It is true that the superlight bikes from the Tour you see in the
1960s Le Cycle once in a while all are TT bikes. Maybe also because
in a road race, other factors are more important, and even if your
bike is a pound heavier, you won't get dropped because of that slight
disadvantage - the mental game is more important. On the other hand,
in the "race of truth," every bit helps to gain a second or two...
--
Jan Heine, Seattle
Editor/Publisher
Vintage Bicycle Quarterly
http://www.mindspring.com/