i was thinking about it yesterday on my run.. the pain is starting to become unbearable. i think its the pavement, i might just go to the park and run on the grass..
not a real fan of bikes. i would have to double or triple the distance of my runs to compensate for the difference.
but, i dont like bikes i'm bias toward bike riders due to my marine training and 1st hand Knowledge of the air force workout program.
also bikes cost money.