You have a number of threads going about touring. One of those threads states that you plan to ride a bicycle across Canada. There are large expanses of Canada were a breakdown could leave you stranded for some time. This thread that you started to ask about brake cables shows that you do not have the experience or knowledge to safely ride across Canada. That's why some here, such as myself and fietsbob are recommending that you do some reading. Read a good book on bicycle repair/maintenance and also read up on touring by bicycle. On top of that you really do need to do some short tours long before you embark on a cross-country tour. And by long tours we don't mean an overnight or long weekend tour. If at all possible you should do a tour of a bout one week with all the stuff you plan to take cross country. that way you'll have afar better idea of what you need and the effort required to carry it.

Btw, how do you plan to get back to your starting point?

Cheers