I have a 1983 SR road bike which is currently configured with downtube shifters and a seven-speed freewheel.
I'm thinking to upgrade to brifters, and I've been looking at eBay.
My question is, what are the pros and cons associated with 8 speed vs. 9 speed vs. 10 speed?
What I mean is, I'm going to abandon the 27" wheels and everything else (except maybe the brakes, if I can find a way to put Koolstop pads on Shimano Arabesque brake calipers). So the rear dropouts will be spread to 130mm, and I was thinking, why go with a used 8 speed group when I can just go with 10 speed Ultegra or whatever? In for a penny, in for a pound, etc.