Anyone: dealer calls the triglide rear brakes--drums. Not rotors, funny it isn't. Are they a specific HD part or is there a source. ?? Any help??

 

Hi from the UK and welcome to HDF. You can answer many questions like that by using any of the on-line parts websites, such as this one, where you can also check if any parts are also used on solos. They are almost certainly Harley-specific, however if they are the same as solos then there are after-market alternatives. Be aware that we also have a trikes section, where you can meet fellow trike owners.

 

Studying your bike, your rear rotors are indeed also drums! You probably have drum parking brakes integrated with the rotors, so they ain't stock solo rotors.