wiper blades

[salva57@optonline.net]

Hello listers,
I finally decided to install the wiper on my 250, and found what seem to be 
original wiper arms in one of the many boxes full of stuff. They are the 
brushed stainless steel finish, but realised that the blades I got from another 
set don't fit because the original arm is wider and thus won't accept the 
narrow blade. Does anyone know which is available now, narrow blade or wide ? 
Thanks in advance, as many of you come up with helpful answers.

Sal Vespertino
www.triumphowners.com/381