I'm thinking about drilling out the top-tube brake cable stops on my steel bike so that I can run housing all the way to the back.
My rationale: My older Cannondale road bike runs housing the full length of the cable to the rear brake. It's really smooth-- I can barely tell the difference between the front and rear.
On my steel bike -- a cyclocross bike -- the rear brake cable is typical in that the center portion is exposed (to mud, water, etc.). Add to that the extra interfaces with the two additional housing ferrules-- I believe that these cause drag and that the fewer housing ferrules in a run of cable, the lower the drag. The rear brake performance is already suffering and there is a lot of drag in the system-- I'm having to increase the spring tension in the cantilevers. All cables and housing are only a few months old.
I intend to try this out first by just zip-tying the rear brake cable housing along the TT and make sure everything works okay.
Has anyone here drilled out steel cable stops? Would I need a special drill bit? Any other considerations?
Thanks for any insight.