Originally Posted by
devilshaircut
According to SB:
"If you ride a fixed gear with only a front brake, your legs will tell you exactly when you are at the maximum brake capacity of the front brake. Once your fixed gear has taught you this, you will be able to stop any bicycle better, using the front brake alone."
Thats a good quote, but I think it's often taken out of context. If your stopping in a straight line, with no dirt, incline, or ice and slush, a front brake is all you need. However, most other times having both brakes is nice.