Originally Posted by mihlbach
Riding a geared bike is fun. Riding a FG or SS is fun. Riding a geared bike but not changing gears is just not fun....and no matter how much you think it may give you an idea of what its like to ride without derailerurs, its just not the same as riding a ss or FG. The simple presence of the deraileur and the constant temptation to use it spoils the fun.
Counterexample: Me
To see if i could handle fg I rode a 70km commute for a month on a road bike without changing gears, And it was fun.