Trek Aluminium Grade Comparison Looking through the Trek archives, I see they have frame materials described as:


Alpha Black Aluminum
Alpha White Aluminum
Alpha Gold Aluminum
Gold Series Aluminum
100 Series Alpha Aluminum
etc


How do these compare to other manufacturers who list the alloy number (6061, 6069, 7005, etc) and double/triple butted?
It sounds like they compare very directly with other manufacturers who list the alloy and butting, except that Trek doesn't release that.  My guess is that some of those descriptions actually overlap and are just marketing hype that changes every couple of years.  Your best bet would probably be to contact Trek directly and and see if they will "translate" their marketing terminology for you.  Based on that forum, it looks like some people have already had limited success with that.