I wouldnt say you dont need a front shock.They do help take the shock out of the arms and shoulders.Also you say 5 miles each way,thats now but if you get into it,lose a little more,nice weather,you will ride more so dont throw out the front shock yet but do ride both and see.You could look for a used bike,300 bucks would get a decent one and if you do get into it,you WILL want a better bike,that happens to the best of us even if we dont need it.