Turbo trainers.

ifindoubtflatout
ifindoubtflatout Posts: 132
edited April 2009 in MTB buying advice
Has anybody used one of these?
I recently broke my wrist so I'am thinkng of getting one just to keep my fitness level up.
can they be fixed to any bike rear end (eg maxle.) How do the rollers work as my bike doesnt have slicks on and will the nobbles on my tyres cause mass vibration and a numb ass for me.

Help me out here Ive 5 weeks in plaster n going out of my mind.