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Rhino-Rack Universal Pioneer Platform Rack for Crossbars - Aluminum - 48" Long x 38" Wide

Rhino-Rack Universal Pioneer Platform Rack for Crossbars - Aluminum - 48" Long x 38" Wide

Item # RR42114BF
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Our Price: $567.00
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Product Expert Brian T

Is this right For you? Product Expert Brian T says:

Yes, if you:

  • Want to easily carry oversized and bulky gear
  • Want to customize your basket to carry bikes, kayaks, hi-lift jacks, or spare tires
  • Drive off-road when camping or hiking

No, if you:

  • Don’t want to spend extra money for side rails
  • Have concerns about assembly - platform comes completely unassembled
Built for off-road use, this platform rack's large, flat surface accommodates loads of all shapes and sizes. Clamps to roof rack crossbars with brackets or bolts to crossbar channels with hardware. Compatible with many Rhino-Rack accessories. Lowest Prices for the best roof rack from Rhino Rack. Rhino-Rack Universal Pioneer Platform Rack for Crossbars - Aluminum - 48" Long x 38" Wide part number RR42114BF can be ordered online at or call 800-298-1624 for expert service.
  • All Info
  • Reviews (124)
  • Q & A (0)
  • Photos
  • Used (1)
  • Why etrailer?

Rhino Rack Roof Rack - RR42114BF

  • Complete Roof Systems
  • Platform Rack
  • Rhino Rack
  • 48L x 38W Inch
  • Black
  • Aluminum

Built for off-road use, this platform rack's large, flat surface accommodates loads of all shapes and sizes. Clamps to roof rack crossbars with brackets or bolts to crossbar channels with hardware. Compatible with many Rhino-Rack accessories.


  • Universal platform mounts to your roof rack crossbars to let you carry cargo and accessories
    • Not compatible with Rhino-Rack Heavy Duty crossbars
  • Large, flat surface accommodates more diverse loads than traditional crossbars or roof baskets
    • Perfect for tailgating, road trips, and overlanding - a great fit for any outdoor lifestyle
  • Integrated channels accommodate various off-road and traditional roof rack accessories (all sold separately)
    • Compatible with rail systems, awnings, light brackets, shovel holders, spare tire carriers, and more
    • Available accessory bars allow kayak carriers, cargo boxes, and other roof rack gear to be mounted
  • Low-profile, aerodynamic design reduces wind noise and drag
  • Rugged construction designed for off-road use and tested for Australian conditions
    • Aluminum frame and reinforced nylon connectors are powder coated for durability
  • Easy installation on roof rack crossbars with universal mounting hardware
    • Clamps to crossbars with brackets or bolts to crossbar channels with included hardware
  • Assembly required


  • Application: round, square, aero, elliptical, and most factory crossbars
    • Maximum crossbar dimensions: 3" wide x 1-1/2" tall
  • Quantity: 1 platform
  • Dimensions: 48-3/8" long x 37-1/2" wide x 1-1/2" high
  • Weight: 32 lbs
  • 5-Year limited warranty

Note: Load capacity of your roof rack is divided by 1.5 when you are driving off-road.

pioneer in use on trail

Built for off-road use and tested in harsh Australian conditions, the Rhino-Rack Pioneer platform is a comprehensive solution for your cargo carrying needs. This platform's large, flat surface lets you carry more gear than a typical roof rack, freeing up space inside your vehicle. The Pioneer uses integrated channels in the planks and side rails to accommodate a wide variety of Rhino-Rack accessories, including rail systems, awnings, light brackets, and more. The platform mounts directly to your crossbars.

The Perfect Roof Rack for Any Outdoor Lifestyle

pioneer with accessories

Whether you are overlanding, camping, or tailgating, the Pioneer platform's ample surface space lets you carry a large amount of cargo and gear. This helps free up space inside of your vehicle so you and your passengers can travel comfortably. The integrated channels located in the planks and side rails let you install channel-mount accessories, like an awning or kayak carrier, similar to a traditional roof rack. But, there are also several accessories that install exclusively to the Pioneer platform, such as the aluminum folding ladder and gas can holders. And because of the platform's design you can utilize many of these accessories at the same time.

front and side railsfull rails

Additionally, a rail system can be installed to enhance your application. The rails bolster the safety of your load and create additional tie-down points for your gear. They are easy to install and simply bolt into the channels on the platform's side rails. This platform is compatible with front and side rails (RR43165B - sold separately) and full rails (RR43189B - sold separately).

Utilitarian Design with Rugged, Off-Road Look

pioneer aerodynamic design

The Pioneer platform was designed with utility in mind and features a rugged, off-road look. The low-profile tray was also designed to be aerodynamic to help reduce wind noise and drag.

Strong, Durable Construction

pioneer close up

Strong, yet lightweight, the platform's frame is constructed of aluminum and includes reinforced nylon connectors. Since these materials are powder coated and non-corrosive, the platform won't rust or fade when exposed to the weather. Rhino-Rack has rigorously tested the Pioneer in the harsh Australian outback, ensuring it's built to withstand anything your adventures throw at it.

Universal Fit on Most Crossbars

This Pioneer platform rack fits most crossbars and includes all the parts necessary to install it. However, it is not compatible with Rhino Rack Heavy Duty crossbars. The platform comes unassembled, so you will have to put it together before proceeding to the installation. After this is complete, simply use the clamps to connect the bars on the bottom of the platform and crossbars together. Alternatively, you can bolt the platform to the integrated channels on the crossbars using the upper clamp and included hardware.

42114BF Rhino Rack Pioneer Platform Rack - 48" Long x 38" Wide - Universal Mount

Installation Details RR42114BF Installation instructions

Customer Reviews

Rhino-Rack Universal Pioneer Platform Rack for Crossbars - Aluminum - 48" Long x 38" Wide - RR42114BF

Average Customer Rating:  4.8 out of 5 stars   (124 Customer Reviews)

Built for off-road use, this platform rack's large, flat surface accommodates loads of all shapes and sizes. Clamps to roof rack crossbars with brackets or bolts to crossbar channels with hardware. Compatible with many Rhino-Rack accessories.

- RR42114BF

Purchased this about a month ago after having a mediocre cargo basket that started to rust after 2 weeks. This platform is not only more convenient and adaptable but it looks [really] great! Took some time to assemble but I made that every piece fit and lined up correctly. Nice finish and strongly constructed. I should have gotten this first! I also got the matching rail system to complete the set-up. Highly recommended. Shout out the the staff at etrailer for again for the great communication from start to finish!

1 year review. I’m still loving this Rhino Rack Pioneer Platform Rack. I haven’t had any problems since I installed it. My biggest worry was it rusting here in Hawaii as I’m close to the beach and live in a area where I get a lot salt air that reeks havoc on anything metal. I still get a lot of compliments especially from other Rhino Rack owners. No regrets!
D N - 03/07/2022

- RR42114BF

Exactly as described. Bought this rack for my 37” spare tire. Still leaves room for me to add other items as needed on my bars.

- RR42114BF

2011 Ford E350 Super Duty Van. Can’t beat the quality & all the options that can be used with Rhino Platforms! This will come in very handy! Thanks etrailer!!

- RR42114BF

Adds personality and efficiency with a lot of quality, this size (small)is perfect in my mini countryman. Thank you etrailer associates for your great service!.

- RR42114BF

works as designed

- RR42114BF

I like this platform easy to install. I just wished that there was a more knowledgeable place near me so I can get more accessories. Rhino rack has a lot of accessories and I’m not sure what fits my platform

- RR42114BF

Looks good will see you at last

- RR42114BF

- RR42114BF

- RR42114BF

- RR65TB

Review from a similar Pioneer in Roof Rack

Very nice platform that fit my needs. Costs a bit more than some others, but once it is put together it is very solid. I like the eco-system of tie-downs, mounts, etc. that you can get for it. Those accessories are what really makes it worth it. The flexibility of the channels makes mounting everything easy and quick. This rack doesn't come with the specific mounts for any vehicle, so make sure you look for whatever you need to attach it to your rack as well. Assembly took longer than I expected (about 3-4 hours, including mounting to my vehicle), with over 100 bolts to assemble. Comes with a nice torque wrench that helps a lot. Instructions were good overall, but pay attention to the screws for the corners, as they are mislabeled. Also, measuring guidelines painted on the side rails are nice, but they are not perfectly aligned on the left and right side. I found it easier to use a tape measure and pencil to make sure the cross supports were straight. While I didn't use them yet, this rack also has internal wiring channels enclosed in the perimeter frame that I could see being very useful.

- RR98AB

Review from a similar Pioneer in Roof Rack

Rhino rack builds a great product. The armada backbone and pioneer platform are sturdy and fit well. Customer service and shipping from etrailer were flawless.

- RR43QX

Review from a similar Pioneer in Roof Rack

I called etrailer to verify fitment on my 2013 Ford E-350 XL. Everything arrived sooner than quoted, and instructions were clear. It took me approximately 6 hours to assemble by myself. I had 3 buddies over to put it on the van because it is ~100lbs and 100”x62”. We put towels on top of the van and slowly slid the fully assembled rack on top of the van. It took a while to level everything (30 mins?), but overall went on well and looks great. The instructions didn’t clarify where the C-channel bars are supposed to be spaced to, but I used basic math skills and spaced each C-channel evenly spaced. It feels very strong. I believe it was 33mm on center for each C-Channel. Looking forward to camping in a few weeks!

- RR77AB

Review from a similar Pioneer in Roof Rack

Very nice rack. It holds well and not too noisy when on the highway. I did drill a couple holes in the rack to hold my roof top tent down. Also like how many accessories are available for the Pioneer Platform Rack.

- JA9965

Review from a similar Pioneer in Roof Rack

I bought this roof rack to mount on my 2018 Toyota TRD Off Road 4Runner. The reason I purchased it was because of the versatility that this product offers. There are many roof racks out there for my vehicle. Some are cheap and some are expensive. Some racks are smaller and some are full size. I was looking for a rack that wouldn't break the bank as well as cover a majority of the roof (without drilling). I have two young kids and I'd like to get them out more. Hence, buying the 4Runner as well as the rack. This rack will enable me to load a ton of stuff on it in the future such a roof top tent, awning, etc. Even though I'm somewhat handy, the installation did take around 3-4 hours. I did have one other person helping me. I highly recommend having an additional set of hands helping during the installation. The sides rail installation was easier than I thought it would be. The platform itself took longer to install. Overall: very happy with this product. I highly recommend it.

I love this roof rack! Since I purchased it, I also purchased the eye bolts for the rack and have used them numerous times over the past year. I have been able to move many different things on top of the rack. At this point, Im looking at possible getting the side guards in the near future.
Andrew P - 10/22/2020

- JA8213

Review from a similar Pioneer in Roof Rack

I ordered the Rhino Rack Platform Rack with Backbone System for my 2016 Jeep Wrangler Unlimited to enable it to mount a rooftop tent. The rack is expensive at about $1600 all in, but I have no question about this rack’s capabilities and it looks awesome. I prepped myself by watching several different videos, including etrailer’s installation video. Everything went fairly well, but I encountered a couple of minor issues. First, when I bolted the platform extrusions to the end rails from the bottom of the rack, I didn’t pay attention to the topside of the extrusions. After completing this and turning the rack right side up, I found that each screw had forced the ends of each extrusion up slightly so that they were not flush to the end rails. I am debating whether to leave this as is or to remove each screw and add another washer to relieve the pressure it is causing. Second, although I carefully placed the rear and middle brackets in position and was careful with the drilling template for the front bracket, there was still some misalignment that couldn’t be overcome by the small ovals where the legs connect to the platform. I had to expand these ovals by drilling them wider. Eventually I got a good fit. Finally, the quick mount legs required two different keys to remove the platform. This was caused by the quick mount legs coming in the form of two separate kits. One kit contained two legs and one key (no spare) and the other kit had four legs and two keys. The key numbers from these two sets were different. I contacted etrailer, but they had no control over the key set packaging and referred me to Rhino Rack. Rhino Rack was very responsive and sent me new cylinders and keys so that I had locks that were all keyed the same, as well as having a total of four matching keys. We haven’t used the rack yet, but I love the styling and enhancement it gives my Jeep. Just check out my picture...

I still love the Rhino Rack platform and it works great with my rooftop tent!
C-92 - 09/21/2020

- JA8547

Review from a similar Pioneer in Roof Rack

The RINO RACK AND PIONEER PLATFORM are a great addition to my little Wrangler. etrailer folks were very helpful in determining exactly what I wanted and needed. The assembly instructions are very good - even though there are a lot of parts to assemble. I was able to complete the assembly by myself (with help getting the top off the jeep.) If I can offer a recommendation from my experience, I would pre-assemble the entire unit with the mounting brackets finger-tightened to the platform AND THEN set it on the roof - to insure that the holes needed to be drilled are in exactly the right spot. I had to re-drill two holes and maybe that was my own fault, but until I did, i could not get the platform to rest in the mounting brackets. All that said, I am VERY PLEASED with the RINO RACK product. It is very secure, easily accessible, very low profile (3" from roof to top of rack), large platform that still allows removal of the Freedom Top on my rig. It will give me the extra carrying capacity as we tow the jeep behind the motor home from Arizona to Alaska and hit lots of back country for tent camping in the process!!

Iwe continue to enjoy and appreciate the platform- AND i have addedthe rails, which have really helped with securing a load!!
LEE H - 03/29/2020

- RR77AB

Review from a similar Pioneer in Roof Rack

Loving my new Ford Bronco Sport Badlands model and the Pioneer Platform rack! With the Bronco Sport being so new, locating quality accessories was a bit of a challenge. I was excited to see Rhino Rack had the Pioneer Platform rack system I was looking for to start my build! Vicki at etrailer was super helpful in finding the parts, as listed on the Rhino Rack website, to make up the system. The etrailer site had not been updated to include the compatibility with the Pioneer System yet for the Bronco Sport. The parts were actually in stock and ready to ship! I’m giving the Rhino Rack Pioneer Platform 5 stars for ease of assembly and product quality. Assembly and install took about 3 hours, with several fore/aft adjustment to allow for complete operation and clearance for the Bronco Sports moonroof. This rack is the foundation for the complete “overland” conversion to come!

- RR42103BF

Review from a similar Pioneer in Roof Rack provides fantastic customer service and great communication in every step of the process from order to delivery. The website had valuable product and installation videos that also made the installation process easy. The selection of products is extensive for trailer, truck, and rv.

- RR42103BF

Review from a similar Pioneer in Roof Rack

Good quality product that seems to be made well. Not too bad to put together, make sure you have an extra hand putting this on the topper. Use an extra washer when putting on each slat, the bolts are too long and will push through on the front side.

- RR68AB

Review from a similar Pioneer in Roof Rack

Ordering super easy, shipping was very fast (doesn't happen so much during covid). Wish you would sell the wider so that rack fit over sides of vehicle better. Make certain to measure where the crossbars mount to the vehicle in millimeters. Being off by 1/8 inch on front bar means the back wont align at all. Other than that the instructions were perfect. There weren't any pictures nor much in the manuals about this alignment step (only the on line you tubes briefly touched on it). I would buy one more long piece & 2 wider end pieces so that the entire rack fit OVER the sides of SUV, but could not get anyone to sell me that option.

- JB0702

Review from a similar Pioneer in Roof Rack

Excellent build and fit for the 2019 RAM Power Wagon WITH a sunroof. I would highly recommend using additional RTV to seal the holes. It barely clears the Sat antenna and the sunroof. The satellite radio cuts off easier because of the rack being on top of it. Instructions are clear enough for a DIY-type person to get this done properly. The rack, just like any roof rack does introduce more wind noise at high speed.

- RR33AB

Review from a similar Pioneer in Roof Rack

I can’t say enough about… fast shipping, and the most comprehensive tracking I’ve ever seen! I will definitely be shopping at etrailer in the future. The Rhino rack kit is incredibly sturdy. The instructions are not narrated well, but this wasn’t my first rodeo… definitely a well made product from down under. Mounting the rails was a bit daunting… you WILL need that supplied Allen wrench… bring your patience! All in all just a beautiful burley roof rack. I’m very satisfied with my purchase. Thanks again… you guys rock!

- RR77AB

Review from a similar Pioneer in Roof Rack

The roof rack is great and very useful. The assembly is simple but it was difficult to figure out because the instructions were useless. Mounting on my vehicle was difficult. It was a situation of needing to tighten it once it was in place but not having enough access to the face of the bolt to get a tool on it. Now that it’s up, it’s looking good and because it’s not that easy to fasten it back on, it’s going to stay up there.

- JA9328

Review from a similar Pioneer in Roof Rack

I have been looking a long time for a good roof rack for my 2018 Toyota 4Runner and decided on the Rhino Pioneer Platform with the Backbone mounting system. Removal of the factory side rails was very easy. Putting the platform together was relatively easy and installing the Backbone mounting system in the existing factory holes was also quiet easy. Attaching the platform to the Backbone mounting system was a bit more challenging for me. I tend to take my time and double check everything as I go. Total build and installation time was approximately 6 hours. The end result is fantastic, it looks great, is very solid, will easily accommodate my needs (Rooftop Tent, lumber trips to Home Depot, Kayak, Mountain Bike, etc.). I have taken a couple of trips on the highway 80MPH and the wind noise is noticeable but acceptable. I will probably purchase the wind deflector and hope this will also positively impact the gas mileage. The people at etrailer are exceptional to deal with! Their pricing is good, their communication is excellent, shipping was fast, the packaging was perfect with all parts well protected and nothing missing. If you have any questions about the product or installation, they are knowledgeable and happy to help. The rack is solid, good looking, and well made. At this point my only concern is the high price for various accessories. I highly recommend this roof rack system and dealing with etrailer is a pleasure.

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Used Picture for Rhino-Rack Universal Pioneer Platform Rack for Crossbars - Aluminum - 48" Long x 38" Wide
Used Picture for Rhino-Rack Universal Pioneer Platform Rack for Crossbars - Aluminum - 48" Long x 38" Wide
Used Picture for Rhino-Rack Universal Pioneer Platform Rack for Crossbars - Aluminum - 48" Long x 38" Wide
Used Picture for Rhino-Rack Universal Pioneer Platform Rack for Crossbars - Aluminum - 48" Long x 38" Wide

Condition: Missing Parts

Notes: Missing 2 bolts and 4 washers out of the hardware kit. Otherwise everything else there, like new.

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