Mike -

I also have access to a 2007 E-Zip Mountain Trailz purchased online from Wal-Mart. Since the bike is mostly preassembled, your odds of receiving a quality bike from the manufacturer is much better than receiving one assembled at your local store. The bike is solid, weighs about 70 lbs. with ONE battery pack, and works fairly reliably. This bike's power comes from a 24v 450W, brushed motor driven by 2 12V SLA batteries wired in series in each case. Each battery pack will normally transport you about 10 miles in a wind speed of about 20mph if you assist by peddling, but the pack will be drained beyond recommendations for a SLA. Consider a range of 7-8 miles the limit for each pack if you drain them to about 1/4 capacity, or 3/4s of their full charge. For the price, the bike is worth it, but only you can say for sure and remember, YMMV. Good luck.