Walmart offers the Kent 26" Northwoods 21-Speed Dual Drive Tandem Bike
in Green for $236.55
with free shipping
. That's $12 under our mention from two weeks ago and the lowest price we've seen. (It's the best today by $88.) It features linear pull V brakes, 29" front and 20" rear stand-over heights, two water bottle holders, Shimano rear derailleur, and Revo twist shifters.