Originally Posted by
sp00ki
the problem isn't the distance, or even the tempo, it's the grades. the only thing separating doing 100 miles on a fg and doing it on a geared bike is the hills. once they start turning into mountains, you should reconsider.
Most I've managed is about 30 miles through Colorado's mountains. Amazing endurance training non the less.
On our flatter grounds i can much farther.