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  1. Tow Bar Base Plate
  2. Roadmaster
  3. Removable Draw Bars
  4. Twist Lock Attachment
  5. Completely Hidden
THIS ITEM IS NOT A FIT FOR
2012 Chevrolet Express Van
etrailer Installation
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Roadmaster

Roadmaster EZ Base Plate Kit - Removable Arms

Part Number: 521020-1B
In Stock
$575.00
Retail:$632.50
You Save: $57.50
Tow Bar Base Plate
Not Confirmed to Fit

2012 Chevrolet Express Van

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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
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. Great Prices for the best tow bar base plate from Roadmaster. Roadmaster EZ Base Plate Kit - Removable Arms part number 521020-1B can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (492)
  • Q & A (0)

Roadmaster Tow Bar Base Plate - 521020-1B

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • Ready for Flat Towing: Mounts to the frame to create secure attachment points for your tow bar.
  • Blends In When Not Towing: Hidden bracket design keeps the front end looking factory when arms are removed.
  • Quick Hookup and Removal: Twist-lock arms insert and release with a simple turn—no pins or clips needed.
  • Built to Last: Computer-cut, all-steel construction with black powder coat resists corrosion and wear.
  • Easy to Install: Bolts on with included hardware—no welding required for a straightforward setup.

Features to know about

Made for a Clean Front End: Hidden Brackets with Removable Arms

If you prefer a clean, factory look when you’re not towing, this setup fits the bill. The hidden bracket design keeps everything out of sight once the removable drawbars are taken off, leaving the front end neat and uncluttered. The brackets sit within the grille area for a smooth, low-profile finish that stays protected from scrapes and scuffs.

Quick Hookup Every Time: EZ Twistlock Connection

Getting ready to tow doesn’t have to be a chore. The EZ Twistlock system lets you mount or remove the drawbars in seconds—just insert them into the brackets, twist to lock, and you’re set. To disconnect, twist again and pull them free. There are no pins or clips to fumble with, so it’s fast and easy even if you’re doing it solo.

Strong Where It Counts: All-Steel Construction with Powder Coat Finish

Built from computer-cut, all-steel components, this base plate kit is made for heavy-duty use. The black powder coat finish adds corrosion resistance for long-term durability on the road. It bolts directly to the frame with no welding required, giving you solid attachment points that stand up to the demands of flat towing over thousands of miles.

Ready for Your Setup: Compatible with Roadmaster Tow Bars and Quick Disconnects

Already running a Roadmaster tow bar or crossbar system? You can keep your existing gear. This kit works with all Roadmaster tow bars and is compatible with Quick Disconnects for simple integration into your current towing setup. Instructions and mounting hardware are included so you can get it installed and road-ready without hunting down extra parts.

Specs

  • Hidden bracket design: Provides improved aesthetics compared with standard brackets
  • Drawbars: Are easily removable - just twist and pull
  • No pins or clips required: For quick and easy use
  • 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
  • Compatibility: Compatible with Quick Disconnects and all Roadmaster tow bars
  • Instructions and mounting hardware: Included
  • Manufacturing origin: Made in the USA
  • Warranty: Limited Lifetime Warranty

521020-1B Road Master EZ Base Plate Kit

Installation Details 521020-1B Installation instructions

This Product Fits The Following Vehicles




Ratings & Reviews

4.8

492 reviews
Review sort icon
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.

by:

I installed this base plate system on my 2014 Jeep Grand Cherokee Limited this weekend. My Jeep had tow hooks which were basically removed and replaced by the base plates in the same location. No modifications to the grill were required and the base plates are no more noticable than the tow hooks were.
Installation was straight forward. Roadmaster forwarded a PDF file of the excellent color instructions with my order confirmation. I was able to view the photographs on my ipad and zoom in where necessary to get more detail.
Overall I would rate the Roadmaster product, instructions and customer service 5 star in every way.



by:

Very good product at a great price. Instructions and video are for a 2013 terrain and things were a bit different on my 2015. When all screws and clips are removed the front piece cannot be just pulled forward. There is a rear facing clip and you have to pull to the side to remove from this piece. (pics attached)There was no PS cooler attached in front on mine. Remove washer bottle totally which consists of 2 nuts and 1 bolt otherwise you will never get back up plate for top brackets in. If you remove horns it also makes installing the top brackets much easier.



by:

Very well constructed. Fitting right side took some adjustment, I had to clearance the lower member hole in order to fit the bolt.
I installed the base plates myself, after the prospective mechanic claimed this was the incorrect fitment. Subsequent calls to Roadmaster produced a "No Fit" pronouncement, in spite of the lookup and even the printed instructions. Undaunted, I proceeded, and the fit was successful. YES, this DOES fit a 2007 Mini Cooper S Convertible.



by:

Installed on 2005 mini cooper convertible. Choose this base plate for our mini since it provided highest attachment height for tow bar (12 inches off ground, only requires 3 inch drop from back of RV), and attaches to mini frame more substantially that blue ox. Installation directions are nearly perfect, we had to widen holes on passenger side to line up with frame. Modification was approved by Roadmaster.



by:

Easy to install for the do it yourselfer. Good quality and fit. etrailer customer service was great too.



by:

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.



by:

Even I had to wait almost 2 months, I'm so grateful that I got the Roadmaster base plates and tow bar..:) It is so easy to be mounted and to operate with it... Thank you for the good product.... P.S You don't need to cut anything from the bumper plastic facial...so you can just skip that part from the instructions!



by:

The Roadmaster base Plate kit does what it was designed to do. A difficult install as the Smart ForTwo did not lend itself to an easy base plate engineering design.
Installed it myself though with help from the instructions and etrailer on line instructions. I like the finished base plate. It is barely visible protruding only slightly from the black lower radiator grill (see photo)



by:

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.



by:

It does what it's supposed to do, which actually seems to be special these days. In all seriousness we purchased this for out Liberty, which blew it's ending the first time we tried to go on a big trip. We had it taken off of that Liberty and put on another and that's what it was on for our tip from AZ to Chicago. We have connected and disconnected probably a dozen times and took the arms off to drive around Chicago. It works just like it should and it is nice to not have to worry about at least one item. Hightly recommend this system.



by:

I had my tow car blow its engine in South Dakota while on vacation. It needed to be replaced. I bought a used car and ordered a tow bracket for it and had it shipped to one of my destinations so I could install it there.
Unfortunately that car also broke down but I was able to return it. I asked to return that bracket and etrailer accepted it back.

I found a different car and ordered the bracket for it plus a wiring kit. etrailer shipped those and they were there when I got there.

They were easy to install and fit exceptionally well. After having my wife drive the new tow car for 1000 miles we were happy to get back in the motor home while we traveled.



by:

Parts came very quickly. The base plates are really well make and of heavy material. If you watch the video it is a breeze to install. Make sure you have some new clips for your bumper as the old ones will break, not all but some. I ordered clips from Amazon. I used a vibrating saw with cutting blade and it did nice job cutting plastic bumper cover.



by:

I received the base plate for my Miata at 4:30 Monday by 7:00 it was installed and ready to go.A great product fit very nicely.Ordering and follow up went great can’t wait to try it out Just need to decide on the tow bar we will use.The Falcon or Sterling .Thank you for a great product and service.



by:

very well made and just getting pickup ready for flat towing. Fast shipping and excellent service. Highly recommend.



by:

It was a very easy install and it did great. Only got to use it for 2 months though before a semi drug his trailer across the back on my toad and totaled the vehicle.



by:

Installed on 2014 GMC Acadia. Very sturdy and heavy duty base plate. I installed it myself. You will need a little automotive knowledge and more tools then the average do it yourself-er. It took about 6 hours, by myself. It looks more intimidating then it turned out to be. You can't see it when not in use which makes it nice for the wife, since it's her car.
Pictures show the tow bar adapter. Sorry, no pictures of adapter removed.



by:

Roadmaster base plate for 2010 GMC Terrain. Very detailed instructions, great videos. Product was as described, no holes to drill, just replace factory parts with Roadmaster parts. Everything went together very well. I used the instructions supplied along with the video on my laptop. Hardest part was popping the bumper shroud back on due to colder temperature. I have a fair bit of experience with rebuilding classic cars so have lots tools and reasonable mechanical ability.



by:

Purchased the towing adapter for my GMC Terrain a few week ago, received it on time & boxed not damaged. Watched the videos’ about three time on how to do it myself and started one evening and finished it the next morning about three hours with Beer Breaks, LoL. All the parts fix perfectly, had no problems with any of the parts, Product is real sturdy and if you don’t know where to look at the bumper you will not see the hide away receiver brackets. Very nice product, do it yourself and save
Up loading two photos if it will let me one is with hide away brackets installed and the other one you can see is my complete tow bar attached to the hide away brackets



by:

easy to follow instructions, took about 3 hours to install. paper template for holes in facia would be great .



by:

Seems like a very well-made sturdy product. Instructions were good however the holes did not quite lineup like they were supposed to so I had to do some mild to moderate modification. I like the way it looks without the towbar on the base plate. It’s fairly well hidden.



by:

The baseplate fit perfectly and the video was very helpful



by:

Thanks for being a great knowledgeable person about this tow set up. It fit perfect and the directions made it a no brainer



by:

Installed without a hitch! Matches up perfectly with the Roadmaster Stowmaster towbar we already had. Beautiful!



by:

Many reviews for this base plate said they could not hook up the U bolts. I had no problem using the U bolts. I did not tighten any bolts until I had them all in place. Then, I tightened all the nuts and bolts. I marked them with paint so I could see if any of them backed off. After a year, all of them are still tight. We towed our mini 4,000 miles in the first year.



by:

Fitted perfect thank you


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See what our Experts say about this Roadmaster Tow Bar Base Plate

  • Trailer Hitch and Parts Needed to Flat Tow a 2012 Suzuki Grand Vitara
    For a base plate kit for your 2012 Suzuki Grand Vitara you would want the part # 521020-1B. This would work great with the Roadmaster Falcon 2 part # RM-520. 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 bulb and socket kit, # RM-155, and not have to worry about cutting and splicing into the vehicle wiring. And finally, most states now require supplemental braking in the vehicle being flat towed. The...
    view full answer...
  • Can Base Plates be installed On 2010 Suzuki Grand Vitara Diesel With Intercooler
    I have attached the installation instructions for the Roadmaster EZ Base Plate Kit, part # 521020-1B that is designed to fir your 2010 Suzuki Grand Vitara. You can check out the instructions to see where the mounting holes are and if the intercooler you have installed would interfere with installation of the base plates. If you find that you can install the base plates just let me know and I will make some recommendations for all of the components you need to flat tow your Suzuki.
    view full answer...
  • How To Attach Roadmaster Sterling Tow Bar to Roadmaster EZ Base Plate Kit
    The Roadmaster Sterling Tow Bar will work with both the direct connect and crossbar style base plate kits from Roadmaster. If you have the direct connect then you'd simply remove the crossbar and attach direct to the ears. If you have the crossbar style then you'd use the included crossbar with quick-disconnects. If you don't have the crossbar you can obtain this using the Replacement Quick Disconnect Crossbar Assembly part # 910021-00. The Roadmaster EZ Base Plate Kits like part # 521020-1B...
    view full answer...
  • Which Base Plate Kit for 2013 Suzuki Grand Vitara
    According to Roadmaster, the correct base plate kit is part # 521020-1B, unless it has a brush guard. To complete your flat towing system, you'll also need a tow bar, safety cables, a wiring solution, a supplemental braking system and possibly a high/low adapter if the height difference between the motorhome and base plates is greater than 3 inches. I've linked you to some helpful articles about flat towing.
    view full answer...

Do you have a question about this Tow Bar Base Plate?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee DeAnne T
Written by:
DeAnne T
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B

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