The Hyperax Volt Hitch-Mounted Bike Rack Carrier drops from $279.95 to $223.95 when you clip the 20% off coupon code and proceed to checkout at Hyperax via Amazon. Shipping is free. That's the lowest price we found by $28. This two-bike carrier has a maximum load capacity of 110 pounds, so it can carry E-bikes, mountain bikes, and road bikes. For heavier bikes, like E-mountain bikes, the Hyperax Volt 2 that has a max load capacity of 140 pounds also has a 20% off coupon code. Sales tax is charged in most states.