Well the frame was delivered the other day. Quite rigid, not particularly light by modern standards but very impressive!
I spoke with "Peter" in the machine shop at Phil Wood. They still had a few 35 mm press fit external bearing bottom brackets for Klein. I'm having my LBS (International Pro Bike Shop in Bellbrook, OH) order it for me. Peter was very encouraging about a worthy project. He advised me to have my mechanic call him with some of the specifics of the pressed in bottom bracket and he volunteered that they will make an extraction bushing for him for free. I'm really hoping that this happens!
I spent a cold weekend of being sick having a marathon of perusing archived Klein catalogs and it appears that this white Quantum is an '89 model. The white "Quantum" decal on the top tube has a unique font that looks 90's futuristic (think "Tron") with forward black slash marks in the background that are uniquely spaced. I looked on Ebay for replacement decals but have not found an exact match.
The rear triangle on this bike is a very stiff 126 mm. A perfect platform for some old school 6/7 speed tubulars. I have a high Flange Campy Nuovo Record set on Arc-n-Ciel rims or a cool set of Bullseye hubs with black flanges and gold centers laced to gold anodized Mavic "OR-10" tubular rims. I'll probably try both to see which I like better. The white with silver color scheme is really fresh but the white frame is so neutral that gold blingy parts might just jump to life as well. Tell me what you all think.
The pressed in square taper bottom bracket spindle on this frame is longer on the non-drive side than it is on the drive side. My interpretation of this is that perhaps someone tried to extract it and got the bb axle to shift to the non-drive side. Not sure.