Which Shimano Flight Deck do I need

[climbin'junkie]

I have a 2005 Trek Madone 5.2 on the way (Ultergra through out...Double crank...I think a 9 speed).

Which model Flight deck do I need?

 

[Shredpirate]

I believe you need a 9 speed.

 

[ganderctr]

I think either one will work. OTOH, I don't think there's but one being made right now: the 6502.