Walmart offers the Mongoose Men's 26" Dolomite 7-Speed Fat Tire Mountain Bike in Navy Blue, model no. R4144WM, for $191.99 with free shipping. That's $7 below last month's mention and the lowest total price we could find by $30. It features an aluminum frame, 7-speed rear derailleur, 4" alloy rims, and 4" x 26" tires.