Walmart offers the Marcy Mini-Cycle Exercise Bike, model no. NS-909, for $39.71. (Sears has it for the same price with in-store pickup.) Opt for in-store pickup to dodge the $4.97 shipping charge. That's $4 under our October mention and the lowest price we've seen. (It's a low now by $16.) It features a computer display and adjustable resistance settings.