What are the differences between the HR3000 and the HR3500 TRS (Tire Retention System) racks?

What are the differences between the HR3000 and the HR3500 TRS (Tire Retention System) racks?

a.       The HR3000 can be fitted to either a 1-1/4” or 2” receiver hitch whereas the HR3500 will fit into a 2” receiver only.

b.       The HR3500 comes with keyed alike locks to lock the rack to the vehicle and the bikes to the rack. The HR3000 does not come with locks (locks are available as an after-market accessories).

c.       The HR3500 uses our patented “No Wobble” system to firmly attach the rack to the receiver hitch whereas the HR3000 uses a threaded hitch pin.

d.       The HR3000 comes with silver wheel trays whereas the HR3500 comes with black wheel trays. Both are aluminum construction.