As Chad says, I do have several Trail series bikes. My survivor Trail Blazer and Trail Horse both have the sprocket adapter with sprocket and spacers for the brake drum. I've not seen any but it's possible that on suspended bikes they could have had a brake drum on the jack shaft and used spacers on the sprocket. I feel like I've seen this once on here but can't remember who had it. I have a suspended Trail Horse that I got from rocco and it has the same setup as my others which is adapter for sprocket and spacers for the brake drum. I just thought of another scenario I think I seen and that was the brake drum against the sprocket but I don't know if it had an adapter or spacers and I do believe that was on a suspended bike. Once again, I haven't been following these bikes for awhile so I can't remember where I seen that one either.
Looks like the Appliance Alliance has to start getting the documentation down on these.