so tomorrow im going to pick up a bike for my first build, out of the ones i can afford these 2 are the ones im most interested in. Walmart.com: Genesis 29" Men's Mountain Bike: Bikes & Riding Toys Walmart.com: Hiland Spark Men's Hybrid City Bike: Bikes & Riding Toys i plan on just using the bike to get around in city for the most part and a few longer trips later in the summer. i'm leaning towards the 29" because it seems a bit more heavy duty, and i like the disc breaks, but im worried the muffler/exhaust mite not fit since the tires are pretty big. i do like the other bike just not ass much. anyone see any big reasons to go with 1 over the other that i haven't thought of? the 26" is an alloy frame, the 29" is unspecified so i'm kinda worried about the 26"s frame. if anyone could provide me with links to 26"+ mountain bikes with steel frames under $250 or so that would be great, im interested in the workman that was posted but i kinda like to have multiple gears as well, and don't like coaster brakes.