Heartland USA makes wide conversion kits and seats, backrest and sissy bars for TMC. Thunder Mountain Harley Davidson in Loveland, Co. is no longer TMC. And has no contact information. As TMC was discontinued. They do have the paint codes and any Harley dealership will work on your TMC. Including wiring problems.

 

i had a 05 bmc big daddy softail chopper. rode gr8. had 240 rear tire. only trouble i had was it kept blowin the main fuse. finally put a thicker negative line to negt. post and solved the problem. was a nice dependable ride thereafter.
also, had a 03 big dog mastiff. at about 20k miles had to put in a new stator. but that was all. rode pretty good. not as well as a road king but, not bad. sure would move when ya twisted that throttle on the 117 s&s motor. oh the bmc chopper had a 100 cube revtech. it did pretty well too. not as smooth as a tp engine but very nice.