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  1. Hitch Adapters
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  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

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

Part Number: RM-077-4
In Stock
$188.65
Hitch Adapters
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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 (245)
  • 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   (245 Customer Reviews)

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

by:

Was looking for a way to carry 2 e-bikes on a Hollywood rack, and tow my Jeep, behind my Class A RV. This dual hitch looks like it will do exactly what I want, at least when doing my test set-up. Only reason I didn’t give it a 5star is because when the rack and Blue Ox tow bar were installed, there was significant “slop”. I resolved this problem by buying an adapter at the local hardware store, and it is now tight as it should be.



by:

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

David profile picture

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 profile picture

Richard

4/30/2024

Still works the same as when I purchased it.



by:

This 2"/4" drop for the 2" hitch receiver is heavy duty, and well welded. I bet the customer service is top notch. I've bought from e trailer before and never had a problem, so never needed customer service. Delivered when expected. I will again buy from this company without any worries.



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. profile picture

John O.

3/31/2015

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



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:

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 profile picture

Ed

7/3/2021

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



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:

This is great for flat towing and for the bike rack. Thanx again for the help and advice Jamie



by:

Just received and quality is what I would expect from etrailer.



by:

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



by:

Thanks perfect application



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:

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



by:

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



by:

Well built



by:

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



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:

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. profile picture

Steve P.

1/27/2018

Still working great one year later!!



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. profile picture

Jim M.

8/23/2018

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



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 profile picture

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:

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. profile picture

Leo S.

3/12/2020

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



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 profile picture

Jeff

1/25/2020

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



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. profile picture

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:

Works good


25
245
Show More Reviews

See what our Experts say about this Roadmaster Hitch Adapters

  • Can You Use Bike Rack on Back of Motorhome with Blue Ox Tow Bar and KarGard
    In order to flat-tow a vehicle and carry bikes at the same you'll need a dual hitch adapter like the Roadmaster Dual Hitch Receiver Adapter for Tow Bars part # RM-077-2 or part # RM-077-4. In most cases, your bikes won't come into contact with the vehicle during turns but we can't say definitively that's that case for every vehicle as there are simply way to many factors. That said, the arms on Blue Ox tow bars are pretty long so this will increase your clearance. I'd also recommend a hanging...
    view full answer...
  • Best Way to Tow a Trailer and Attach a Bike Rack to the Same Hitch
    I have a solution but all dual hitch adapters are only rated for flat towing. To tow a trailer and haul a bike rack off of your vehicles hitch, I recommend the Gen-Y Adjustable 2-Ball Mount w/ Stacked Receivers item # 325-GH-514. This adjustable ball mount has four 2" receiver openings that will allow you to use both a hitch mounted bike rack and tow your trailer. This ball mount has a 12,000 lbs towing capacity and a 1,500 lbs maximum tongue weight. This will not reduce your motorhome's...
    view full answer...
  • Can Dual Hitch Adapter be Used for Flat Towing & Bike Rack
    Yes, you can use a dual hitch adapter for flat towing and carrying a bike rack at the same time. You just need the one with the correct rise or drop, and you can choose from the following: - 2" or 4" Drop/Rise: Roadmaster Dual Hitch Receiver Adapter # RM-077-4 - 2" or 6" Drop/Rise: Roadmaster Dual Hitch Receiver Adapter # RM-077-6 - 2" or 8" Drop/Rise: Roadmaster Dual Hitch Receiver Adapter # RM-077-8 - 2" or 10" Drop/Rise: Roadmaster Dual Hitch Receiver Adapter # RM-077-10 Then to...
    view full answer...
  • Is There a Dual Mount Receiver Which Allows For a Cargo Carrier While Towing a Car Using a Dolly?
    The Roadmaster Dual Hitch Receiver Adapter is available in different drop/rise sizes. 4" # RM-077-4 6" # RM-077-6 8" # RM-077-8 10" # RM-077-10 These would allow you to flat or dolly tow a car with a Cargo Carrier # e98874 being used to carry additional gear.
    view full answer...
  • Tow Bar Stowing Position To Bike Rack Clearance With A Roadmaster Dual Hitch Adapter
    Hey Jeff, Since most tow bars have to sit up 90 degrees and then turn to either side to stow you'd almost certainly need to remove a bike rack. The Roadmaster Dual Hitch Receiver Adapter # RM-077-4 you were looking at would allow you to haul both but it along with even their largest version # RM-077-10 would likely still have the bike rack block the tow bar from stowing.
    view full answer...
  • Availability of Dual Hitch Adapter that Works with Towing Trailer
    Hey Mike, so we have hitch extenders that can be used when towing a trailer like the Malone part # MPG544 but the Roadmaster adapter you mentioned is not one that can be used when towing. With that said your trailer would need to weigh under 4,000 lbs to use this adapter and we don't have any similar options with a higher capacity.
    view full answer...
  • Hitch Lock & Anti-Rattle For Roadmaster Dual Hitch Adapter RM-077-4
    There is a hitch lock as well as an anti-rattle device available for your Roadmaster Dual Hitch Receiver Adapter # RM-077-4 but because it has a solid shank, there isn't an anti-rattle hitch lock, as solid shanks prevent the use of an anti-rattle lock. So you will need to get the lock and anti-rattle separately, and this will serve the same function of locking the adapter and preventing rattle; what you will need is the following: - etrailer Trailer Hitch Receiver Lock # e98880 - Roadmaster...
    view full answer...
  • How to Power Blue Ox Patriot 3 with 2022 Ford Ranger with Battery Management System
    We have the outlet kit part # RM-9332 which you'd run to the battery of your 2022 Ford Ranger directly so that the Blue Ox Patriot 3 part # BLU37TR wouldn't get switched off like you mentioned. This will give you the same type of needed to power the Patriot that will be active at all times.
    view full answer...
  • Can Roadmaster Dual Hitch Adapter RM-077-4 be Used with Flat Towing Setup
    Yes the Roadmaster Dual Hitch Receiver Adapter # RM-077-4 can be used with a flat towing setup like you have currently to tow your Fiat 500.
    view full answer...
  • Vehicle Protector Compatible With Dual Hitch Adapter & Blue Ox Tow Bar
    We have an option for you, though the way the Roadmaster Tow Defender Protective Screening # RM-4750 installs onto the receiver means it isn't going to be compatible with a dual-hitch adapter. Instead, what you can use that will work with a dual-hitch adapter and your Blue Ox tow bar is a Blue Ox protective guard: - Blue Ox KarGard Towed Vehicle Protector # BX8870 This will do a superb job of keeping your towed vehicle safe, and because it mounts on your Blue Ox tow bar (on all tow bars...
    view full answer...
  • Hitch Adapter with 2 Inches of Drop to Get a Cargo Carrier to Clear Spare Tire on a Jeep
    You can use Roadmaster high/low adapter # RM-072-2 which offers a 2 inch drop. However, the use of this adapter (or any adapter) reduces the tongue weight capacity if the hitch by 50 percent. So for example if your hitch is rated for 350 pounds tongue weight it is reduced to 175 pounds when using an adapter. So the combined weight of your cargo carrier and the cargo cannot exceed the reduced capacity.
    view full answer...
  • Hitch Adapter to Allowing Towing and Cargo Carrier Installation
    You can use Curt Multipurpose Ball Mount part # D210 to both tow your boat trailer AND use your hitch cargo carrier. Please refer to the linked photo. This item has 500-lbs tongue weight capacity for the receiver and 750-lbs for the ball mount part you'll use to tow. Please note that when mounting an accessory in this receiver, your hitch's tongue weight capacity will be reduced by 50 percent. For a hitch ball you can use # 19260 for a 1-7/8-inch, # 63845 for a 2-inch or # 63847 for a...
    view full answer...
    Image 1 for
  • Length of Shank on the Roadmaster Dual Hitch Receiver Adapter #RM-077-4
    I went out to the warehouse and measured from the center of the hitchpin hole to the back of the 4 inch rise on the Roadmaster Dual Hitch Receiver Adapter, part #RM-077-4. That measurement is 6-3/4 inches so it will be close, you will need to measure from the center of your hitch pin hole to the farthest out part of the bumper to determine if dual receiver will work for your towing setup. The measurement is the same to the back of the 2 inch rise opening. The overall length of this item...
    view full answer...
  • Flat Tow Vehicle While Also Using Bike Carrier
    Yes, this is exactly what the MaxxTow Dual Hitch Extender for 2" Trailer Hitches, # MT70070 is intended for. However, keep in mind that per manufacturer this reduces your hitch rating by 50%. The extender has a weight rating of 400 lbs. tongue weight and gross trailer weight rating of 4,000 lbs. so please compare this to the vehicle you are flat towing. While the # MT70070 is designed to allow you to add an accessory such as a bike rack and use the tow bar, you cannot use an additional...
    view full answer...
    Image 1 for
  • 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...
  • Availability of Dual Hitch Adapter With No Drop
    Having your towbar within 3 inches high or low of level is perfectly acceptable, according to Blue Ox and Roadmaster. If the # RM-077-4 would allow the towbar to be within that amount plus or minus of level, the dual hitch adapter would work just fine. We don't have any dual hitch adapters that have a receiver that would be inline with that of the coach.
    view full answer...
  • Will Load Extender Match the Truckbed Height of 2016 Toyota Tacoma With Factory Hitch?
    The lowest setting of the Erikson Big Bed Load Extender # EM07600 is 18" in height while the lowest setting of the Yakima LongArm Truck Bed Load Extender # Y01149 is measured at 17" high. That will still bring you at an inch higher than your truck bed. If you're carrying a kayak, you can put down some foam blocks like Malone RackPads # MPG314 to lift the kayak up on your truck bed and you can reuse the blocks when you store your kayak in your garage or on the ground. The blocks are 3-1/2"...
    view full answer...
  • Parts Needed to Flat Tow a 2018 Ford Fiesta SE Hatchback
    I would love to help you get absolutely everything that you need to flat tow your 2018 Ford Fiesta SE Hatchback. However, Blue Ox does not make a base plate kit for the non EcoBoost model therefore I recommend you use Roadmaster instead. I typically prefer Roadmaster anyhow as they offer more options for flat towing equipment. I have attached a list of all the parts you will need below: Roadmaster Nighthawk All Terrain Tow Bar part # RM-676 Roadmaster Direct-Connect Base Plate Kit part...
    view full answer...
    Image 1 for
  • Dual Adapter For Flat Towing & Carrying Bike Rack
    While there isn't an adjustable option, there are dual hitch adapters for flat towing that allow you to tow your vehicle and carry a bike rack at the same time. The right one just depends on the amount of rise or drop you need. Also keep in mind the use of an adapter will reduce the tongue weight capacity of your hitch by 50 percent, and that the rise or drop will depend on the way the adapter is turned. - 2" or 4" of Rise/Drop: Roadmaster Dual Hitch Receiver Adapter # RM-077-4 - 2" or...
    view full answer...
  • Solution for Using Tow Dolly and Hitch-Mounted Bike Rack Behind RV
    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. As long as you stay under it's 400 pound tongue weight capacity this is a perfect solution for you. I have attached a short video review below that you can check out as well.
    view full answer...
  • Dual Hitch Adapter Recommendation for Towing More than 5,000 lbs
    We have the # RM-077-4 which has a towing capacity of 10,000 lbs and is designed for use in flat towing setups.
    view full answer...
  • Potential Interference w/Toad and Cargo Carrier when Turning Using Roadmaster Dual Hitch Receiver
    Whether or not there will be interference when using a cargo carrier in the Roadmaster dual receiver # RM-077-4 depends on several factors. The size of the carrier, the length of the tow bar, the height and width of the vehicle all play a role in determining interference. If the cargo carrier has a rise in the shank that could raise it higher than the front end of the vehicle and there would be no interference. The only way to know for sure is to test it. The adapter is going to move...
    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...
  • 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...


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