Pannier Rack/ Trailer attaching question.
So here it is in a nutshell. I am planning a long distance tour this summer. I was planning on using my dads old, but nice quality road bike to ride this trip. But the guys at my LBS said that it could not support a rack system because of something to do about the axle, perhaps its length is the problem. So after resigning to get a new bike, I'm low on cash, my dad suggested why don't I simply purchase a different and longer axle that could support either racks or a trailer, so I can worry about a new bike for next years trip when I have time and a job. Do racks and trailers attach to the inside or outside of the rear forks? And is there a reason that might not work.
Thanks, and please respond in the least technical manner, I'm still learning all the jargon.