Bridgestone Cycles made an aluminum bike in the early 90's called the RADAC. What does RADAC stand for?
Answer: Research And Development Adhesive Cement
Kev McGill emailed the only answer which happened to be correct. I remember picking up his sub-20lb 55cm RADAC over 20 years ago and thinking is was insanely light compared to my columbus chromor Bottechia. Tom Sullivan & George (Bohemian Bike Shop) told us what it stood for and I think Kev's descending was a little more conservative that day.