This is a first generation Trek full suspension bike. The T3C
swing arm (travel equals three times compression) was not a very robust
system. The elastomers were not very well suited for the task and
the bikes did not perform very well. Trek also tried to market
their own line of front shocks which were made by Showa in Japan.
The shocks only lasted a couple of years before Trek started specing
"brand name" forks.