Lots of Treks from the first half of the 80's came with Helicomatic rear hubs.
Upgrading to a more reliable conventional style hub should always be a consideration, Unless, tou really use the Helicomatic's feature of quick change on the rear cogset.....which does not seem ti he the case for most people.
__________________
72 Line Seeker
83 Davidson Signature
84 Peugeot PSV
84 Peugeot PY10FC
84 Gitane Tour de France.
85 Vitus Plus Carbone 7
86 ALAN Record Carbonio
86 Medici Aerodynamic (Project)
88 Pinarello Montello
89 Bottecchia Professional Chorus SL
95 Trek 5500 OCLV (Project)