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  1. Base Plates
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Roadmaster EZ Base Plate Kit - Removable Arms

Roadmaster EZ Base Plate Kit - Removable Arms

Item # 521190-1
Our Price: $485.00
Base Plates

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Shipping Weight: 51 lbs
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Base Plates 521190-1 - Twist Lock Attachment - Roadmaster
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Roadmaster's EZ Twistlock series brackets are virtually invisible, easy to mount and simple to remove. Brackets install on your vehicle's frame to provide attachment points for your tow bar. 1-800-940-8924 to order Roadmaster base plates part number 521190-1 or order online at Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster EZ Base Plate Kit - Removable Arms. Base Plates reviews from real customers.
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Roadmaster Base Plates - 521190-1

  • Removable Drawbars
  • Roadmaster
  • Twist Lock Attachment

Roadmaster's EZ Twistlock series brackets are virtually invisible, easy to mount and simple to remove. Brackets install on your vehicle's frame to provide attachment points for your tow bar.


  • Hidden bracket design provides improved aesthetics compared with standard brackets
  • Drawbars are easily removable - just twist and pull
    • No pins or clips required
  • Computer-cut, all-steel construction provides exceptional strength
  • Black powder coat finish is durable and corrosion resistant
  • Simple installation - no welding required
    • Custom base plates ensure a perfect fit for your vehicle
  • Compatible with Quick Disconnects and all Roadmaster tow bars
  • Instructions and mounting hardware included
  • Made in the USA
  • Limited Lifetime Warranty

The drawbars, or front arms, on the EZ series base plate kit are supremely easy to mount and remove. Just insert them into the brackets and twist to lock them in place. To remove, simply twist the arms back and pull them out. Once the drawbars have been removed, the remaining brackets are virtually invisible. On most automobiles, the brackets are mounted within the grille, where they remain not only unseen, but protected from scrapes and scuffs as well.

521190-1 Road Master EZ Base Plate Kit

Installation Details 521190-1 Installation instructions

This Product Fits The Following Vehicles

Customer Satisfaction Score:

Customer Reviews

Roadmaster EZ Base Plate Kit - Removable Arms - 521190-1

Average Customer Rating:  4.8 out of 5 stars   (413 Customer Reviews)

Roadmaster's EZ Twistlock series brackets are virtually invisible, easy to mount and simple to remove. Brackets install on your vehicle's frame to provide attachment points for your tow bar.


Prepared my vehicle for the base plate. The base plate has a manufacturing defect in that the crossbar is approximately.375 inches short. The hole pattern matched on one side but the other side would not line up with the vehicle holes. The mounting plate overlapped the mounting holes by 1/3rd. Clearly, the assembly was short. I find my disassembled vehicle sitting for a week waiting for the replacement to arrive. Hopefully, Roadmaster QC did a better job on the new base plate assembly that I am waiting for.

2012 Honda Fit

I was having problems with the bracket that was on the car when I bought it and when it no longer felt safe to me, I looked on your website for a replacement. Lo and behold, this product appeared to be better designed and an easier installation. Putting 8t on today proved that. I am very happy with the product and your service. Thank you very much!



This product continues to meet or exceed my expectations. I have had no issues or problems with it.

2010 Honda Fit

Very happy with this product. Installation was pretty easy. I see no reason to pay someone to install this. True you have to take the bumper off and a large metal support beam but it was pretty easy. You just have to take it slow and not get frustrated. The bumper on the Honda Fit is held on with a gazillion little plastic clips and snap joints. Everything fits tight on a Honda so you have to be patient. My only complaint is they don't give you the exact torque settings. I had to consult a shop manual to get the correct torque values. They give a table at the end of the instructions that gives common torque values for various bolt sizes. I thought that was lame they could have given the correct value from the shop manual. Certainly not enough to lower my rating. This bar is awesome and when the drawbars are removed the base plate is almost completely hidden. My wife wanted nothing to show on the front of the car. She was very pleased with it.

In the picture attached the bar is almost completely hidden. All you see are two small black circles. It takes about 2 seconds to mount the drawbars, just twist and go. VERY sturdy. I tow my Honda behind the motorhome with confidence.

2011 Honda Fit

The installation on this was surprisingly quick on my 2011 Fit (base/non-sport version). Everything fit well (no pun intended).

A few minor changes over the video as my car was slightly different:
- I didn't have to trim anything on the air dam -- the tubes lined up perfectly with the slots on my grill.
- There was a in the wheel on each side where the plastic bumper meets the steel body panel. I didn't realize they were there (they're hidden somewhat) so I ended up cracking the hole this screw was in, but everything came back together nice and tight anyway.


I did purchase this base plate for my Honda Fit that I flat tow behind my motor home, the product was installed as shown with absolutely no issues, and I continue to tow my Honda regularly, I would consider a great investment and well worth the money I spent.

Frank D.


We have towed the Honda many times behind our motorhome and haven’t had any issues.


Easy to install and great price highly recommended

2013 Honda Fit

The Roadmaster EZ Base Plate for my Honda Fit is very heavy duty - well built. The on line Video and the included instructions were excellent. I did encounter one problem during the installation - 2 holes in the mounting plate on the passenger side did not quite line up. I had to enlarge the 2 holes about 1/8 inch toward the outside of the car to make it work. The receivers fit nicely through the grill with no adjustment to the grill.

2011 Honda Fit

I recently ordered a flat tow base plate for a 2011 Honda Fit. I need to review that product too. It was a pain getting it mounted as the bracket didn't quiet fit as it was supposed to. But that is Roadmaster's fault and not yours. I will contact them to complain.

Thanks for the followup!


I have used Roadmaster hitches and baseplates on several vehicles over the years. The purchase experience with E-Trailer has consistently been excellent. The baseplate is high quality, easy to install, and an excellent fit!

Mazda Miata

I like the Roadmaster tow bars but I am 2 for 2 with fitment issues. The one bolt hole did not line up with the frame, after trying to adjust and take measurements for an hour, I had to grind about an eighth of an inch on the frame hole. This issue doubled the installation time. Had a similar issue with my Miata tow bar 7 years ago, but had to enlarge hole on tow bar. The etrailer video was excellent and this would have been a simple install if the tow bar fit.

Honda Fit

Base Plate went in without any problem. The on-line video helped tremendously especially when removing the plastic bumper. A little more information could have been prided on disconnecting the fog lights on the Sports model of the Honda Fit. But I was able to take out a few more screws and get access to the plugs. The base plate is barely visible and I love the twist and lock feature on the base plate. Much better than the old pins and clevis on older base plates.

2012 Honda Fit

Exact products I needed to outfit my new Honda toad. Super fast, free shipping. Great instructions and how-to videos.

2009 Honda Fit

I have made purchases for two different vehicles. Both were used for four wheel down towing. Each time etrailer gave me correct information on the products and promptly shipped and delivered them. Best of all they fit correctly and no surprises. I will use them again.

Rick I.


thank you for touching base with me. All the products seem to be fine.They are in use


Tow Bar System is obviously part of a full set of kits that are installed in out Honda Fit and towed. I installed the system and fit great. No complaints and it’s easy and quick to hook up each time and works as it should.


Great experience!! Etrailer folks were very helpfull answering all my questions with good knowledge of their products. The tow bracket shipped out and was delivered on time as promised. This Roadmaster bracket fit perfectly. I'll continue to do business with


Sequence of events can aid in easier installation.

1. Problem: I found threading the bolts into the weld nuts that are located on the bars that slide into the frame was very difficult.
Solution: I took off the baseplate and chased the threads with a 1/2 - 13 tap to clear out the powder coat paint and the bolt easily threaded in by hand.

2. Problem: When I tried to get the base plate bolted on, I did the front facing bolts first then tried to align the slide in 3/4" bolts next. I couldn't get them in. I read a review where someone had to grind the frame to get the slide bolts to align. There had to be a better way without modification.
Solution: When the front cowell has been removed and the baseplate is hand held in position on the FIT, thread the 3/4" head bolts into the slide in brackets BEFORE putting the 12 mm bolts into the brackets that face forward. In my case the bolts went in without any difficulty. If you follow my suggestion you too can avoid grinding.

Solution: When the front cowell has been removed and the baseplate is hand held in position on the FIT, thread the 3/4" head bolts into the slide in brackets BEFORE putting the 12 mm bolts into the brackets that face forward. In my case the bolts went in without any difficulty. If you follow my suggestion you too can avoid grinding." />


The etrailer video instructions to install the base plate was very helpful and enabled easy installation.
Shipment was within 48 hours of order
Would use etrailer again.

2013 Honda Fit

Prompt Delivery!! Incredible packaging with no chance of any damages.

The instructions were great and total install took just over 2 hours.

Thanks again!!

Bill H.


Honestly, since installation the use of the tow bar has become an automatic. To say I have not given it a single thought is the case. Simply stated it works as expected. Thanks for a great product!!

2010 Honda Fit

This was a great kit to work with. Instructions made it simple. It took longer to put the car back together than to put the base on.
I would highly recommend this product . I am a 74 year old women and I tow my 2010 Honda Fit with ease. Buying this product thru E trailer really saved me a lot of money with their free shipping. Juanita did a great job helping me order it. I will return here again if I ever need anything more.


I already had the tow-bar and only needed the hardware on the toad side. Cathy was very helpful and quickly determined the needed parts. etrailer offered free shipping and a few days later I received the shipment.

2009 Honda Fit Sport

first class company etrailer!Purchased base plate on 8/21 and it was delivered on 8/26 at 1:00PM; by 2:30PM installation was complete! This is a simple installation and the 521190-1 matched my Honda Fit Sport 2009 perfectly. "Life is Good"!!

2011 Honda Fit

I ordered the baseplates to tow a Honda Fit. The procuct arrived on time, Had very good directions, & installed in about 2 hours. A very clean installation, very well represented. Tghe on line video was really a big help. Kudus to all of you. D

2013 Honda Fit

Excellent product. Took 1.5 hrs to install with two people. Video was an excellent source for how to install. Delivery was great! Overall, a buying experience. I will be ordering additional products in the very near future.

2013 Honda Fit

Arrived very fast with free shipping and complete installation instructions. Would not hesitate to buy here again


Good instructions, easy install & seem to be a good product. I was short 2 fiber washers ,called Joshua and he sent them right to me. Thanks Josh.

Show More Reviews

See what our Experts say about this Roadmaster Base Plates

  • Determining If High-Low Adapter Is Needed When Flat-Towing 2012 Honda Fit
    Unfortunately, the measurement you asked about was not taken in the video of the installation of base plates on the Honda Fit. Since there are so many different vehicles and they can have so many different configurations it is best to measure for the high-low adapter after the base plates have been installed. That way you are sure to get the right high-low adapter for your specific installation. I have attached a photo of the # 521190-1 base plates installed on a 2012 Honda Fit. You may...
    view full answer...
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  • Parts Interchangability for a Roadmaster Base Plate Kit on My 2009 Honda Fit
    The Roadmaster EZ Base Plate Kit, part number 521190-1, is the correct kit for your 2009 Honda Fit. I am sorry but the base plate kits are sold only as a complete set. When the kits are manufactured the brackets are universal fit but the draw bar portion of the kit, while being very similar part to part, are specifically matched, for that base plate kit only. We do not sell the vehicle side brackets only.
    view full answer...
  • Troubleshooting A Roadmaster Base Plate Kit Not Aligning Properly on a 2003 Honda Civic
    Without knowing what holes you are having a problem aligning it's hard for me to say exactly what could be going on. Was your 2003 Honda Civic in a front-end accident at one point? That could cause the mounting holes to be off if the damage wasn't fixed properly. Is the alignment problems you are seeing on both sides of the kit? Or just one side? Do you have an SI model? If so, you would have needed the Roadmaster Base Plate Kit part # 1547-1 instead. Check out the install video I attached...
    view full answer...
  • Will the Same Adapter Be Used for a Ready Brute Elite Tow Bar to a Base Plate Kit on a Fit & Pilot
    The Roadmaster EZ Base Plate Kit # 521190-1 is the correct base plate kit to fit your 2013 Honda Fit. The adapter is going to be dependent on your tow bar, while the adapter for your NSA Ready Brute Elite tow bar will most likely work with both the Roadmaster EZ Base Plate Kit # 521190-1 (for your 2013 Honda Fit) and the Roadmaster Crossbar-Style Base Plate Kit # 1544-1 (for your 2005 Honda Pilot) you would need to contact NSA to confirm that fitment. We do not carry NSA products and do...
    view full answer...
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  • Does Fuse Need to Get Pulled to Flat Tow 2010 Honda Fit
    According to the online version of the owner's manual for your 2010 Honda Fit that we found you will need to remove the Radio fuse from the interior fuse block which is in the 61 position. This is where you will want to install the Roadmaster FuseMaster Fuse Bypass # RM76511. This is confirmed by Roadmaster as well.
    view full answer...
  • Will My Roadmaster All-Terrain Tow Bar fit EZ Style Brackets on my 2010 Honda Fit
    All of the Roadmaster All-Terrain bars that we carry, Blackhawk2, Falcon, Sterling and Stowmaster, are all compatible with EZ style brackets. As long as your tow bar set up has the quick disconnects, like part # RM-201, then you can continue to use the Roadmaster Guardian Rock Guard.
    view full answer...
  • Compatibility of Stowmaster Tow Bar with Roadmaster # 521190-1 Base Plates for 2013 Honda Fit
    The Roadmaster # 521190-1 Base Plates you referenced are a correct fit for your 2013 Honda Fit. For reference I have linked an installation video for this item on a 2012 Fit. The Stowmaster tow bar is fully and directly compatible with these EZ base plates. For reference I have linked an article on flat-towing.
    view full answer...
  • Honda Tow Bracket For 2010 Honda Fit
    I spoke with RoadMaster to find out if the tow bar brackets for the 2009 Honda Fit will work on your 2010 model. At this time the engineers are just beginning their research on the 2010 model and they will contact me when they have a definitive answer for your vehicle. Most likely the brackets will be the same but RoadMaster needs to check with Honda to be sure that there has not been any changes that effect the installation or performance of the tow brackets. The Roadmaster Falcon 5250...
    view full answer...
  • Supplemental Braking Recommendation for Flat Towing a 2012 Honda Fit Sport Behind a Motor Home
    Since you already have the base plates, tow bar, safety cables, and lights, you will only need one more item to complete the towing set up of your 2012 Honda Fit. Most states now require supplemental braking on the vehicle being flat towed. The easiest system to set up and use is the Even Brake # RM-9400 which is a proportional system. It applies the vehicle brakes in proportion to how much the motor home is braking. This is the safest way to stop and it reduces wear and tear on both...
    view full answer...
  • Will 1-1/4 inch Roadmaster EZ2 Base Plate Covers # RM-212 fit Roadmaster EZ Base Plate # 521190-1
    In reference to your question regarding the Roadmaster EZ Base Plate # 521190-1, the recommended covers for that product are the Roadmaster EZ2 Base Plate 1-1/4 inch Receiver Covers # RM-212. These covers are designed to be used in the 1-1/4 inch ID base plate tubes. If you are looking for a tow bar as well, I recommend the Roadmaster Falcon 2 Tow Bar # RM-520 which works with all Roadmaster vehicle-specific base plates. I have included a video review of the tow bar for your perusal.
    view full answer...
  • Parts Needed to Flat Tow a 2010 Honda Fit with Manual Transmission
    The first thing you need to flat tow your 2010 Honda Fit is a base plate kit like the Roadmaster EZ part # 521190-1 which is a confirmed fit. In addition to the base plates, you will also need a compatible tow bar, safety cables, lighting, and supplemental braking to flat tow your vehicle. The most popular compatible tow bar is the Falcon All Terrain, # RM-522. This has non-binding arms which makes the setup very easy to connect/disconnect. For lighting/safety cables, locks, and covers...
    view full answer...
  • Is The D-Ring Adapter RM-035-01 Compatible With The etrailer Tow Bar e44ZR
    Unfortunately, no the Adapter for Jeep D-Ring Bumper # RM-035-1 is not compatible with the etrailer SD Non-Binding Tow Bar for Roadmaster Crossbar-Style Base Plates # e44ZR. # e44ZR is compatible with Roadmaster cross-bar style base plates like # 521190-1, and # RM-035-1 is only compatible with direct connect tow bars like the Roadmaster Falcon All Terrain # RM-522.
    view full answer...
  • Recommendation On Flat Towing 2010 Honda Fit And What Items Needed
    Yes. From my research, your 2010 Honda Fit can be flat towed. You should verify with your owner's manual. The items needed to tow your Fit will include base plates, a tow bar, safety cables, wiring, and a braking system. For your 2010 Fit, I recommend the Roadmaster EZ Base Plate Item # 521190-1 because it is designed for your vehicle. It also has twistlock brackets that are virtually invisible and can be removed. The Roadmaster Sterling All Terrain Item # RM-576 is a great choice that...
    view full answer...
  • Baseplate And Flat Towing Accessory Recommendations For 2012 Honda Fit
    Congratulations! Yes, the # 521190-1 is a match for both your 2012 Honda Fit and your Falcon 2 tow bar. When setting up a car for flat-towing, it's important to not only have the right tow bar and baseplate, but also a braking system such as the Roadmaster Even Brake # RM-9400 , the correct vehicle wiring such as the Hopkins # HM56302 Custom Wiring Kit, and a good pair of safety chains such as the Curt # C80151 Another thing you'll likely need after you install the baseplate is a high-low...
    view full answer...
  • Recommendation For Flat Towing A 2013 Honda Fit
    I checked the owner's manual and you can flat tow your 2013 Honda Fit. The items needed to tow your Fit will include base plates, a tow bar, safety cables, wiring, a braking system, and maybe a high-low hitch adapter. I know you already installed base plates so as long as they are a match for your Fit you will be fine. The base plate I would normally recommend is the Roadmaster EZ Base Plate, Item # 521190-1. If you have Roadmaster base plates then I recommend the Roadmaster Sterling...
    view full answer...
  • Will Roadmaster EZ Base Plate Kit # 521190-1 For 2009 Honda Fit Work With Other Brands Of Tow Bars
    The Roadmaster EZ Base Plate Kit # 521190-1 for the 2009 Honda Fit will work with other brands of towbars as long as you use a Roadmaster base plate adapter. I have the RoadMaster Base Plates to Duncan, Karbar and EazAligner Tow Bars Adapter # RM-038. This adapter will let you use the Roadmaster base plates with the Duncan Towmatic II, Karbar and EazAligner Tow Bars. I also have the Roadmaster Base Plate to Tow Ready Tow Bar Adapter # RM-025. This adapter will let you use the Roadmaster...
    view full answer...
  • Base Plate Kit for Flat Towing a 2001 Subaru Outback Wagon
    Actually for your 2001 Subaru Outback Wagon the only base plate kit we offer is an EZ kit part # 52911-1 which is a confirmed fit. The XL and EZ kits both are great options that we have had zero security issues with. This would work well with your Tracker Tow Bar part # RM-020 as well. For safety cables you can use # RM-643. The coiled design helps keep the cables off of the ground. For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight...
    view full answer...
  • Base Plate Kit Installation Information for a 2011 Honda Fit
    If you check out the install video I attached you will see our installers installing the Roadmaster Base Plate kit part # 521190-1 on a 2011 Honda Fit just like yours. I also attached a link to the install instructions from Roadmaster as well. A good portion of the front end components come off the vehicle like what you see in the attached picture. In addition to the base plates, you will also need a compatible tow bar, safety cables, lighting, and supplemental braking to flat tow your...
    view full answer...
    Image 1 for
  • Can 2015 Honda Fit be Flat Towed Behind RV
    The final authority on whether or not your vehicle can be flat towed would be the owners manual and not necessarily that article you mentioned. Everything I found for your car shows that it is flat towable since your 2015 Honda Fit is a manual. For a base plate kit you'd want to start with the part # 521190-1 which I attached an install video for. In addition to the base plates, you will also need a compatible tow bar, safety cables, lighting, and supplemental braking to flat tow your...
    view full answer...
  • Can 2012 Honda Fit Automatic Transmission be Flat Towed
    I did some checking and it looks like your 2012 Honda Fit with an auto transmission can be flat towed behind a motorhome but you have to be sure to follow all procedures outlined in the owners manual of the vehicle. I would recommend the Roadmaster Falcon 2 Tow Bar, part # RM-520. The Falcon 2 is our best seller, and is easy to operate. The vehicle-specific base plate kit is part # 521190-1. I will link you to our video showing this kit being installed on a 2010 Honda Fit. For safety...
    view full answer...
  • Braking System For Towing 2012 Honda Fit Behind Motorhome
    If you're flat towing the Fit behind a motorhome using a towbar like the Roadmaster Falcon 2 part # RM-520 and base plates like part # 521190-1, a trailer brake controller wouldn't work because they're compatible with electric or electric over hydraulic braking systems only. When installation costs are considered, a portable braking system like the Blue Ox Patriot # BLU37TR would be my recommendation. The unit would simply drop into place in front of the driver's seat and the actuating...
    view full answer...
  • Can a 2011 Honda Fit with Manual Transmission be Flat Towed with All 4 Wheels on the Ground
    You should verify with the owner's manual but from my research the 2011 Honda Fit can be flat towed with all 4 wheels on the ground. To flat tow it you're going to need a tow bar, base plate kit, wiring, a supplemental braking system, and likely a high-low adapter. The Roadmaster Falcon 2 Tow Bar # RM-520 is a great option to tow your Honda. It has a large hookup raidus and self-aligns so hooking up is easier and smoother. It connects right up to the EZ Base Plate Kit # 521190-1 along...
    view full answer...
  • Is Hardware Included in Roadmaster EZ Base Plate Kit # 521190-1 to Connect to a Quick Disconnect
    The Roadmaster EZ Base Plate Kit, part # 521190-1, does not include the RoadMaster Quick Disconnects, part # RM-222. These car side quick disconnects will bolt to the EZ base plates on your 2011 Honda Fit and allow the crossbar from your Falcon 2 tow bar to be connected. The quick disconnects come with the mounting hardware, it is not sold separately. I also have the quick disconnects for the tow bar side, part # RM-221. These are the quick disconnects that attach to the crossbar of your...
    view full answer...
  • Recommendation of Base Plate Kit and Tow Bar for 2009 Honda Fit
    The Roadmaster EZ Base Plate Kit, item # 521190-1, is the base plate kit you will need for your 2009 Honda Fit. With this base plate kit you will need a tow bar and safety cables and tow bar wiring for your vehicle. If you are towing infrequently, you can use the RoadMaster Tracker Tow Bar, item # RM-020, and if you are going to be towing often you will like the convenience of the RoadMaster Falcon 2 Tow Bar, item # RM-520, which allows you to quickly and easily connect and disconnect...
    view full answer...

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Info for this part was:

Employee Andrew K
Video by:
Andrew K
Employee Lindsey S
Written by:
Lindsey S
Employee Robert G
Expert Research:
Robert G
Employee Patrick B
Expert Research:
Patrick B
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D
Employee Jameson C
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Jameson C
Employee Brandon M
Expert Research:
Brandon M
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Joshua S
Video Edited:
Joshua S
Employee Dustin K
Video Edited:
Dustin K
Employee Adele M
Updated by:
Adele M
Employee Isabelle B
Updated by:
Isabelle B
Employee Shane T
Test Fit:
Shane T
Employee Ryan G
Test Fit:
Ryan G

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