I recently purchased for my 74 HONDA CB 360 a new set of clubman handlebars and in my hands they look kind of wide? I measured them from bar end to bar end and they are 27.5" is that to wide? can I trim them? I would just put them next to the bike and see but it is in the shop. How hard will it be to change the handlebars myself? Do I need replacement cables that are smaller? and where can I find them and what lengths would I look for?