Outside Measurement of Roadmaster Anti-Rattle Hitch Extender
Updated 11/17/2025 | Published 12/07/2024 >
Products Featured in This Question
Question:
I will using this adapter with a set of Rock Tamers by mounting the Rock Tamers to the larger portion of the adapter. What is the outside tubing size of the larger section of the adapter, 2-1/2” or 3”? Thanks.
asked by: Dan M
0
Expert Reply:
Hi Dan; the outside tubing on the Roadmaster Anti-Rattle Hitch Extender # RM-071-1075 is 2-1/2" x 2-1/2" so you would need the Rock Tamers Heavy-Duty, Adjustable Mud Flap System for 2-1/2" Hitches # ERT00110.
expert reply by:
Robin H
0
Product Page this Question was Asked From
Roadmaster Anti-Rattle Hitch Extender for Tow Bars - 2" Hitches - 7-3/4" Extension
- Hitch Adapters
- Hitch Extender
- Tow Bars
- 7-3/4 Inch Extension
- Fits 2 Inch Hitch
- 10000 lbs
- Roadmaster
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Q&A: Can a 2000 Ford Van 1-1/4" Hitch and Adapter be Used with the Swagman Swivel Swing Arm?
- Q&A: Parkit360 Force Electric Trailer Dolly Is Hard To Turn Sharply In Tight Spaces
- Q&A: Is There A 12" Hitch Extension I Can Use While Flat Towing?
- Q&A: How Long are the Curt Hitch Extenders C45791 C76DR?
- Article: Holiday 2025 | Staff Picks for Real-Life Adventures
- Q&A: What Hitch Extension Can be Used For Motorhome With 5,000 lb Towing Capacity
- Q&A: Why Do Hitch Extenders Reduce Hitch Capacity but Long Ball Mounts Do Not
- Q&A: What Frame Width is Lippert 2" Accessory Receiver Hitch # LC78DX Designed to Fit
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Hitch Adapters and Extenders
- Article: The 5 Best Trailer Drop Hitches You Can Buy
- Article: Best Bike Racks for Electric Bikes
- Article: 30-Amp and 50-Amp RV Service: What's the Difference?




Robin H.
11/17/2025
Hey Dan, how did the setup go with the Rock Tamers on the Roadmaster hitch extender? Your update could make it easier for the next person trying to match those sizes.