Kempstonian
Has the memory of a goldfish
- Location
- Bedford
Yes it does look as if they are the dates... but it says they could be plus or minus a year, so I think the bike could well be a 1978 model? (one of the first I-4 markings and an 'old stock' G-3)G-3 appears to be March 77 and I -4 appears to be April 79. Have a look at the vintage trek web site and see if you come to the same conclusion.
Edit: Or possibly one crank has been replaced.