LightInTheBox offers the LKS Unisex 26" Mountain Bike in several colors (Red pictured) for $399.95 with free shipping. That's $591 off list and the lowest price we could find. It features seven speeds, an aluminium alloy frame, Shimano shift lever, and double disc brakes.

Uncheck "Add Shipping Insurance to your order" during checkout to remove the 49-cent fee.