A.K.A "CLUTCH"
Passenger tire racks can be made of a steel base and corner posts, or a steel Tier-Rack® frame which attaches to a wood pallet. The all steel stack rack is best for long term storage but for short term storage the Tier Rack frame will be suitable and save you some money. In fact you can buy used Tier-Rack® frames from Tier-Rack Corporation and save even more. The Tier-Rack® tire stacking frame was one of the first product lines Tier-Rack introduced