From:Doug Strange
Subject:Ace fork springs Date:Wed Mar 9 21:40:01 2016
There were two springs rates available for Ace. Joe Stephen
told me that on one occasion, Bill Henderson borrowed his
Reading Standard with sidecar for an errand. About 2 weeks
later, Joe noticed that the Ace forks were a bit softer. He
thought it was from Henderson's ride on his RS.

On the left in my photo is the standard main spring. It's
5.65" long using 0.380 wire (10 coilds). On the right is the
softer version at 5.78" long using 0.343 wire (10 coils).

I'll send photos of the rebound spring in another reply. I'll
have to measure them later.