Hello, Marilyn! This bike rack is for use with 1-1/4" or 2" hitch receiver tubes only. The support strap is required if using this bike rack with a 1-1/4" hitch receiver tube. Thanks for asking!
Curt Dual Arm 4 Bike Rack
- Part Number:
4 Bike Rack that clamps onto any 1 1/4” or 2” ball mount shank (ball mount not included).
- Protected by a durable black powder coat finish
- Adapter sleeve allows mounting on either 1 1/4” or 2” receiver tube
- Tilts away for convenient rear vehicle access
- Arms fold down when not in use for compact storage
- Threaded anti-wobble shank helps prevent bikes from swaying during travel
- Securely holds up to four bikes with a max capacity of 180 lbs.
- Use of a support strap is required with 1 1/4” receiver tubes
- Bolt-together post can be disconnected for compact storage