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Roadmaster EZ Base Plate Kit - Removable Arms

Roadmaster EZ Base Plate Kit - Removable Arms

Item # 521877-1
Retail:$606.99
Our Price: $485.00
You Save: $121.99
Base Plates

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Shipping Weight: 47 lbs
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Roadmaster EZ Base Plate Kit - Removable Arms Twist Lock Attachment 521877-1
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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 521877-1 or order online at etrailer.com. 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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  • Reviews (425)
  • Q & A (0)
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Roadmaster Base Plates - 521877-1

  • 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.


Features:

  • 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.



521877-1 Road Master EZ Base Plate Kit

Installation Details 521877-1 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster EZ Base Plate Kit - Removable Arms - 521877-1

Average Customer Rating:  4.8 out of 5 stars   (424 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.

by:

Great installation instructions and video. Was an interesting and fun project installing in our Mini-Cooper



by:

Was pretty easy to install once you deal with the Plastic Rivet Retaining Clips. It's probably a good idea to have some spare clips available as they are pretty easy to break while removing.

eTrailer offered the best price and shipping was free and fast.



by:
Roadmaster

It was a long wait but no fault of e-trailer. The Roadmaster base plate fit perfectly. Thank you to Gwendolyn and Bay for all of your help!
Len Grill



by:

As listed. Great customer support



by:
2008 Mini Cooper

Put this base plate on my 2008 Mini Cooper S over the weekend. Took about 5 hours including adding the Roadmaster tail light kit. Instructions were great and also the videos on the site helped as well. This can easliy be done by one person with the right tools!!
Great Products! Thanks



by:

Installation instructions were very good



by:
Mini Cooper

Fit perfectly and the directions were spot on. Took me about 3 hours not including the wiring of my Mini Cooper. That took me an hour and a half.



by:

Great product went in easy. The pictures on the directions need to be clearer, but all in all great product

Etrailer Expert

Jenny N.

3/10/2022

I recommend viewing our video installation on a 2010 Mini Cooper.



by:
2008 Mini Clubman

It is great and is going to work, Haven't got around to installing it yet, but looks like it is going to be easy. Thanks Dale



by:
2010 Mini Cooper

Product was shipped quickly... great customer service!!!



by:
2010 Mini Cooper

Everything delivered even faster than expected - Thank you.



by:

Easy to order, good support



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by:
2009 Mini Cooper



by:



by:

Great people to deal with. Order rec'd sooner than expected and the Roadmaster equipment was excellent.



by:

The instructions were very good, the video was excellent. If I could make a recommendation, it was a little lacking at the end. Since the Smart car is virtually held together with push pins a little more time spent putting the car back together wourl have been helpful. I'm all done and I have 2 push pins left over and don't know where they go.



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:

Installation is a bit involved but worth every second of it for the peace of mind while driving. Had a slight issue with my ordering incorrect parts but these guys went above and beyond to get it resolved in time to not miss my trip. Even rush manufactured them due to not being in stock!! Great company to do business with.



by:

This system worked perfectly from experience. They help from trailers e trailer agents was crucial for guiding me through the process.



by:

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.



by:

Product is great, packaging was rough, the parts were banging into each other inside the box. Box looked like it either had been opened before or had sat in a warehouse for several years.



by:

This reasonably priced base plate kit was professionally installed on a coupe that was pulled around the New England states for two months. The kit and the car made it possible to see many sites along the route that would have been bypassed without the toad. The kit is solid and provides secure tow-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:

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.


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Show More Reviews

See what our Experts say about this Roadmaster Base Plates

  • Roadmaster EZ Base Plate Fit for 2008 Mini Cooper S Hatchback
    The Roadmaster EZ Base Plate Kit - Removable Arms, # 521877-1, is a confirmed fit to the 2008 Mini Cooper hardtop S unless it has the sport suspension. The Blue Ox # BX1304 is a fit for the Hardtop Base model, and wouldn't work with S models. In addition to the base plates, you'll also need a tow bar, safety cables, a vehicle wiring harness, a supplemental braking system and possibly a high/low adapter if the 15.5 inch installed height of the # 521877-1 has a greater than 3 inch height...
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  • Recommended Parts to Flat Tow 2009 Mini Clubman with Manual Transmission Behind Class C Coachmen 319
    We can help you locate the parts you need; a complete flat towing setup consists of base plates, a tow bar, safety cables, tow bar wiring, supplemental braking, and in some cases a high/low adapter to keep the tow bar level during travel. I will also link some helpful articles to this answer that detail some additional flat towing information, including how to measure for the correct high/low adapter. For base plates I recommend using the Roadmaster # RM-521877-1, which has removable arms...
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  • Base Plates Compatible with 2008 Mini Cooper S Hard Top
    For your 2008 Mini Cooper S hard top, the Blue Ox Base Plate Kit # BX1303 is not the correct fit. It is only designed for 2002-2006 Mini Cooper hard top and 2007-2008 Mini Cooper convertible models. Blue Ox does not have a compatible base plate for your S hard top but I do have a solution for you. The Roadmaster EZ Base Plate Kit - Removable Arms # 521877-1 will work with the aerodynamic package but not the sport package on your 2008 Mini Cooper S hard top. If you have a Blue Ox...
    view full answer...
  • Baseplate Fitment For A 2009 Mini Copper S Clubman
    Mini Coopers are a bit of a challenge when it comes to flat towing. Per Roadmaster's fitment guide the Roadmaster EZ Base Plate Kit # 521877-1 is a fit for S and Clubman models and will work with the Aerodynamic Package, but not with the Sport suspension. With this being such a specific fit I would reach out to Roadmaster with your VIN and any package info on your vehicle to verify with their techs.
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  • Baseplate Fit on 2007 Mini Cooper S Hatchback
    We do have baseplates that are a fit for your 2007 Mini Cooper S hatchback, though the Blue Ox ones you mentioned aren't a fit; instead what you will need are baseplates from Roadmaster, which I verified with them will fit your '07 Mini Cooper S hatchback and are the following part: - Roadmaster EZ Base Plate Kit # 521877-1 Along with these base plates, there are a number of other parts that will be needed so you can flat tow your Mini Cooper S, which I'll list our for you to make it...
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  • Parts Needed to Flat Tow 2007 Mini Cooper Hardtop S model
    We do have a base plate option for you but it is not the Blue Ox Base Plate Kit, # BX1307 as this for later model years than 2007. I recommend the Roadmaster EZ Base Plate Kit, # 521877-1 for a 2007 Hardtop S model. For a tow bar, I suggest the Roadmaster Falcon 2 Tow Bar, # RM-520. This hitch-mounted tow bar has stainless steel, telescoping arms that automatically lock into place. Its large hookup radius allows you to connect without perfectly lining up your vehicle. Easily folds up...
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  • Recommended Base Plates Compatible with 2010 Mini Cooper S Hardtop
    The Blue Ox base plate # BX1307 is not a confirmed fit from the manufacturer. My recommendation for your Mini S hardtop is the Roadmaster EZ Base Plate Kit - Removable Arms # 521877-1 which has been confirmed to fit. For your tow bar, I recommend the Roadmaster Falcon 2 Tow Bar # RM-520 and then the coiled safety cables # RM-643. For your wiring, I recommend the Roadmaster LED Bulb and Socket Kit # RM-152-LED. This will have you add LED's to your tail light housing for a clean look....
    view full answer...
  • Base Plate Kit that Fits 2009 Mini Cooper S Towed with Blue Ox Tow Bar
    If your Mini Cooper S model is a convertible we have the base plate kit part # BX1307 that is a fit but if you have a hardtop S model we do not have a Blue Ox base plate that fits although we have a Roadmaster part # 521877-1 which you could use with a Blue Ox base plate kit if you had the correct adapter # RM-032 and you'd be set.
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  • Tow Bar for Flat Tow Mini Cooper 2600 Pounds
    To flat tow your 2010 Mini Cooper Convertible S model you will first need Roadmaster # 521877-1 base plates which are hidden well and have easy to use twist-lock mechanisms. Next you will need a compatible tow bar. I strongly recommend a non-binding tow bar because with it you will not need to have the vehicle and motorhome perfectly straight and level to hook up or disconnect. If you ever had to fight with a tow bar because it bound up then you know how much of a pain, literally and figuratively,...
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  • Adapters to Connect Blue Ox Tow Bar with Roadmaster EZ Baseplate Kit
    To connect the Blue Ox Alpha tow bar with the Roadmaster EZ base plate kit, part # 521877-1, on your Mini use the Roadmaster # RM-032 adapter. It comes with the pins that run through the tangs to connect the tow bar to it. You probalby already have the pins with your tow bar but maybe not.
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  • Base Plate Kit that Fits 2009 Mini Cooper S Hardtop
    Roadmaster has a base plate kit that fits the 2009 Mini Cooper S hard top models with the part # 521877-1. 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 Terain, # RM-522. This has non-binding arms which makes the setup very easy to connect/disconnect. For lighting/safety cables, locks, and covers for the tow bar we have the Roadmaster...
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  • Do You Have a Blue Ox Base Plate Which Fits a 2008 Mini Cooper S Hard Top?
    I have some good news and some bad news. First the bad news is Blue Ox does not currently manufacturer a base plate for your 2008 Mini Cooper S hard top. The good news is you can combine the Roadmaster Base Plate # 521877-1 with the Adapter # BX88178. This will allow you to then connect to a Blue Ox Tow Bar # BX7420. You will need a Bulb and Socket Wiring Kit # RM-152-LED-7 and Supplemental Braking System # HM39524 to fully prepare your Mini for flat towing. Please let me know if you...
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  • Parts Needed To Flat Tow A 2008 Mini Cooper S Hardtop
    For your 2008 Mini Cooper S Hardtop, Blue Ox does not offer a kit, however, we do offer the Roadmaster EZ Base Plate Kit # 521877-1; This is an excellent base plate kit and is a confirmed fit by our technicians to your vehicle. Please note this product will work with Aerodynamic Package, but not with Sport suspension. Next you will need a set of tow bars, for your base plate I recommend the Roadmaster Sterling # RM-576 which are a direct connect to the Roadmaster EZ Base Plate Kit previously...
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  • Trailer Hitch and Bike Rack Recommendation for a 2009 Mini Cooper S
    The Roadmaster EZ Base Plate Kit, # 521877-1, is specifically designed to be used with the removable arms that come with it in order to flat tow the vehicle behind a motor home so a bike rack will not fit. For your 2009 Mini Cooper S, I recommend the rear mounted Curt Trailer hitch, # 11130. This is a class I trailer hitch with a 1-1/4 inch square receiver. You will need to make sure that the bike rack you plan to use is compatible with a class I trailer hitch and, on class I trailer hitches,...
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  • Flat Towing Base Plates for a 2010 Mini Cooper S Hartop
    I reached out to Blue Ox and there is not a confirmed fit for your 2010 Mini Cooper S Hardtop, but I do have a solution for you. I recommend the Roadmaster EZ Base Plate Kit - Removable Arms # 521877-1 which is confirmed to fit your Model S Hardtop. Then I recommend the Roadmaster Falcon 2 # RM-520 for your tow bar and # RM-643 for your safety cables. You can use the plugs # RM-210 when not in use if desired. For your wiring, I recommend the Roadmaster LED Bulb and Socket Kit # RM-152-LED....
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  • Will The Blue Ox KarGard Towed Vehicle Protector Fit a 2007 Mini Cooper
    You have the etrailer SD Non-Binding Tow Bar for Roadmaster Crossbar-Style Base Plates, # e44ZR, being used on your 2007 Mini Cooper with Roadmaster EZ base plates, # 521877-1 and are looking for a car guard. The Blue Ox KarGard Towed Vehicle Protector, # BX8870 is designed to work with most Blue Ox tow bars, will not work with the Blue Ox Acclaim tow bars. Blue Ox states that it will fit with many other manufacturers tow bars but we have not verified that it will match specifically...
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  • Parts Needed to Flat Tow 2009 Mini Cooper S56
    According to the owner's manual for the 2009 Mini Cooper it can be flat towed. There are a number of parts you're going to need in order to do this, starting with compatible base plates. I recommend the Roadmaster EZ Base Plate Kit # 521877-1, which will work with S models of the Mini Cooper so long as it does not have the Sport suspension or John Cooper Works. For a tow bar I recommend going with the Roadmaster Falcon 2 Tow Bar # RM-520; you will also need safety chains # RM-643. For...
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  • Recommended Flat Towing Components For A 2010 Mini Cooper S
    While there isn't a complete all-in-one kit I can still list all the parts you'll need to flat tow your 2010 Mini Cooper S: Tow Bar: etrailer SD Non-Binding Tow Bar # e44ZR. This tow bar is compatible with the baseplates you'll need and comes with safety cables included so that you don't have to purchase them separately. Baseplate: Roadmaster EZ Base Plate Kit # 521877-1 (note: not compatible with Sport suspension or John Cooper Works). Tow Bar Wiring Kit: Roadmaster Tail Light Wiring...
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  • Equipment Needed to Flat Tow 2009 Mini Clubman
    If your Mini Cooper Clubman has an automatic transmission, it cannot be flat towed. If it's a John Cooper Works edition, there isn't a base plate available. In either case, you would need to use a tow dolly like the Roadmaster # RM-2050-1. If it has a manual transmission it can be flat towed with the addition of a tow bar, base plates, safety cables, a wiring solution, a supplemental braking system and possibly a high/low adapter if the height difference between the receiver on the motorhome...
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  • Parts Needed to Flat Tow 2008 Mini Cooper Hardtop S
    For a Roadmaster base plate kit that is compatible with your 2008 Mini Cooper Hardtop S and your Nighthawk tow bar part # RM-676 you'd want the Roadmaster EZ part # 521877-1. For lighting you can use the diode kit, # RM-152, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the front...
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  • Best Base Plate and Flat Towing Set Up for a 2008 Mini Cooper S
    We do have a baseplate that will fit for your 2007 Mini Cooper S, however the Blue Ox item # BX1304 you mentioned will not fit. You will need the Roadmaster EZ Base Plate Kit item # 521877-1 which is confirmed to fit your 2008 Mini Cooper S. I have linked an installation video below. Along with these base plates, there are a number of other parts that will be needed so you can flat tow your Mini Cooper S. I have listed them below and linked some review and installation videos as well....
    view full answer...
  • Base Plate Kit for Flat Towing a 2008 Mini Cooper S
    As long as you have the Aerodynamic Package and not the Sport suspension you can use the Roadmaster EZ Base Plate Kit # 521877-1. If you do have the Sport suspension then from what I can see you'll need to use a tow dolly like the Demco Kar Kaddy SS # DM9713045. For a complete flat towing setup you will need a base plate kit, tow bar, safety cables, vehicle tow bar wiring, a supplemental braking system, and possibly a high-low adapter. If you do not have all of these components just let...
    view full answer...
  • Is There a Base Plate Kit Confirmed to Fit a 2010 Mini Cooper S
    The Roadmaster EZ Base Plate Kit # 521877-1 states that it works with both the hard top and convertible "S" models of the 2010 Mini Cooper. I did verify this with the manufacturer. I do recommend verifying in the owners manual that your Mini can be flat towed. I tried looking this up for you, but did not find much on the subject. You will also need a tow bar, safety cables, tow bar wiring and a supplemental braking system for flat towing. Tow Bar: Roadmaster Falcon All Terrain, Non-Binding...
    view full answer...
  • Parts Needed For Flat Towing a 2009 Mini Cooper S Hardtop
    The Roadmaster EZ Base Plate Kit # 521877-1 is our only base plate which fits the 2009 Mini Cooper S hardtop. It will not fit with the sport suspension or John Cooper Works options. This will connect to your tow vehicle using the Roadmaster Nighthawk All-Terrain Tow Bar # RM-676 and Crossbar # 910021-00. You may need one of the High-Low adapters to keep the tow bars within 3" of level from vehicle to vehicle. We have a 4" # RM-048-4, 6" # RM-048-6 and 8" # RM-048-8 option to keep the bar...
    view full answer...


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