Hey everyone. I'm very -very- new to biking. I've spent the evening browsing through other threads but all the brands, names, sizes, acronyms, etc. have made me very confused about everything. I haven't ridden a bike since I was about 12 (29 now). I've been wanting to give biking a try to help me shed some weight by riding around my neighborhood and city trails. I'd been looking at bikes for heavier people but was put off by the high prices I was seeing. My mother, as a late birthday present, just bought a bike for me. She didn't really take my size into consideration though and just bought one that was a color she thought I'd like and was on sale.
It's a Trek Navigator 2.0; everything stock
Wheels: Alloy hubs; Bontrager 550 36-hole alloy rims
Tires: Bontrager H5, 26x2.0"
I'm really worried these wheels/frame will not be able to withstand my weight, so much that I'm afraid to even get on it and go for a short ride. The tires feel very squishy when I sit on the bike and are rated at 60-80psi. Will over-inflating them a little bit help, say around 90psi? Should I get new tires and/or wheels? If I need new wheels, what are some economical options? Would it be better for me to just park it in the garage until I lose weight? I apologize for being redundant, but I've had some difficulty finding information geared towards my specific equipment and I'm not quite sure how to take information from other bikes and apply it to mine. Any advice is appreciated!