I use it for commuting, so I'm starting on this forum. I have an old Schwinn 3-speed that I love. Only problem is I have to keep loosening the rear wheel and pulling the chain tight again because the wheel slips forward, I'm guessing from trying to power up the smallish hills here in B'more. I imagine there's a simple fix to this, or at least hope, because I'm getting tired of the whole slip, no movement thing that keeps happening to me. Thanks.