Originally Posted by
seypat
The BB is super light and the metal has a different sound. Frame weighed 4.61lbs with the bottom headset race still in. That's it. Done for the night.
This BB is a Sugino Mighty MW-68. The Centurion site has a question mark. This one.
VeloBase.com - Component: Sugino Mighty MW-68
Hollow Ni-Cr alloy spindle. The cups and bolts might be Ni-Cr as well.
Edit: The Sugino catalog lists the spindle as Cr-Mo steel and the cups as Ni-Cr steel. The crank bolts/washers and locking ring have a combined weight of 16g. They have no attraction to a magnet or any Sugino markings.
http://equusbicycle.com/bike/sugino/...hure56%201.pdf