Have a 2031, which is about 96 to 98 year, far as I can figure. Was kind of a rare model, near end of speedex, before Armstrong took over. Anyway, the rear axle still has the sideways trans with chain to rear like other models. There is a disc brake on it, just below chain cover. Actuator is a small lever and they have a cobbled up part of a threaded rod going up to the special cable end and that is adjuster, just not close to the brake or arm. There is also a park brake lever above it, that has no links to the brake at all, at time. Wondering is something is missing? Anyone have a similar looking system on they're rig that could get a shot of it? Or a parts page? Kinda hard to get in there and light I know, and stuff in way. Gonna have to come up with some diff link, the brake is Non-functional in big way now! I'll try a pix here.