I ordered brake lines recently and mounted them up. I was *really* nervous that I had measured incorrectly and either ordered them way too long or way too short. It seems I measured them perfectly. SS with a clear plastic sleeve. The master cylinder allows a long travel on the brake lever, which is good; I'm worried that these brakes might be too much for such a light, rear-biased bike with a lot of rake...locking the wheel at speed would be...ungood. If I find that they're too much, I'll remove a rotor and caliper and get a new master cylinder that is designed for a single caliper; this one locks a single WAY too easily.