Mr Donald W Gillies wrote:
> Is there a way to identify these bulge-formed head tubes by looking at
> them ?? Also, we should post this information to the CR list, it's a
> very interesting bit of trivia about TREK.
The best way is to remove the fork and look inside the head tube. With
the bulge-formed head tubes, you can see directly into the top and down
tubes; theres no head tube material inside the tube sockets. Both the
bulge formed head tubes and investment cast head tubes were only used on
the mid to lower range models. The high end models used 3 piece head
tube assemblies (top and bottom head lugs and a separate head tube).
> I think TREKs will be the next big usa collecting craze. My 510 from
> 1984/5 had the nicest brazing i've ever seen on any bike anywhere. And,
> I think more than half of the collectible 70's bikes have changed hands
> on ebay already, and the market price of e.g. mid-70's colnago supers
> seems to have risen quite a lot ... not that i own one or will ever own
> one ...
Let's hope so. Maybe someday your Trek 510 will be as collectible in Japan as an Alex Singer is now... :-)
--
John Thompson (john@os2.dhs.org)
Appleton WI USA