Originally Posted by
Ironfish653
The fork looks like an SR Prism: alloy blades/ crown, steel steerer.
That would put you 1986-87-ish
It's a nice piece; stiff but well -damped, a good match to those crit-style 80s race bikes.
I have one on my 3.0 Cannondale
I thought I remembered seeing the SR Prism listed among those analyzed in the
fork deflection test hosted on the Sheldon Brown website.
As shown below, the lateral flexibility of Prism was average among the aluminum, carbon, and steel forks tested, but its forward/backward (longitudinal) flexibility was higher than that of all four steel forks tested.
The Colnago, Merckx, and Paramount steel forks were the stiffest forks tested, both longitudinally and laterally.
Wonder where and how the belief that aluminum forks are inherently uncomfortably stiff arose.
