RM25 are to vintage, but RM20 with the green/yellow decal are good rims for 1993. Take a look at mombat timeline from 1993:
Rims: Specialized X23, Ritchey Vantage Comp/Pro/Expert, Mavic 231/234/321, Araya RM 400/TM-18/CV-7/RM-395/RM17/RM20, Ukai Breeze, Sun CR16/M14/Chinook, Bontrager...