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Roadmaster Dual Hitch Receiver Adapter, 2" or 4" Drop/Rise

Roadmaster Dual Hitch Receiver Adapter, 2" or 4" Drop/Rise

Item # RM-077-4
Our Price: $156.99
You Save: $28.81
Accessories and Parts
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Shipping Weight: 25 lbs
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Add a bike carrier or cargo carrier with the dual hitch receiver. 1-636-306-4830 to order Roadmaster accessories and parts part number RM-077-4 or order online at Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster Dual Hitch Receiver Adapter, 2" or 4" Drop/Rise. Accessories and Parts reviews from real customers.
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  • Reviews (193)
  • Q & A (0)
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  • Why etrailer?

Roadmaster Accessories and Parts - RM-077-4

  • Tow Bar
  • Hitch Adapters
  • Dual Hitch Adapter
  • Roadmaster
  • Fits 2 Inch Hitch
  • 2 Inch Rise/Drop
  • 4 Inch Rise/Drop

Add a bike carrier or cargo carrier with the dual hitch receiver.


  • Allows you to use a hitch-mounted bike rack or cargo carrier while towing your vehicle
  • Constructed of sturdy steel
  • Resists rust and corrosion with durable powder coat finish
  • Requires pin and clip or hitch lock (sold separately)


  • Application: 2" x 2" trailer hitches
    • Dual receivers have 2" x 2" openings
  • Drop: 2" or 4"
  • Rise: 2" or 4"
  • Gross towing weight: 10,000 lbs
  • Tongue weight: 400 lbs
  • Limited lifetime warranty

Dimensions of Dual Hitch Receiver


  • Not for use when towing a trailer.
  • Reduces the tongue weight capacity of your hitch by 50 percent.

077-4 Roadmaster Dual Hitch Receiver Adapter, 2" or 4" Drop/Rise

Installation Details RM-077-4 Installation instructions

Customer Satisfaction Score:

Customer Reviews

Roadmaster Dual Hitch Receiver Adapter, 2" or 4" Drop/Rise - RM-077-4

Average Customer Rating:  4.8 out of 5 stars   (193 Customer Reviews)

Add a bike carrier or cargo carrier with the dual hitch receiver.


Exactly what I needed. Now able to add storage box and still pull tow Dolly.


I bought the dual hitch to allow me to carry my bike rack at the same time be able to leave my tow hitch attached. It works great!

Excellent option to add a bicycle rack when towing. Easy to use. Well made. I highly recommend.
Ed - 07/03/2021


Had to return this item as my bike rack did not fit in the receiver. The bike rack fits everywhere else so not sure if this was defective. Decided not to reorder because of the cost of return shipping.


Wanted to be able to combine tow hitch and bike hitch. This required a 2" drop and a 4" rise with a 10K lb capability. came thru with product, price, special free shipping, and great customer service. Ordered on Sun and received on Wed and installed on Thur and ready to go!

After 1 year this product is still working as day 1.
John O - 03/31/2015


Wow is this heavy duty. Perfect for my needs, except that the insert is solid steel so I can’t add an internal hitch silencer. The solid insert does give me reason to believe this will last forever as it can’t bend

Still perfect, finish has held up great.
Earl - 02/27/2022


I bought this adapter to attach a bike rack while flat towing my car behind a motorhome. The hitch adapter came quickly and easy to attach. I highly recommend this product.


Exactly the product I needed and it arrived almost immediately.
We can carry our bicycles and pull our car behind our bus - the 4" drop lets me stow the Blue Ox when we arrive at our destination.


This is an absolutely a heavy duty receiver. The receiver is sold and not hollow. Shipping was slower than expected. They held it for3 days before shipping. etrailer needs to get better on this considering they are not the only ones to have this. Roadmaster has quality products.


I just received this order this evening and why is that super fast it's very nice piece and it's solid steel.

Bruce - 03/10/2022


Absolutely solid. Exactly what I requir ed


Always great products!!


Excellent, pulled the toad and attached the bike rack to the RV perfectly.
Great product, but better customer care and relationships

Excellent product!! Works as advertised.
Mark - 06/01/2020


Great product.


Love it !
Only one I`ve found that fits
my need with both upper & lower receivers having a strong tow rating.


Needed a drop hitch for the Falcon 2 tow bar to get within the specified 3" variance off level as specified by Roadmaster. Also, we wanted to have the second receiver for a hitch mounted bike carrier. Problems solved! Thanks etrailer!

Still performing and doing the job of bicycle hitch and hitch for the Falcon II tow bar.
Jim M - 08/23/2018


This dual hitch receiver was exactly what we needed as it allows us to pull our tow vehicle behind our RV and also carry our bike rack between the RV and the tow vehicle. The dual hitch receiver is very heavy-duty and very well constructed.

Still working great one year later!!
Steve P - 01/27/2018


Our new double 10000lbs rating receiver is perfect on our class a. Now can 4wheel down tow our Honda crv and put our bike carrier on the same receiver with plenty of clearance for the sharpest of turns. Very well made nice piece of equipment. Great service and with pin purchase and receiver, free shipping.

works great. use it all the time to haul our bikes and tow a car with our rv
jeff - 01/25/2020


Product has worked great. I use it to tow a vehicle behind my Motorhome on the lower hitch and carry two heavy electric bikes on a bike carrier on the top hitch. I have put more than 15000 miles on it so far without any issues.

Still working perfectly after more than 20K miles and more than a year on the road
Leo S - 03/12/2020


Very well made with nice powder coat finish. Purchased to allow use of hitch mounted bike rack(when toad is connected) and get tow bar within "safe" zone for level towing. Like option of different drop length. Great service and fast delivery.

Still performs as expected. No issues so for.
LARRY P - 11/16/2017


For my toad needed an extension for a 4" drop and a connection for a bike rack. No one locally had what needed. etrailer had the exact item I needed to haul my toad and bike rack on motor home for the rated capacity I needed. Quality built product. Delivered product exactly as shown on web site.

E-trailer gets it right. After a year. No issues. Dont just buy, call and they can get you the right product for your application.
Mr. G - 08/24/2020


Excellent product and excellent customer service


Reasonable shipping time on my drop hitch. The quality seems heavy and strong. Works perfectly for my needs, allows me to tow car behind coach and carry bike rack at same time. Very happy with this product and recommend purchasing from Etrailer.

hitch is working great and my opinion is the same now as it was a year ago.
William - 04/17/2020


Received my 4 inch hitch adapter almost two weeks ago. Finally had the time to install and test it on my RV. The adapter fits great and the welds look very well done. The 4 inch drop along with my blue ox’s 4 inch drop are the perfect combination for my tow package. I plan to add a new bicycle carrier in the near future and this adapter was chosen with that in mind.

1 year usage and still great purchase for towing my Mini Cooper. I love the versatility of adding my bike carrier in front of the toad vice being on back of towed car.
James - 02/17/2020


I purchased this to easily switch between a small trailer and a hitch-mounted tray for my Jeep. The tray needed to be mounted lower in order to still allow for the tailgate to be opened. This product fit my needs perfectly.

Exactly as expected!
Frank S - 07/28/2020


Very good quality and works great. Just what I needed to haul my bikes while flat towing my Jeep.

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