Your brakes are built in. Don't let them tell you otherwise. Have them give you any braking test they come up with, and you should pass easily.
It is impossible to coast on your unicycle (on a mountain at least). Therefore the need for brakes is much less that it would be on even a singlespeed bike. You are a fixed gear, and all you have to do is not pedal. Even if you take your feet off the pedals, you'll stop pretty darn fast (and painfully)!
-- johnfoss - Walkin' on the edge
John Foss, the Uni-Cyclone "jfoss" at "unicycling.com" www.unicycling.com
"Beer me." -- Scot Cooper, at the end of a group ride all the way up and all the way down Mt. Diablo (3300'😉, a 20 mile round trip of road and trail. ------------------------------------------------------------------------ johnfoss's Profile: http://www.unicyclist.com/profile/832 View this thread: http://www.unicyclist.com/thread/33826