The parent company is Hot Bike, www.hotbikeweb.com (primedia). I have not found the actual web site for hot bike baggers, yet. American bagger is another good, bagger only, magazine. Their web site is www.americanbagger.com . As for a copy, they are sold at Barns and Noble, or any other newsstand. I have a subscription to both. They retail for around $5 a copy. You can get a subsciprtion for $20 or so a year. A much better deal, IMO.
I agree with PapaT. American Bagger is a good value and I subscribed when they first came out. Each issue has improved. They're going thru a learning curve I am sure.