Madison Sporting Goods via eBay continues to offer the Mongoose Men's 27.5" Seek'r Mountain Bike in Grey/Orange, model no. R4156WM, for $129.99 with free shipping. That's tied with our mention from two weeks ago as the lowest total price we've seen. (It's the best now by $69.) This 21-speed aluminum bike features a suspension fork, Shimano derailleur, twist shifters, front and rear disc brakes, and platform pedals.