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Roadmaster High-Low Adapter for Tow Bars - 2" Hitches - 4" Rise/Drop - 6K GTW, 200 lbs TW

Roadmaster High-Low Adapter for Tow Bars - 2" Hitches - 4" Rise/Drop - 6K GTW, 200 lbs TW

Item # RM-070
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Accessories and Parts RM-070 - 4 Inch Rise/Drop - Roadmaster
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Make up for the height difference between your RV and towed vehicle with this hitch adapter. Provides either a 4" drop or a 4" rise for high or low ground clearance. Hollow shank is lightweight. Call 800-298-8924 to order Roadmaster accessories and parts part number RM-070 or order online at etrailer.com. Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Roadmaster High-Low Adapter for Tow Bars - 2" Hitches - 4" Rise/Drop - 6K GTW, 200 lbs TW. Accessories and Parts reviews from real customers.
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Roadmaster Accessories and Parts - RM-070

  • Tow Bar
  • Hitch Adapter
  • Roadmaster
  • High-Low Adapter
  • Fits 2 Inch Hitch
  • 4 Inch Rise/Drop

Make up for the height difference between your RV and towed vehicle with this hitch adapter. Provides either a 4" drop or a 4" rise for high or low ground clearance. Hollow shank is lightweight.


Features:

  • Allows for proper positioning of tow bar
    • Makes up for height difference between RV's hitch and towed vehicle's base plates
    • Also lets you mount a bike rack, cargo carrier, or other 2" hitch accessory
  • Provides either drop or rise for adequate ground clearance
  • Constructed of sturdy steel
    • Hollow shank is lightweight
  • Resists rust and corrosion with black powder coat finish
  • Hitch pin and clip or hitch lock sold separately
  • Made in the USA


Specs:

  • Application: 2" x 2" trailer hitch receivers
  • Drop/rise: 4"
  • Receiver: 2" x 2"
  • Tongue weight: 200 lbs
  • Gross towing weight: 6,000 lbs
  • Length:
    • 6" From center of hitch pin hole to angled brace
    • 10-1/4" From center of hitch pin hole to center of pin hole
  • Limited Lifetime Warranty


Dimensions

Note: This adapter is designed to flat tow a vehicle only. Do not use to tow a trailer. When using with a hitch-mounted accessory, such as a bike rack or cargo carrier, the tongue weight of your hitch will be reduced by at least 50 percent.


Most tow systems require some sort of hitch accessory to either raise or lower the tow bar to an appropriate level. The "Safe Zone" for a motor-home-mounted tow bar ranges from 3" above level to 3" below. Car-mounted models must be absolutely level. This high-low adapter can provide you with the necessary drop or desired rise to achieve a level tow bar setup.



070 Road Master Hi-Low Hitch Adapter - 4" - 6,000 lbs GTW; 200 lbs TW

Installation Details RM-070 Installation instructions




Customer Reviews

Roadmaster High-Low Adapter for Tow Bars - 2" Hitches - 4" Rise/Drop - 6K GTW, 200 lbs TW - RM-070

Average Customer Rating:  4.9 out of 5 stars   (140 Customer Reviews)

Make up for the height difference between your RV and towed vehicle with this hitch adapter. Provides either a 4" drop or a 4" rise for high or low ground clearance. Hollow shank is lightweight.

- RM-070
by:

Thank you so much Geoff for all your help and getting this to us in time for our vacation! You are so kind, knowledgeable and look forward to coming to you for all our motor home needs!! 866190



- RM-070
by:

This adapter brought the towbar level between the toad and the motorhome. This little detail is very important for safe, trouble-free towing. 863724



- RM-070
by:

Works great 855348



- RM-070
by:

Very sturdy, well-designed extension. The next step is to install and determine if the tow bar cabling requires adding any length. Hopefully, it does not. 836810



- RM-070
by:

The product was as expected but I would like to speak about the service and knowledge of Noah. He was very helpful and took time in making sure I was ordering the correct items. 828941



- RM-070
by:

Purchased this to tow my Jeep behind my motorhome. Need the drop to properly align the towbar. Shortly afterwards, I lifted the Jeep and changed the front bumper. This unit was no longer needed. Only used it maybe twice. With that said, it appears well made. Very strong and capable. Only suggestion. I would like it to have more than one pin hole so it can be set farther into the receiver. 816623



- RM-070
by:

I have been satisfied with every product I,ve ordered from etrailer. the returns have never been a problem. Christina in the return dept. was so helpful. I would refer the co. as a 5 starco. to do business with. Thank you so much 809552



- RM-070
by:

Easy to install. Well made. Had to go buy a receiver pin for it. Consider including one. 802695



- RM-070
by:

Does the job! 798701



- RM-070
by:

etrailer was recommended to me by another RV'er. After talking with Paula S I can fully understand why the company was recommended. She was very helpful and knowledgeable concerning my questions. The product I ordered, a high/low hitch receiver for my motor home, arrived promptly and was exactly what I needed. It appears customer service is a big priority to them. Highly recommend. 797651



- RM-070
by:

works fine and hopefully last a long ti me. 785718



- RM-070
by:

It is very sturdy. I used it right away and it did great. Thanks 782415



- RM-070
by:

Heavy duty and sturdily built. Great customer service and instant shipping. 774145



- RM-070
by:

Perfect and fast 773979



- RM-070
by:

Very pleased from the time Christina took my order and the day it arrived as promised. 764397



- RM-070
by:

I’ve ordered several times from etrailer. The order department is alway helpful, needed items have always always been stocked and shipping was quick and efficient. Very good experience. 756084



- RM-070
by:

I purchased this product to use with a bicycle rack on my truck. It works perfectly and is really well built. I am also impressed with etrailer as a vendor. They are super knowledgeable and easy to work with. 750081



- RM-070
by:

Great workmanship. Timely delivery. Easy and responsive service. 744704



- RM-070
by:

Needed to drop the tow bar to match the new vehicle level for better tow control. Every thing we use is Roadmaster it works the best. 744431



- RM-070
by:

Had ordered a different hitch riser that wouldn't work because of the bumper on the motorhome, returned it and ordered one that Lindy A suggested. It just arrived about an hour ago , l put it on and everything is good. Thanks so much for your help, never seem to go wrong dealing with you guys, Thanks again Dave 737351



- RM-070
by:

Is the perfect fit for pulling my 2019 Chevrolet Colorado. Used it from northern Indiana to Huntsville Alabama with no problems. 736225



- RM-070
by:

Product came well before I expected it, since I chose ground freight. Every time that I buy from ETrailer, I am very satisfied, both with the product and with the delivery. 718572



- RM-070
by:

Fits as it should Spears to be quality made. etrailer made it fast and easy to purchase and receive the items. 692212



- RM-070
by:

It was as pictured and described. Worked perfectly. 691503



- RM-070
by:

once again etrailer pulls through. the knowledge and experience (kirsten) and phone conversaton will bring me back again thanks ( big shout out) 680741


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Show More Reviews

Ask the Experts about this Roadmaster Accessories and Parts

  • Parts Needed to Flat Tow 2006 Jeep Liberty
    There are a number of parts required to flat tow your 2006 Jeep Liberty, which I'll list for you. These parts are all needed and are the best value for your Jeep: - Base Plate Kit: Roadmaster Direct-Connect Base Plate Kit # RM-521423-5 - Tow Bar: etrailer SD Non-Binding Tow Bar for Roadmaster Direct-Connect Base Plates # e74ZR - Wiring Kit: Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56203 - Supplemental Braking System: Roadmaster 9700 Portable Supplemental Braking...
    view full answer...
  • Is Hitch Pin and Clip Included with Roadmaster High-Low Adapter RM-070
    The Roadmaster High-Low Adapter # RM-070 does not come with a hitch pin and clip or lock. It is sold separately. For a pin and clip, you can use part # PC3, or for a lock, we have part # RM-315 for a single lock, or part # RM-316 for a pair of keyed alike locks.
    view full answer...
  • How to Adjust Hitch Height of RV To Allow Vehicle to Flat Tow with Tow Bar Level
    Sounds like what you are looking for is a high low adapter like part # RM-070 which will allow you to raise or lower the hitch height by 4 inches. I also attached a link below that shows how to pick out the correct high low adapter as well.
    view full answer...
  • How Much Length Will the RoadMaster High-Low Drop # RM-070 Add to Flat Towing Setup
    The RoadMaster High-Low Drop # RM-070 would extend your tow bar out about an additional 10 inches. If you don't need the additional drop of 4 inches then this adapter wouldn't be needed as it is not a requirement for flat towing a vehicle. If you did need it the additional length wouldn't be too big of a deal. When you are already flat towing a vehicle behind your RV what's another 10 inches? I attached a picture that shows this adapter being used to flat tow a Mazda Miata.
    view full answer...
  • Recommendation to Gain Ground Clearance When Carrying a Scooter Carrier and Scooter
    What I would recommend is the Curt MultiPurpose Ball mount part # D210. This product will give you 6 inches of rise for your carrier without cutting the tongue weight of your hitch in half like most hitch extenders do. Check out the review video I attached for this product.
    view full answer...
  • Tongue Weight Capacity of RoadMaster High-Low Drop Adapter # RM-070
    When you have all 4 wheels of the toad on the ground, the tongue weight is next to nothing. The 100 pound rating does account for sudden but brief increases in tongue weight such as bumps in the road. The idea of using a high-low adapter like # RM-070 is so that the tow bar is level. A level tow bar means the tongue weight will be low.
    view full answer...
  • Choosing a Ball Mount
    I think we can help you out here. We have several different adjustable ball mounts and ball mounts with with a fixed drop. If you are going to tow only one particular trailer, a fixed ballmount would probably be your best bet. To determine the rise/drop needed, measure from the top of the receiver to the ground. Then, with the trailer level, measure from the bottom of the coupler to the ground. The difference between these two measurements is the rise or drop you will need. The adjustable...
    view full answer...
  • Parts Needed to Flat Tow 2020 Honda Fit
    We have all the parts required for you to flat tow your 2020 Honda Fit, and I'll make a list like you were wanting to make it easy to order. What you need are the following: - Base Plate Kit: Roadmaster Direct-Connect Base Plate Kit # RM-521571-5 - Tow Bar: Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar with LED Lights # RM-676 - Wiring Kit: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 - Roadmaster FuseMaster Fuse Bypass # RM76511 and # RM76512 - Supplemental...
    view full answer...
  • Will Roadmaster High-Low Adapter # RM-070 Work with Falcon All-Terrain Tow Bar and Tow Defender
    The Roadmaster High-Low Adapter, part # RM-070, is designed for use with a tow bar only. It will work with the Roadmaster Falcon All-Terrain Tow Bar, part # RM-522, you have referenced. This adapter is meant to be used when towing a rolling load on four wheels so it will not encounter any tongue weight or downward force of over 100 lbs. The tongue weight you will have on the adapter when towing a vehicle with the four wheels down will mainly be the weight of the stinger that is inserted...
    view full answer...
  • Availability of Hitch Adapter With a 4 Inch Rise That Will Fit a Thule Bike Rack
    You can use the Curt Multipurpose Ball Mount, part # D210, with a Thule bike rack that fits a 2 inch receiver. The ball mount receiver has a high enough tongue weight capacity at 350 pounds to handle the weight of the rack plus the bikes, and the drawbar has a total tongue weight capacity of 750 pounds. It will provide a rise of 4-3/4 inches above the top of the receiver opening on the hitch. It will help with bottoming out on vehicles that have low ground clearance.
    view full answer...
  • 4 Inch High-Low Drop used with Cargo Carrier
    I would not use part # RM-070 with your cargo carrier. It is meant for use with a towbar while towing a vehicle on all 4 wheels and does not have a weight capacity suitable for cargo carriers. The part that would work for your application is part # V75090. It has a tongue capacity of 500 pounds, meaning that the total weight of your cargo carrier and cargo cannot exceed 500 lbs. It will provide 6 inches of rise to get your carrier away from the exhaust.
    view full answer...
  • How to Measure to Determine the Right High/Low Adapter Needed to Flat Tow a Honda Fit Level
    To determine which hi/low adapter is needed when flat towing your Honda Fit you will first need to have both the vehicle and the RV parked on level ground. On the RV, measure from the ground to the top of the receiver opening on the trailer hitch. Then on the Fit, measure from the ground up to the center of the base plate brackets the tow bar attaches to. The RV is likely higher so the difference in height is the amount of drop you will need. Most tow bars can be mounted within a...
    view full answer...
  • Can Roadmaster High Low Adapter with Lower Capacity that Tow Bar Be Used Safely
    As long as the tow bar and high-low adapter are rated for at least the weight of the vehicle you are flat towing you'd be fine with one being rated for less weight. So if the 4 inch high-low adapter part # RM-070 will allow your to tow your Colorado level and the vehicle weighs less than 6,000 lbs this would be a great solution that would be perfectly safe. From what I was able to find your Colorado would weigh at most 4,520 lbs so you'd be fine.
    view full answer...
  • Cargo Carrier With Rise Shank Recommendation for a 2014 Toyota Sienna and Curt Hitch
    The best solution I can recommend for you would be to get a cargo carrier with a rise built into the shank so that it would sit high enough so that it wouldn't drag. The # RM-070 that you referenced has only been tested for use in flat towing setups. If you used it with a cargo carrier you would void the warranty. For a cargo carrier with 4-1/2 inches of rise I would recommend the Rola Cargo Carrier part # 59550. Check out the review video I attached as well. I know this probably...
    view full answer...
  • 4 Inch High/Low Adapter Recommendation for a 2001 Fleedwood Bounder Towing 2013 Honda Fit
    I would go with the 4 inch drop like the RoadMaster High-Low Adapter part # RM-070 that you referenced for your 2013 Honda Fit being towed by a 2001 Fleetwood Bounder Class A motorhome. That would put you withing a 1/2 of an inch of being perfectly level and I believe would be your best option without breaking the bank on a 3 inch drop adapter like the Blue Ox High-Low Adapter # BX88235.
    view full answer...
  • Will 2-Bike Bike Rack with Hitch Adapter Clear Bumper on 2013 Kia Sportage
    Most likely you will have plenty of bumper clearance when using a two-bike bike rack with your Kia Sportage, Curt hitch and Roadmaster adapter. But there is an easy measurement you can take to make sure. All you have to do is measure from the center of the hitch pin hole on the adapter straight back to the distance required to clear the rear bumper. I have included a link to an FAQ article that will help. If the distance that you come up with is less than the distance from center of...
    view full answer...
  • 2007 Lincoln Navagater to carry a power chair on carrier about 420 Lbs
    You are correct. The RoadMaster 4 Inch Hi-Lo Drop, part # RM-070 is meant for use with a tow bar used for towing a vehicle. It is meant to tow a rolling load, not a situation where more than 100 lbs of downward force is applied to it.
    view full answer...
  • Hitch and Ball Mount Recommendation for a 2008 Nissan Rogue
    For your 2008 Nissan Rogue I would recommend a Class III hitch like the Draw Tite Hitch part # 75902 as it would have plenty of capacity for towing your trailer and would give you greater flexibility for future hitch accessories like bike racks or cargo carriers. Since you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes...
    view full answer...
  • Availability of a Hitch Adapter that will Give 4 Inches of Rise
    You can use the Curt Multipurpose Ball Mount, part # D210. It will provide a rise of 4-3/4 inches above the top of the receiver opening on the hitch. This should provide you with the additional height you need, plus the ball mount receiver has a high enough tongue weight capacity at 350 pounds to handle the weight of your sign pretty easily. You should note that when you use any type of adapter or extender you cut the tongue weight capacity of the hitch in half. So whatever the capacity...
    view full answer...
  • Are Roadmaster or Blue Ox Base Plates Easier to Install on 2011 Honda CR-V
    Between the base plates that fit your 2011 Honda CR-V, the Blue Ox Base Plate Kit # BX2246 and Roadmaster Direct-Connect Base Plate Kit # RM-521559-5, I recommend the Roadmaster as it will be the slightly easier installation. The reason for that is the Roadmaster does not require having to saw off part of the bumper core in order to install the base plates, which the Blue Ox does require. That is the major difference between the two installs so if it were my 2011 Honda CR-V I would...
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  • Recommended Adapter for Ground Clearance of Bike Rack
    The Curt Dual 2" Receiver Tube Adapter, 8" Extension # D-192 will work well to give you the extra height you desire but using any adapter will reduce your hitch tongue weight by 50%. This won't be an issue with a Curt Class III hitch is you just use your Ridgeback # Y02457. A similar option for more height is the Malone 2" Dual Purpose Hitch Receiver # MPG544 but it will also extend the length of the hitch 2-1/2 more inches than the # D-192. This will probably result in the adapter...
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  • Parts Needed to Flat Tow 2020 Lincoln Nautilus
    There are a number of parts needed to flat tow your 2020 Lincoln Nautilus 2.7L V6 engine and we can start with the wiring you asked about, which would be the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267. This kit is recommended because it is designed to prevent any type of electrical feedback to keep your Lincoln's electrical system safe. Along with this wiring kit here are the other parts recommended to flat tow your 2020 Lincoln Nautilus with a 2.7L V6 engine: -...
    view full answer...
  • Parts Needed to Flat Tow 2017 Jeep Wrangler JK Unlimited With Roadmaster Falcon 2 Tow Bar
    There are a bunch of parts needed to flat tow your 2017 Jeep Wrangler JK Unlimited so I can understand it can get a little confusing, but I'll make a list for you of the parts that you need to tow it with your Roadmaster Falcon 2 Tow Bar # RM-520. I will assume you have the standard factory bumper on your '17 Wrangler JK Unlimited, as you did not specify otherwise: - Base Plate Kit: Roadmaster Direct-Connect Base Plate Kit # RM-521448-5 - Safety Chains: Roadmaster 68" Single Hook,...
    view full answer...
  • 4 inch High Low Adapter with More Length than # RM-048-4
    The part # RM-070 has a distance of 6 inches from the pin hole to the angled bracket and has the 4 inches of rise/drop you need so it would be a great solution.
    view full answer...
  • What Tow Bars Work Well With Roadmaster EZ4 Base Plates
    Most tow bars, especially those by Roadmaster, will work with the EZ4 Base Plate Kit with Removable Arms, Item # RM-521448-4. One of our popular tow bars that is made in the USA is the Roadmaster Sterling All Terrain Tow Bar, Item # RM-576. It is lightweight, durable, and easy to use and store. It also includes safety cables and works with 2 inch trailer hitch receivers. While you may already have them, you will also need tow bar wiring and a supplemental braking system for flat...
    view full answer...
  • Flat Towing Parts Needed for 2018 Honda Fit With Manual Transmission
    I'd be happy to confirm the parts you mentioned for your 2018 Honda Fit in order to flat tow it: - Roadmaster Direct-Connect Base Plate Kit # RM-521571-5 - Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar # RM-676 - Roadmaster Universal Hy-Power Diode Wiring Kit # RM-152 - Roadmaster Battery Charge Line Kit for Towed Vehicles # RM-156-25 This can be used if you do not want to pull fuses and use the Roadmaster FuseMaster Fuse Bypass Switch # RM76512 and # RM76511. If your...
    view full answer...
  • All Parts Needed to Flat Tow 2019 Jeep Wrangler JK with Standard Factory Bumper
    There are a number of parts needed in order to flat tow your 2019 Jeep Wrangler JK with a standard factory bumper; I will list the parts for you below. - Base Plate Kit: Roadmaster EZ5 Base Plate Kit # RM-521453-5 - Tow Bar: Roadmaster Falcon All Terrain, Non-Binding Tow Bar # RM-522 - Safety Chains: RoadMaster 68" Single Hook, Coiled Safety Cables # RM-643 - Wiring Kit: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 - Supplemental Braking System: Roadmaster InvisiBrake...
    view full answer...
  • Need Cargo Carrier That Sits Far Enough Away From Dual Exhaust on 2013 Jeep Grand Cherokee
    I recommend taking a look at the 24x60 Curt Cargo Carrier, # C18153. This carrier has a shank rise of 2 inches and the closest edge of the carrier will sit approximately 15 inches from the bumper of your 2013 Jeep Grand Cherokee. If you feel that this carrier will still sit too close to the dual exhaust on your Cherokee, you could use the Curt Dual 2 inch Receiver Tube Adapter, # D-192, which will raise the carrier 5-1/4 inches and push it 8 inches further away from the vehicle. Please...
    view full answer...
  • Dimensions Between Hitch Pin Holes on Roadmaster 2 Inch Rise/Drop Adapter # RM-072-2
    The Roadmaster 2 Inch Rise/Drop Adapter, part # RM-072-2 and the Roadmaster 4 Inch Rise/Drop Adapter, part # RM-070 has a measurement of 10-1/4 inches between the center of both hitch pin holes. So if you measure on your hitch receiver from the center of the hitch pin hole out to the rear of the vehicle, the measurement listed above will give you an idea of how far out the adapters will be from your hitch receiver.
    view full answer...
  • Can 2020 Subaru Crosstrek With Manual Transmission be Flat Towed and Parts Needed
    According to the owner's manual I looked up online, your 2020 Subaru Crosstrek with manual transmission can indeed be flat towed. In regards to the parts, they aren't additions, they are necessary in order to safely tow, and for things like a supplemental braking system, the law in most states. Flat towing can be costly, but these parts are important in order to ensure everyone's safety. I will recommend the most cost-effective parts for your 2020 Subaru Crosstrek's flat-towing set...
    view full answer...




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Info for this part was:

Expert Research:
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Expert Research:
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Expert Research:
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Expert Research:
Jeff D
Expert Research:
Jameson C
Video by:
Joshua S
Test Fit:
Nicholas E
Test Fit:
Robert C
Video Edited:
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Video Edited:
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Updated by:
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Updated by:
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Updated by:
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