Originally Posted by
krakhaus
That's the rumor, but I've never met anyone who had them fail catastrophically. I had a pair in the 90's and they held up to many years of Seattle bike messengering. I even T-boned a car and tacoed my frame, but the spinergy survived unscathed. I had to retire them when the brake surface wore through. I hear some versions were better than others.
The colors later on denoted the strength from what I remember, blue was regular, red was heavy duty and the yellow was a lighter weight. There is video out there as a couple collapsed under pro riders which is probably what did them in. Mine did crack and I wouldn't trust them, I did use them for several year in cross races and they really took the bounce out of the course.