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Roadmaster Dual Hitch Receiver Adapter, 8" Drop/Rise

Roadmaster Dual Hitch Receiver Adapter, 8" Drop/Rise

Item # RM-077-8
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Roadmaster Hitch Adapters - RM-077-8
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Add a bike carrier or cargo carrier with the dual hitch receiver. Call 800-298-8924 to order Roadmaster hitch adapters part number RM-077-8 or order online at etrailer.com. Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Roadmaster Dual Hitch Receiver Adapter, 8" Drop/Rise. Hitch Adapters reviews from real customers.
  • All Info
  • Reviews (50)
  • Q & A (43)
  • Photos
  • Why etrailer?

Roadmaster Hitch Adapters - RM-077-8

  • Hitch Extender
  • Dual Hitch Adapter
  • Fits 2 Inch Hitch
  • 10-3/4 In Extension
  • Roadmaster
  • 10000 lbs GTW
  • Steel

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
  • Maximum drop: 8"
  • Maximum rise: 8"
  • Gross towing weight: 10,000 lbs
  • Tongue weight: 400 lbs
  • Limited lifetime warranty



Dimensions of Hitch Adapter

Note:

  • Not for use when towing a trailer.
  • Using this extension will reduce your hitch's tongue weight capacity by 50 percent.


077-8 Roadmaster Dual Hitch Receiver Adapter, 8" Drop/Rise

Installation Details RM-077-8 Installation instructions




Customer Reviews

Roadmaster Dual Hitch Receiver Adapter, 8" Drop/Rise - RM-077-8

Average Customer Rating:  4.9 out of 5 stars   (50 Customer Reviews)

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

- RM-077-8
by:

Great product, I really love this thing! It made it possible to mount a winch to pull cars onto my trailer. Quality is great! Very solid welds. 658224


Comments
I have used this hitch adapter for a Winch that I can use to pull cars up onto my trailer. AWSOME PRODUCT! It keeps re-inventing itself every time I use it.
Jake P - 06/16/2020

81028

- RM-077-8
by:

I received this product in record time. This is a quality product that solved the problem of using both my bike rack and cargo carrier on the back of my RV. I will definitely be visiting etrailer.com for my future needs. 507942


Comments
Glad you like the dual hitch adapter! The adapter has a 400 lb tongue weight capacity, which means that the cargo carrier, whats carried on it, the bike rack and the bikes cannot weigh more than 400 lbs. This figure will be lower if the tongue weight capacity of your RV is less than 400 lbs.
-- Mike L - 05/13/2018

38456

- RM-077-8
by:

This hitch adapter works great! It allows me to use my bike rack with my cargo rack so we can haul our bikes along with all of our other stuff when we head out on our summer vacation. I also use it regularly as a hitch extender when I need to haul something in my truck with the tailgate down, and we want to take the bike rack. Only, drawback is it is pretty heavy duty (probably more than what I need), but if you are using it with a heavier trailer (e.g., camper or big boat), it probably should be that heavy duty. 660936



- RM-077-8
by:

I ordered this to adapt my bike rack to my hitch while I flat towed my car with a Blue Ox Aventa tow bar. I was concerned about turn radius and I stumped the etrailer customer service. I ended up with about 18” of clearance and 47” from the adapter to car. I feel it is sufficient. 494466



- RM-077-8
by:

Very durable, have been using with my Class A RV for over a year with no problems. Can get the bikes off without unhitching the car. Excellent customer service thanks so much! 677947



- RM-077-8
by:

Wow, excellent customer service. Thank you Jennifer is rare in our world today to say that. Hitch adapter shipped same day on a late afternoon order. No extra effort; just the way this company refreshingly does business. Part arrived promptly and well packaged. No nicks or scratches on the part. Truly was well stored and handled at their warehouse. Following are some pictures of the hitch adapter installed. 606926



- RM-077-8
by:

Very well built and does a wonderful job of allowing me to tow with my lifted Suburban. 898903



- RM-077-8
by:

Great heavy duty product. I do have some surface rust which started showing after about 6 months 898674



- RM-077-8
by: 09/18/2020

It actually ended up being too low to use with my truck. I sold it to a motor home owner. Then bought a 6" drop. 883117


Comments
We have an article to help you choose the right High-Low Adapter for your towing setup. I linked it for your convenience.
-- Victoria B - 10/06/2020

101889

- RM-077-8
by:

The hitch is heavy-duty and works as expected. We can mount a bicycle rack or an extra luggage rack on the back of the RV and still pull our tow vehicle without any problems 864362



- RM-077-8
by:

Heavy duty and well constructed. I am using on the back of my camper so I can have a cargo carrier and a bike rack. I needed the 8" to clear the cargo carrier. They shipped this super fast too. 844500



- RM-077-8
by:

Works great. Bought this so I can tow a small trailer behind my fifth wheel and have a bike rack on it as well. Very sturdy/well built. 820937



- RM-077-8
by:

Great hitch, as described. Fast shipping and drop shipped to my destination was not an issue. Thanks 819458



- RM-077-8
by:

This product was well made and performed perfectly. Allowed us to carry 2 extra bikes for grandchildren behind our motorhome 809063



- RM-077-8
by:

Just as described, quick shipment. Needed a drop hitch cause our motor home was raised 8 inches with its recent 4WD conversion and the hitch location was too tall to tow the Jeep. This looks like it will do the trick, even better if our bike rack has enough room to be mounted on the second receiver, we'll see. 808991



- RM-077-8
by:

Heavy duty. Nice hitch. Happy with the quality 805384



- RM-077-8
by:

I was able to use the Tow Bar four times to pull a Ford Fiesta. It worked great. It was easy to hookup. The car follow the RV with no problems. I need to develop a technique to disconnect the car from the RV. It is still hard to unhook the tow bar from the car even after I lift the release handles. 800083



- RM-077-8
by:

Outstanding Quality! Solid as a rock construction. Superior welds. And Ultra fast delivery. And yes I paid for what I got. It was worth it. 783907



- RM-077-8
by:

Looks very well made, welded and powder coat. 776737



- RM-077-8
by:

Perfect solution for hauling boat and b ikes 764206



- RM-077-8
by:

I use this with my cargo carrier on both of my trucks. I swap it around for when the carrier is scraping the pavement and then when I use it on my truck that has a lift kit. 745139



- RM-077-8
by:

Very pleased with the product. You could tell that they put time and care into jigging and welding it. Very pleased with the craftsmanship and workmanship. Highly recommend!! 742393



- RM-077-8
by:

hitch is perfect to towing our Ford C-Max at the proper height. We also use a bike rack on the top hitch to carry our two bikes. 730676



- RM-077-8
by:

The item I received was exactly as advertised, and it arrived very promptly. I appreciate good service, and etrailer definitely provided that. 730403



- RM-077-8
by:

Purchased this to use on a 2016 Winnebago Adventurer 37F towing a 2013 Honda CR-V. Attached a Schwegman 2 bike rack on top with a Blue Ox towbar below. Works great, plenty of clearance between the bikes and the car. Only issue is the hole for the pin when attached to the RV could be a little larger. The blue ox locking pins are a tight fit 729666


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Show More Reviews

Ask the Experts about this Roadmaster Hitch Adapters

  • How to Use Both a Bike Rack and Cargo Carrier on the Same 2 Inch Hitch
    I do have an option for you but we do not have anything that can attach to the Malone 2" Dual Purpose Hitch Receiver part # MPG544 and move the connection point for the 2nd receiver tube multiple feet in the air. Instead, I recommend using the Roadmaster Dual Hitch Receiver Adapter part # RM-077-8 which unlike the Malone adapter, will not reduce the tongue weight capacity of your hitch by 50 percent. This adapter has a distance of 10-1/4" between the two hitch pin holes (see photo). I...
    view full answer...
  • Can Roadmaster Dual Hitch Receiver Adapter be Used for Towing and a Bike Rack
    You are on the right track of thinking, but the Roadmaster Dual Hitch Receiver Adapter # RM-077-8 actually isn't rated for towing a trailer so we need to look at a slightly different with the Gen-Y Hitches. For your application you could probably use part # 325-GH-303 or # 325-GH-304 as these are somewhat similar to the Roadmaster that you were previously looking at and they are definitely rated for towing and utilizing your bike rack. When it comes to the correct height of your ball...
    view full answer...
  • Recommended Hitch Extension and Drop for Using Bike Rack on Jeep Wrangler with Spare Tire
    Normally the Roadmaster Dual Hitch Adapter # RM-077-8 is designed for use with a flat towing setup but I don't really see the harm in pairing this with your bike rack. It measures 10" long and has an 8" drop like what you're looking for. You're going to need a hitch pin like the Curt # C21500, but I also recommend tossing in the etrailer Anti-Rattle Hitch Stabilizer # e99007 since you'll be adding another connection point to your setup.
    view full answer...
  • Dual Receiver Hitch Adapter to Allow Towing and Use of Hitch Cargo Carrier
    The Roadmaster Dual Hitch Receiver Adapter # RM-077-8 is designed only for use with a tow bar that is pulling a vehicle with all 4 wheels on the ground. It cannot be used for a towing a trailer and using an accessory cargo carrier because it is not able to handle the trailer tongue weight. Instead you can use an adapter made for towing, such as the Malone # MPG544 along with an extra-long 2-inch ball mount like # 80232. You will need additional hitch pins # PC3 or anti-rattle hitch locks...
    view full answer...
  • Can Roadmaster Dual Hitch Adapter # RM-077-8 Be Used to Flat Tow Lifted Jeep
    The Roadmaster Dual Hitch Receiver Adapter # RM-077-8 that you referenced is designed for exactly your situation. It will allow your tow bar to set level as you flat tow the lifted vehicle.
    view full answer...
  • Dual Hitch Receiver Compatible with Towing a Car Dolly
    The Roadmaster Dual Hitch Receiver Adapter, 8" Drop/Rise # RM-077-8 has a towing capacity of 10,000 lbs but the tongue weight is limited to 400 lbs. As long as the tongue weight of your loaded tow dolly and whatever accessory you put in the top receiver is under the 400 lbs then you'll be just fine.
    view full answer...
  • Can Roadmaster Dual Hitch Receiver Adapter be Used to Level Roadmaster Tow Bar
    Yes, the Roadmaster Dual Hitch Receiver Adapter, 8" Drop/Rise # RM-077-8 that you referenced is actually designed specifically for your situation to allow a tow bar to sit as level as possible. I attached a review video for this for you to check out that shows how it works/installs as well.
    view full answer...
  • How to Carry a Hitch Mount Bike Rack on Motorhome While Also Using a Tow Dolly
    Yes, the Roadmaster Dual Hitch Receiver Adapter, 8" Drop/Rise # RM-077-8 is actually rated for a tow dolly so you can use it for that and a bike rack!
    view full answer...
  • Can Roadmaster Dual Hitch Receiver Adapter # RM-077-8 be Used to Carry Scooter Carrier
    The upper hitch opening of the Roadmaster Dual Hitch Receiver Adapter # RM-077-8 that you referenced has a 400 lb tongue weight capacity. So as long as the weight of your scooter and carrier is less than 400 lbs together this would work for your needs. You should note that when using this adapter you end up cutting the tongue weight capacity of the hitch by 50 percent so you'd need to make sure that the hitch of your vehicle has twice the capacity needed for the weight of your scooter...
    view full answer...
  • Distance from Pin Hole Center to Back of Support Arm on Roadmaster Dual Receiver RM-077-8
    I measured the Roadmaster Dual Hitch Receiver Adapter # RM-077-8 for you. On the long support arm the distance from the back of it to the center of the hitch pin hole is 6-5/8 inches. But to the support gusset that measurement is 4-3/4 inches. I have included a picture showing these measurements for you.
    view full answer...
  • Which Dual Hitch Adapter Has the Highest Tongue Weight Capacity
    The dual hitch adapter we carry with the highest tongue weight capacity is the Roadmaster Dual Hitch Receiver Adapter part # RM-077-6 for 6" rise or part # RM-077-8 for 8" rise. They both have a 400 lb tongue weight capacity. Please note that this adapter is designed for flat towing only. If you can give me a better idea of what you are using the adapter for we may have alternative options if the above will not work.
    view full answer...
  • Trailer Hitch for Towing and Carrying a Bike Rack
    First, in order to choose the correct ball mount, there are a couple measurements you'll need to take. First, make sure both your vehicle and trailer are parked on level ground; you'll then want to measure from the ground to the top of the inside of your hitch receiver. Next, measure from the ground to the bottom of your trailer's coupler and find the difference between the two measurements. If the height of your hitch is greater, you will need a ball mount with that amount of drop....
    view full answer...
  • Extending Hitch for Bike Rack on 2019 Subaru Outback Wagon
    There are many bike racks compatible with the 4 inch recessed hitch. You will just want to find one with a long shank. Each bike rack we carry will have the measurement from the hitch pin hole to the closest part of the rack so you can confirm fit. For example, the RockyMounts MonoRail 2 Bike Platform Rack - 2" Hitches - Tilting - Wheel Mount # RKY10004 measures 11 inches when carrying and 6-1/4 inches when folded close to the vehicle. Using a hitch extender will reduce the hitch...
    view full answer...
  • Can a High-Low Adapter and Dual Hitch Receiver Adapter Be Used In Combination
    The Roadmaster Dual Hitch Receiver Adapter, 8" Drop/Rise # RM-077-8 is made to allow you to tow as well as use an accessory. It will allow you to flat tow up to 10,000 lbs and will allow a tongue weight of 400 lbs. The other dual receiver options do not have the capacity to tow a medium sized vehicle as well as a cargo carrier. The issue you will find with needing a 6 inch high-low adapter that using two adapters at the same time will put too much torque on the hitch and will also...
    view full answer...
  • Flat Towing Jeep and Carrying 300 Pound Motorcycle Behind RV
    We do have dual hitch receivers available that feature the kind of tongue weight capacity that should support both the weight from your flat towed Jeep and motorcycle, such as with the Roadmaster # RM-077-6 that has a 400 pound tongue weight limit. As long as the combined tongue weight of your Jeep and motorcycle (be sure to include the weight of the carrier itself as well) falls under this limit then the adapter will be up to the task. The Jeep really won't produce much tongue weight...
    view full answer...
  • Adapter Recommendation to Allow Carrying Bike Rack and Towing Trailer
    The best solution we'd have would be the adapter part # D210 which is a ball mount that has a hitch opening above the ball mount platform so that you can install a bike rack into it. The # RM-077-8 cannot be used when towing a trailer as it was only tested for use when flat towing a vehicle. I attached a review video for the # D210 for you to check out as well.
    view full answer...
  • Availability of Dual Hitch Receiver Adapter with 6 Inch Drop
    The closest option we have available to what you are needing is the Roadmaster Dual Hitch Receiver Adapter # RM-077-8. This adapter features dual 2 inch receivers and has either an 8 inch rise or 8 inch drop for the bottom receiver. It has a 10,000 pound towing weight capacity and a 400 pound tongue weight limit. I have attached a short video demonstration on this product that you can also check out.
    view full answer...
  • How to Carry a Bike Rack or Cargo Basket and Tow a Trailer with a 2010 Toyota Sienna
    It sounds like you are trying to tow a trailer and carry a bike rack or cargo carrier on your 2010 Toyota Sienna. If this is the case then I do have options for you but the Roadmaster Dual Hitch Receiver Adapter part # RM-077-8 is only designed for flat-towing and we do not have a dual hitch adapter that will work with a 1-1/4" trailer hitch receiver. Instead, I recommend upgrading to a 2" trailer hitch receiver for which I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver part...
    view full answer...
  • Can Dual Hitch Receiver Carry Bike Rack While Pulling a Car Dolly
    A dual hitch receiver adapter like # RM-077-8 would indeed allow you to carry your bike rack while flat towing, as long as the tongue weight capacity of your hitch isn't exceeded. The # RM-077-8 adapter will lower your hitch tongue weight capacity by 50 percent, so you'll want to ensure that the weight of the bikes and rack plus the tongue weight of the loaded car dolly doesn't exceed 50% of your hitch's tongue weight capacity. The hitch tongue weight capacity can be found on the ID...
    view full answer...
  • Hitch Extender for Cargo Carrier with Lift
    I couldn't recommend the use of the # RM-077-8 with your 12 inch extender as that would be way too long, but it's possible that this by itself would work for you. You'd end up with an extension of 10-3/4 inches instead of the 12 you have but it would give you a rise of 8 inches total.
    view full answer...
  • Recommended Extension for RV for Pulling a 2016 Kia Soul
    The Roadmaster Dual Hitch Receiver Adapter, 8" Drop/Rise # RM-077-8 is designed to allow you to flat tow a vehicle like your 2016 Kia Soul and also use a RV rated bike rack or cargo carrier in the other receiver. It has a total tongue weight rating of 400 lbs, but your trailer hitch may further reduce that number. You can flat tow up to 10,000 lbs with this adapter, but again your trailer hitch may further restrict that capacity. You cannot use a ball mount with this adapter. From...
    view full answer...
  • Recommended Adjustable Ball Mount for Use With Friction Sway Control Bars
    The photos did not come through but it sounds like you need a new ball mount to level the trailer while towing. In order to do this you will need to measure from the ground to the bottom of the coupler on the trailer while level and then subtract that measurement from the ground to the top of your hitch receiver opening. This will give you the correct amount of drop you will need to look for in a ball mount. I have also attached a help article that will walk you through this entire process...
    view full answer...
  • Can the 8 Drop Dual Hitch Adapter Be Used for Towing
    I do have an option for you but none of the dual hitch adapters that provide adequate drop can be used for towing. Instead, you'd need to go with a standard ball mount with the drop you need like the Curt Ball Mount part # C45090. Then, you can carry the rod rack on the tongue of the trailer (if a-frame) with the Swagman Straddler part # S80503 or on the front of the vehicle with a front mount trailer hitch, the Curt Front Mount Trailer Hitch Receiver part # C31028.
    view full answer...
  • Adapter Needed to Tow Bruno Chariot with a 2018 Ford Transit
    Dual hitch receivers and adapters like parts # RM-077-8 and # RM-048-8 are meant to be used for flat towing only but I do have a solution for you. The Gen-Y hitches basically give you additional receivers at varying heights and they can be used for towing and accessories. For your application we have the Gen-Y Adjustable 2-Ball Mount w/ Stacked Receivers # 325-GH-314. This fits a 2" trailer hitch and offers 7-1/2" of drop/rise. It is rated for 10K towing and 1.5K tongue weight although...
    view full answer...
  • Solution for Towing Pop Up Level and Also Carrying Bike Rack with Yukon
    First we should determine how much drop you'd need to get your trailer level. Basically you need to measure from the top of the hitch opening down to the ground and then measure from the bottom lip of the coupler down to the ground and compare the two measurements. That difference is how much rise/drop you'd need. From there we can go and determine what would be best bike rack solution. For example we have the Curt # D210 has a hitch opening for a bike rack above a ball mount that...
    view full answer...
  • Adapter with a Rise to Carry Wheelchair Carrier Higher Up
    I do have some solutions for you but the Roadmaster adapter # RM-077-8 would not work because it is only rated for carrying accessories while flat towing a vehicle behind a motorhome. If your vehicle has a 1-1/4 inch hitch receiver opening then you could use # HT5R to get some extra height if your hitch is a Class I (max capacity 300 pounds but limited to tongue weight capacity of hitch). If you have a Class II hitch you would instead use # MT70355 (max capacity 350 pounds). Keep in...
    view full answer...
  • Can I Tow A 2018 Chevy Equinox Using A Maxx Tow Dual Hitch MT70070
    The Roadmaster Dual Hitch Receiver Adapter # RM-077-8 that you referenced is designed for flat towing vehicles and an additional accessory like a bike rack, for example, with the additional 2 x 2" opening. It does provide an 8" drop and you will not need an additional receiver to accomplish this. It allows your tow bar to set level as you flat tow the vehicle. Hitch pins and clips are not included so if you need, the Curt Pin and Clip For Class III, IV and V Trailer Hitch # C21500 is...
    view full answer...
  • Dual Hitch with 6 Inches of Drop
    Sure is. You need part # RM-077-6 which has a rise or drop of 6 inches depending which way you use it. It's exactly like part # RM-077-8 except for the amount or rise/drop.
    view full answer...
  • Can I Use Roadmaster Dual HitchReceiver Adapter to Carry Cargo Basket and Bike Rack on Roadtrek RV
    Yes. You can use the Roadmaster # RM-077-8 on your Roadtrek RV's 2" receiver to carry both a cargo carrier like the Curt # C18153 and a bike rack without any issues. It should be mentioned that because of the extra movement that often occurs at the back of an RV you will need to use a bike rack that is rated for use on the back of an RV. Since you need a 4 bike rack rated for use on the back of an RV, you'll want to use something like the Thule Hitching Post Pro # TH934XTR. Since this...
    view full answer...
  • How To Carry Bikes While Flat-Towing a Chevy Sonic Sedan
    Yes, I do have an option for you to carry bikes with your flat-tow setup. However, since there is not a trailer hitch for your vehicle yet and you don't want to use a trunk mount or roof rack bike rack then you will have no other option but to use a dual hitch adapter and place the bikes on a hitch mounted back rack between the tow vehicle and toad. For this, we have a few options for you depending on your rise/drop needs. In order to determine what your rise/drop needs are we will...
    view full answer...

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Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Edited by:
Lindsey S
Video Edited:
Jacob T
Video by:
Kathleen M
Installed by:
Cole B
Installed by:
Robert C
Written by:
Shelly K
Updated by:
Sarah W
Updated by:
Hannah L
Updated by:
Isabelle B

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