Don't bother..I think Schwinns have been made in China for a long time now, and I don't believe the quality is anything like it used to be...although my info. may be moldy. I still have my Black 10-speed Continental, made in the U.S.A., back in 1981 (ah, the Reagan years). It still runs like a sewing machine and looks great, too!
Gee - I fell off a bike when I was in 8th grade and broke my arm - was going downhill and the brakes failed - it was an old bike. This was back in the 60s before we knew that it was someone's else fault for not keeping the bike in good working order. If I knew then what I know now, I would have been in a nice condo on the beach somewhere instead of wasting my whole morning with you all
If you love your grandaughter at all, you won't let her actually mountain bike on a cheapie bike. They're suitable (barely) for slow neighborhood crawls, but off-road they're accidents waiting to happen, and mountain bike accidents can be painful and crippling.