Bought my Schwinn hybrid from a Target one year ago. Have enjoyed it till just recently. Have worked up to 21 mile rides and am now experiencing hand numbness and a burning sensation in the neither region. This is despite wearing padded shorts. Going to get some vertical grips for the ends of the bar handlebars to fight the numbing. On the burning sensation, found that I get instant relief by shifting back on the seat. However, I can't hold that position the entire time. Happened to look at the speed on the computer and saw a 1-2 mph increase when I sat back. Leads me to believe my discomfort is due the the seat being too far forward. Do they sell seat stems that are offset to the rear? That and probably need one a little longer in that I'm above the warning line now. No, I've not had a fitting at the LBS. I didn't buy the bike from them so I didn't think it was real appropriate get that.