Walmart offers the Mongoose Men's 26" Ledge 2.1 Mountain Bike in Black/Red (pictured), Blue/Green, or Red, model no. R4050WMBDB, for $125 with free shipping. That's $15 under our mention from a month ago and the second-best price we've seen for this bike. (It's a current low by $56.) It features an aluminum suspension frame, linear pull brakes, and Shimano rear derailleur.