Walmart offers the Mongoose Boys' 20" BMaX All-Terrain Fat Tire Mountain Bike
in Black/Gray, model no. R1498WM, for $169
with free shipping
. That's the lowest total price we could find by $31, although we saw it for $20 less two months ago. This 1-speed bike features 20" x 4.25" street-ready Mongoose bike tires, 36-hole alloy rims, and a rear linear pull brake.