldn't find them. They have the SWMotec, but they didn't look as strong to me. The HB are great, strong........haven't had to try them out yet, would highly recommend them. Bit spendy, I think they were about $160.00 to my door from TT.
The SWM's don't have a cross brace and look like they would crush if you dropped your bike. The HB have a brace in front of the radiator.