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  1. Hitch Adapters
  2. Roadmaster
  3. Dual Hitch Adapter
  4. Fits 2 Inch Hitch
  5. 10000 lbs
  6. 2 Inch Rise/Drop
  7. 4 Inch Rise/Drop
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: $187.23
Hitch Adapters
Shipping Weight: 25 lbs
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Add a bike carrier or cargo carrier with the dual hitch receiver. 1-800-940-8924 to order Roadmaster hitch adapters part number RM-077-4 or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster Dual Hitch Receiver Adapter, 2" or 4" Drop/Rise. Hitch Adapters reviews from real customers.
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  • Reviews (228)
  • Q & A (0)
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Roadmaster Hitch Adapters - RM-077-4

  • Dual Hitch Adapter
  • Fits 2 Inch Hitch
  • 10000 lbs
  • 2 Inch Rise/Drop
  • 4 Inch Rise/Drop
  • Bike Racks
  • Cargo Carriers
  • Roadmaster

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


Features:

  • 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)


Specs:

  • 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

Notes:

  • 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:  4.9 out of 5 stars   (227 Customer Reviews)

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

by:

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

David

8/15/2023

Works great, pull out tow dolly with small SUV. Also pull 14’ flatbed trailer hauling my Kawasaki Mule.



by:

Etrailer’s customer is actually customer service. There’s real people who are there to help. Kate helped me get my order the next day after I realized I accidentally switched the billing and shipping addresses on the order form.

Richard

4/30/2024

Still works the same as when I purchased it.



by:

I first went with a ridged brand that had a recall the sent me a replacement (I used the original for approximately one year with no problems)the replacement hitch bent immediately and when I contacted ridged they blamed my driving habits since receiving the roadmaster I’ve added a heavier vehicle and a very heavy spare tire rack and no problems



by:

I contacted etrailer and spoke with Terri N. I had previously purchased on 3 separate occasions another brand of dual hitch (none from etrailer) which all bent when pulling my 2018 Jeep Wrangler behind our 2014 Fleetwood Bounder 35K Motorhome with a Hollywood bike frame carrying 2 Rad Power e-bikes. Apparently, we were using the wrong adaptor. She was VERY helpful with information, discouraging more than 1 hitch adaptor and recommended the 10,000 pound dual hitch receiver with a 2-4 in drop/rise. So far, it seems to be working fine. My only concern is that there is not enough clearance to fold up my Blue Ox tow bar while connected to the hitch. Also, the front of the Jeep bumper is VERY close to the bike rack upon turning the Motorhome.



by:

Very impressed with the quality of this hitch adaptor! I have purchased many items from etrailer and never disappointed!!!



by:

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. Etrailer.com 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!

John O.

3/31/2015

After 1 year this product is still working as day 1.



by:

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!

Ed

7/3/2021

Excellent option to add a bicycle rack when towing. Easy to use. Well made. I highly recommend.



by:

Indescribable/rugged a little on the heavy side but that’s what you need to take the abuse of pulling up to 10000#s



by:

Its great, showed a lot of people. Every one i showed said they want one.



by:

Item is well made and will provide more flexibility with having a bike rack hitch and towing hitch at the same time.



by:

This was a change to ensure it met the 10K tow capacity of the Roadmaster system. The bike rack and the tow system are a little close so considering another extension for the Roadmaster system to allow a little more clearance when turning.



by:

Great product, works as expected.



by:

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



by:

Thank you . Easy order. Shipped fast. Product is strong. I always get a good experience with E-Trailer.



by:

Good quality and heavy duty. Will work great being able to tow my jeep with the bike rack on top.



by:

Great product and well built. Easy access on their website with fast shipment.



by:

Exactly what I needed. Our A class motorhome sits higher than our ex-C class did and angles the toad pull line too much, thus the 4" drop. When pulling our little fishing boat we had no where for our e-bikes, thus the 2" rise. All should be perfect now. Next problem is June and first of July is completely booked with family stuff. Can't test anything until July 12th, 2023. Going fishing. Will update if a problem but I cannot forsee one.



by:

Works exactly as advertised. Lets me put my bikes behind the coach and in front of the Jeep we tow. 8000 miles and no issues at all. Heavy duty unit will not disappoint!



by:

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!

Jim M.

8/23/2018

Still performing and doing the job of bicycle hitch and hitch for the Falcon II tow bar.



by:

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.

Steve P.

1/27/2018

Still working great one year later!!



by:

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.

James

2/17/2020

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.



by:

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.

Jeff

1/25/2020

works great. use it all the time to haul our bikes and tow a car with our rv



by:

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.

Leo S.

3/12/2020

Still working perfectly after more than 20K miles and more than a year on the road



by:

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.

Mr. G.

8/24/2020

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.



by:

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.

William

4/17/2020

hitch is working great and my opinion is the same now as it was a year ago.


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227
Show More Reviews

See what our Experts say about this Roadmaster Hitch Adapters

  • Can the Roadmaster Dual Hitch Adapter Be Used to Flat Tow a Vehicle and a Hitch carrier
    Yes, you can use this Roadmaster Dual Hitch Receiver Adapter # RM-077-4 to use a tow bar to flat tow a vehicle and then simultaneously carry a hitch accessory like a bike rack or cargo carrier on the top hitch opening. Check out the picture I attached that shows a tow bar and a bike rack being used with a # RM-077-4 on the back of an RV. You should not have a problem unhooking the tow vehicle if there was a carrier above it either. I attached an FAQ article on flat towing for you to check...
    view full answer...
    Image 1 for
  • Is There a Hitch Adapter that Allows for Towing Trailer and Carrying Bike Rack
    We have a similar solution that would work well with the # D210 but the # RM-077-4 cannot be used with a trailer so it would not work. Instead the # D210 is the way to go as it has a ball mount platform for your trailer and then above it is a hitch opening that a bike rack could be carried in.
    view full answer...
  • Recommended Dual Hitch For Towing A 4K Trailer
    I do have an option for you, but the Roadmaster dual hitch adapter # RM-077-4 should not be used for towing a trailer. This is intended for use when flat towing a vehicle only. Instead I recommend using the Gen-Y adjustable ball mount # 325-GH-314. This thing is rated for 10,000 lbs towing or 1,500 lbs tongue weight. So more than enough for your 4K trailer, and whatever other accessory you will be using the dual hitch for. This ball mount gives you four stacked 2" receivers so it will...
    view full answer...
  • Bike Rack Recommendation To Carry Two E-Bikes While Flat Towing A Buick Enclave
    For your Buick Enclave, the Roadmaster Dual Hitch Receiver # RM-077-4 you mention will work fine being flat towed behind your 2014 Jayco Greyhawk. This product has a GTW of 10,000-lbs, and should only be used for flat towing situations, as it is not rated for trailer towing. Additionally, this product will reduce the tongue weight capacity of your hitch by 50%. As far as a bike rack goes, the Yakima OnRamp Bike Rack for 2 Electric Bikes # Y36FR is a great option, and can support up to...
    view full answer...
  • Can the Roadmaster Dual Hitch Receiver Be Used For a Bike Rack and Cargo Carrier
    I do have an option for you but I cannot advise you combine two hitch adapters together like the Roadmaster Hitch Extender part # RM-071 and the Roadmaster Dual Hitch Receiver Adapter part # RM-077-4 as this would be very unsafe. However, if you need to carry both bikes and extra cargo I do still have an option for you. I recommend the Hollywood Racks Sport Rider SE2 Platform Bike Rack w/ Cargo Carrier part # HR1450Z-85.
    view full answer...
    Image 1 for
  • Dual Hitch Adapter Recommendation for Towing a Camper and Carrying Bike Rack
    I have a solution for you, but the Roadmaster Dual Hitch Adapter part # RM-077-4 that you referenced can only be used for flat towing a vehicle. Instead you would want the part # D210. This will provide you with a lower ball mount portion and an upper hitch opening for your bike rack.
    view full answer...
  • Dual Hitch Adapter with 4 inches of Drop
    Sounds like you have a high low adapter currently that has 4 inches so for a similar dual hitch adapter you'd want the part # RM-077-4 which has the same 4 inch drop and a hitch opening above it for your bike rack.
    view full answer...
  • Dual Reciever Extensions for Flat Towing a Car and Using a Cargo Carrier
    Yes we do have an adapter available that should work for you. You could use the Curt Dual 2 Inch Receiver and Extension, part # D-192. You could also use one of the Roadmaster versions, part # RM-077-4 or RM-077-2. These parts are only to be used with a rolling load such as a vehicle being towed with a tow bar and should never be used to tow a trailer.
    view full answer...
  • How Level Does a Tow Bar Have to be When Flat Towing Vehicle
    I attached a picture that shows the height difference range that's acceptable for a tow bar. Basically it needs to be between 3 inches above or below level and you're good. The part # RM-077-4 that you referenced can do a 4 inch rise/drop. The Blue Ox Alpha part # BX7380 that you referenced can have the arms spaced between 16 and 36 inches.
    view full answer...
    Image 1 for
  • How to Use a Hitch Mount Bike Rack While Flat Towing and Using a Blue Ox KarGard II
    Unfortunatley, the Karguard II will be in the way of the bike rack installed into the top receiver of the Roadmaster Dual Hitch Receiver # RM-077-4. An alternative option may be to add a trailer hitch receiver on the back of your towed vehicle and install the Yakima Holdup (part # Y02443 for 2 inch hitches or # Y02445 for 1-1/4 Class II hitches) on it. If you provide me the year, make, and model of the vehicle you're towing I'm happy to recommend a hitch receiver.
    view full answer...
  • Can Either of the Receiver Openings of the Roadmaster Dual Hitch # RM-077-4 Be Used for Flat Towing
    Yes, either hitch option can be used to tow your vehicle and the other to carry a bike rack. If you wanted to use either of the hitch openings for your bike rack and the other for flat towing it would be fine.
    view full answer...
  • Carrying 3 Bikes While Towing a Trailer with a Class II Hitch on a 2000 Chrysler Town and Country
    There are no dual receivers for 1-1/4 inch hitches but I do have a solution for you that could work. What you could do is use a trunk mount bike rack like # HRE3 which is the most economical choice that fits your 2000 Chrysler Town and Country and holds 3 bikes. The only problem is that three bikes hanging off the back of the vehicle could interfere with the trailer. You could use a longer ball mount like # C45000 to help with clearances but on a Class II hitch you are supposed to use...
    view full answer...
  • Will the Roadmaster Rollaway Hitch Protector Fit a Dual Hitch Receiver
    Yes, I do not see any issues with the compatibility between Roadmaster Rollaway hitch protector # RM-050 and dual hitch receiver # RM-077-4. Take a look at the video for the hitch protector I have linked. You can see how it attaches to a receiver showing how there wouldn't be interference between the 2 parts.
    view full answer...
  • Adapter Recommendation for 4 inch Drop and Second Hitch Opening for Carrying Bike Rack
    Sounds like what you are looking for is the Roadmaster High Low Adapter part # RM-077-4 which will provide you with the 4 inches of drop you need plus an additional hitch opening above for a hitch bike rack to install.
    view full answer...
  • Can Roadmaster High Low Adapter # RM-077-4 be Used with Spare Carrier # RM-195225
    The Roadmaster high low adapter part # RM-077-4 that you referenced has a 400 lb tongue weight rating so it would easily be able to handle the weight of your spare wheel and tire installed on the # RM-195225 you mentioned as well.
    view full answer...
  • Multipurpose Ball Mount Recommendation to Tow a Boat and Carry a Scooter
    I have a solution for you, but the Roadmaster Dual Hitch Receiver Adapter # RM-077-4 that you referenced is only designed for flat towing vehicles so I cannot recommend it for you. Instead you would want the Curt Multipurpose Ball Mount part # D210. This will let you tow your boat with the ball mount and then use a carrier on the top hitch opening. The unit itself has a 7,500 lb towing and 750 lb tongue weight capacity while the top receiver has a 350 lb tongue weight capacity.
    view full answer...
    Image 1 for
  • Can the Roadmaster Dual Hitch Receiver Be Used to Tow a Trailer and Carry Bike On a Bike Rack
    The Roadmaster Dual Hitch Receivers, like the # RM-077-4 that you referenced, are not designed for use with any type of trailer. They are designed for use with tow bars only. I recommend installing a hitch on the back of your RV. If your RV has a 4 x 4 inch continuous-welded steel bumper, you could use the RV Bumper 2 inch Trailer Hitch Receiver, item # S64025, along with a bike rack that is designed for use behind an RV. The Swagman Dispatch Bike Rack, item # S44FR, would be a good choice. If...
    view full answer...
  • Dual Hitch Adapter with a Capacity Greater than 5,000 lbs
    Check out the Roadmaster Dual Hitch Receiver Adapter # RM-077-4. This product is very similar to the Curt Dual Receiver Adapter # D-192 you referenced except it has a 10,000 lb capacity. This item is for towbar use only.
    view full answer...
  • Adapter Needed for Carrying Bikes on RV While Flat Towing
    We do have some options available for you. The Roadmaster dual hitch receivers, part # RM-077-2 for a 21/4" Rise/Drop and part # RM-077-4 for a 4" Rise/Drop, were created just for this purpose. You can flat tow your vehicle with the bottom receiver and then use the top receiver for a bike rack. The top receiver for each product is rated at 400 lbs Tongue Weight (TW) so you need to be under that capacity for your bikes. Be sure to stay within the 3" safe zone (see attached picture) of...
    view full answer...
    Image 1 for
  • Are Longer Safety Cables Required When Using the Dual Hitch Receiver Adapter # RM-077-4
    The addition of a dual hitch receiver adapter like part # RM-077-4 may require longer safety cables, but that will depend on the length of your current safety cables. This adapter will add 10-1/4 inches between the tow vehicle and the towed vehicle. If your current cables will not stretch an additional 10-1/4 inches, you can use the Roadmaster 10 Inch Safety Cable Extension, # RM-650648-10. You will need two of these extensions. If you have not purchased safety cables yet, I recommend...
    view full answer...
  • Is there an Adapter for Towing a Trailer and Carrying a Bike Rack Together
    The Roadmaster Dual Hitch Receiver Adapter, # RM-077-4, is not for use with any type of trailer - tow bars only. What you need is the CURT Multipurpose Ball Mount, # D210. This ballmount was designed for the application you are describing. It has a tongue weight capacity of 750 pounds. Tongue weight will be the combined tongue weight of the trailer, the bike rack, and the bikes. The gross trailer weight capacity is 5,000 pounds. The reciever portion of the multipurpose ball mount has a...
    view full answer...
  • High Low Adapter for Flat Towing 2019 Honda Civic SI that Needs 7 inches of Drop
    We have an adapter that fits your needs exactly with the Blue Ox part # BX88241. This was designed for flat towing applications like yours where 7 inches of drop is needed to allow the tow bar to set as level as possible. This will not reduce the weight capacity of your trailer hitch in any way either. I also attached a help article link that covers picking out the correct high/low adapter as well.
    view full answer...
  • Can Roadmaster Dual Hitch Adapter # RM-077-4 be Used with Tow Dolly and Towing Capacities
    We have actually reached out to Roadmaster and verified that the Dual Hitch Receiver # RM-077-4 can indeed be used with a tow dolly. This has a total towing capacity of 10,000 ls and has a tongue weight rating of 400 lbs. So if you can verify that the weight of your motorcycle and carrier is less than 400 lbs this would work well for you.
    view full answer...
  • RV Bike Rack Recommendation for Use When Flat Towing Vehicle
    At the rear of a trailer or RV the ride quality is very rough when compared to the ride quality at the rear of a passenger vehicle. Reason being the suspension isn't as sophisticated and there is a longer distance between the rear axle and the rear of the trailer which exaggerates the movement of the trailer when hitting bumps. Because of that only a few bike racks were designed to be reinforced enough for that type of use. The Swagman Dispatch part # S44FR is a great RV approved bike...
    view full answer...


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