Got the Doran tire pressure monitor and installed it yesterday. It works and is super easy to install, took all of about 5 minutes. They provide a handlebar mount for round bars but it can be put just about anywhere.
It is very accurate and the alarm light is hard to ignore should your tire pressure get low.
A little peace of mind if you ride at higher speeds on long distances.
http://www.doranmfg.com/motorcycle-tire-pressure-monitoring-systems.htmI tried their tech support out and someone picks up the phone, a good sign. It does require a power source but it draws very little current so shouldn't be too difficult to do.
