I had installed the Yamaha mid height risers (about 4") with my stock bars, and all of the original cables would have worked. The brake line was REALLY tight between the master cylinder and the "T", but it would have worked, at least for a while. I changed it out to a dual brake line set-up. The throttle and clutch cables needed to be re-routed but they were ok. I had never planned on keeping that set-up, but if I did I would have changed out all of the lines and cables. I knew I was buying Radius bars, so I didn't care. If you are interested I have two stainless brake lines that I used with that setup, to run dual lines to the front brakes. I would sell them cheap, as I no longer need them. They are Goodrich uncoated stainless lines. You would need to buy the ends for them, a double banjo bolt for the master cylinder, and crush washers. You could reuse the stock banjo bolts on the caliper, though. Let me know if you want them, and I will get a price to you.