Walmart offers the Mongoose Men's 26" Ledge 2.1 Mountain Bike in Black/Red or Blue/Green, model no. R4050WMBDB, for $115 with free shipping. That's $10 under our August mention and lowest total price we've seen for this bike. (It's a current low by $95.) It features an aluminum suspension frame, linear pull brakes, and Shimano rear derailleur.