Walmart offers the Swagman Traveler XC2 2-Bike Platform Hitch Rack for $170.70. Opt for in-store pickup to cut it to $98.21. (Amazon charges the same with free shipping for Prime members only.) That's the lowest price we could find by $37. With space for up to two bikes, it fits 20"-29" wheel sizes and has a weight capacity of 35 lbs. per bike.