Madison Sporting Goods via eBay offers the Mongoose Men's 27.5" Hondo Mountain Bike in Grey for $159.99. Coupon code "PRESDAY" cuts that to $127.99. With free shipping, that's the lowest price we could find by $130. This 21-speed bike features a steel frame, suspension fork, Shimano rear derailleur, and front and rear disc brakes. Deal ends February 20.

Note: The above coupon can be used once per eBay account.