Originally Posted by Gawain
Ok guys, thanks for your answers. I will check the dropouts. It might also be the occasion to go 8 speed. My drive train is a 15 year old deore LX whose retirement is long due.
I have a 1994 Cannondale mountain bike that also has a 7-Speed LX drivetrain, and just like you, thought maybe I could pick up cheap 8-Speed shifters/brifters and upgrade to an 8-Speed drivetrain. I had my eyes set on a used pair of Shimano XTR ST-M910 brifters offered on e-bay, which would have been perfect with my cantilever brakes. You can imagine my horror, when a bid that started out at $1, ended up at $76, with an additional $7.90 for shipping!
And I thought initially that I'll pay $10 for them, which plus shipping, equals around $20! Ha!
My advice is to make sure that whatever shifters/brifters you are considering, are indeed compatible with your brakes (Cantilever or Vs).
Can you imagine a circa 1992 used brifters going for $83.90? I decided I'll keep my 7-Speed drivetrain for now. As a matter of fact, 7-Speed looks pretty good right now.