Here is another very interesting Klein, the Adept. Effectively Klein combined some of the best pieces of their other bikes with a 700c wheelset and made an excellent touring bike (an early 29er if you will).
The Adept uses the same oversize headset, Mission Control bar/stem and sealed bottom bracket and most of the tubing from the Attitude model. The oversize 2" downtube is borrowed from the Adroit, while the dropouts are from the Pinnacle. Combined with a customized uniklein fork that accommodates 700c wheels and the result is one killer touring bike.
The Adept was only available in 1993 and 1994, and this specific example is from 1994. The color is Candy Apple Red and it's simply amazing, almost looks like it's dripping off the bike. The paint has a richness and depth unlike any other. A quick ride to work and back (even though this bike is waaay too small for me) leaves me with a wonderful impression of the long term touring capabilities of this frame. The Shimano 700cx (equivalent of 600 Ultegra) components are simple and easy to use but not all that sexy.
It seems as thought the Adept is a commonly overlooked and really misunderstood bike (if a bike can be misunderstood) in the Klein line up, but I for one would welcome a larger one into my stable as a daily commuter.