Originally Posted by
Pcampeau
My 74 PX10 has Simplex SLJ derailleurs and they are fantastic, pricey but fantastic. I got lucky mine had SLJ when I acquired it a few years ago. If those derailleurs hadn’t come with it I’d have happily used the plastic ones until they broke. I fit 32mm tires on mine and I’ve not been tempted to try and get fatter rubber so I can’t say if 35mm will fit or not.
I have 32s on my '72 as well. I think I could squeeze 35s on there if I pushed the dropout adjusters all of the way back.
Agreed...SLJs are a godsend.