Schwinn Sierra 7 for sale $120.

7 speeds, medium frame for 5'6"-5'10" person. Seat is worn but very comfortable, seat post has built in suspension. Has a kickstand. Bike is 5 years old and still works very well. Paint is a bit scratched but frame is in great shape.

I expect this bike will last another 5 years. I'm only selling it to switch over to a road bike for a longer commute.