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Custom DK Fit Kit for 4 Rhino-Rack 2500 Series Roof Rack Legs - Naked Roof

Custom DK Fit Kit for 4 Rhino-Rack 2500 Series Roof Rack Legs - Naked Roof

Item # DK399
Our Price: $119.99
You Save: $113.75
Roof Rack

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This custom fit kit lets you mount 4 Rhino-Rack 2500 legs to your vehicle with a naked roof. Clamps mount to legs with bolts. Includes 4 clamps and 4 pads. Great Prices for the best roof rack from Rhino Rack. Custom DK Fit Kit for 4 Rhino-Rack 2500 Series Roof Rack Legs - Naked Roof part number DK399 can be ordered online at or call 1-800-940-8924 for expert service.
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Rhino Rack Roof Rack - DK399

  • Fit Kits
  • 4 Pack
  • Rhino Rack

This custom fit kit lets you mount 4 Rhino-Rack 2500 legs to your vehicle with a naked roof. Clamps mount to legs with bolts. Includes 4 clamps and 4 pads.


  • Custom fit kit lets you mount 4 Rhino-Rack 2500 series legs (sold separately) on your vehicle with a naked roof
  • Padded, metal clamps provide secure grip on your door jambs
    • Bolt onto leg assemblies and tighten for secure fit
    • Protect door jambs from scratches and abrasions
    • Powder coated for durability and rust resistance
  • Molded-rubber pads are custom designed to fit the contours of your roof
    • Clip onto the bottoms of your roof rack legs
    • Protect your roof from scratches and abrasions


  • Quantity: 4 clamps and 4 pads
  • Limited lifetime warranty

DK399 Custom DK Fit Kit for Rhino-Rack 2500 Series Roof Rack Legs - Naked Roof

Installation Details DK399 Installation instructions

Video of Custom DK Fit Kit for 4 Rhino-Rack 2500 Series Roof Rack Legs - Naked Roof

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Rhino Rack Roof Rack Review - 2012 Chevrolet Sonic

Today we're taking a look at our Rhino-Rack Roof Rack System. So this has the 46-inch long crossbars, the towers as well as the Custom Fit Kit for your 2012 Chevrolet Sonic. So you got a little car with a lot of personality, but what if you need to do some other things with it Maybe you wanna carry around a roof basket or a roof box or kayaks. What you then need is a roof rack system. So your options for your Sonic may be limited, especially with the hatchback version, which is what we have here. But this is still a good option because you have this Custom Fit Kit that fits perfectly into your door and you have a solid system with a great weight capacity to carry around those accessories.

We have the 46-inch long crossbars here which I think is a great balance for crossbars. I usually prefer longer crossbars just because I wanna maximize the space. But when it comes to smaller vehicles like this, you don't want them too long because when you get into your car, you don't wanna hit your head against them. So this still gives you overhang without being too long of a crossbar. In fact, taking some measurements, tower to end cap, we have 2 and a quarter inches here for our front crossbar.

Next measurement is the height added to the top of the roof. So top of the roof to top of the crossbar is 4 and a half inches which means that's where your cargo is gonna sit. If you're carrying around skis and snowboards, especially skis with extra tall bindings, you want enough clearance off the top of your roof. And if you don't have enough clearance, that's when you're gonna start taking a look at our accessories that give you that clearance. At the end of your Rhino-Rack Crossbars, you have the special Rhino-Rack Security Tool.

So you're just gonna turn this and you can pop that end cap off and now you can see the shape of your Rhino-Rack bar but as well as get access to your T-track channel. So these are the Vortex Aero Bar. So if you remember the traditional round and square cross bars, those had a lot of wind noise and wind drag when driving down the road. This is to help out with that. They're a lot more aerodynamic where they're tapered, they get larger and then they're tapered again.

It adds that sporty look to your Chevy Sonic but it also adds that practicality. If you wanna carry around kayaks, you wanna carry around skis and snowboards, this is probably gonna be the best way to do it. Now it might seem tricky to install but hopefully this video helped you out with that install process. Remember, this has 165 pound weight capacity but that includes the weight of your accessory, the weight of your cargo, and the weight of your roof rack system. So when you do use this roof rack, keep that in mind before you enjoy your adventures. This roof rack system has pretty much everything you need but I recommend grabbing your tape measure real quick as you install them. So let's take a look at that process. So the install process for this is gonna be a little bit confusing. That's just how it is with naked roofs. It is easy though, and that's what this video is for, to guide you through that process with the different numbers for the pads, different numbers for the hooks, where to put the plates, whether they're out or in, things like that. So first we'll start up with setting up your towers. So start by taking your end cap off and then you're gonna get your tower and feed it through your crossbar. And you're also gonna have this measurement strip for underneath. So for our front crossbar, you want it at 146 millimeters. So find that and then cut that to size. So I'm not gonna cut this strip just because I'm installing it for demonstration purposes but once you have it at the exact measurement you need it to be, tighten it down with your included Rhino-Rack tool. Now we're gonna set up the pad. So there's gonna be different numbers and there's gonna be different arrows on the pad. So you want the foot plate to be facing out. And then for this case, we're gonna be using 628 and it's gonna be on the right side. So if they're both facing out, you just pop them together. So just double check that both of those arrows are facing the same way before you pop them onto your tower. So now we're ready to put this onto our roof. So don't forget which one's the right side, which one's the left side, 'cause they have different components. And then gently place it on there. So your fit kit is gonna have these specific measurements for where your front crossbar and where your rear crossbar should go. So for example here, it's gonna be 5 and 29/32. So pretty much almost 6 inches. So get that measurement and then line up the center of your tower to that distance. Once they're in place, you're then going to get the hooks on. So there's that bolt, you're gonna put that through the hook and you're gonna feed it with that threaded nut back there. So it can be a little tricky. You're gonna have to use both hands and then hand tighten. So I hand tightened it first because you don't wanna tighten one side way too much more than the other. So what you could do is you can tighten it down halfway on this side. Go to the other side, go to like 75%, finish it off on the other side. That way it doesn't pull the crossbar to one side unevenly. Your Rhino-Rack tool has a torque spec. So as you pull on the end, if you have enough tightness or torque, it's gonna flatten out. And the final step, once everything is tightened down is to put your end caps on. You have your crossbar end caps and then you have your tower end caps. So you're gonna lock that with a key and you can get the metal lock core upgrade for your crossbar. Here we have the plastic one. Once all four sides are locked up, then that's it for the install. You're ready to load this up and hit the road. And that right there was a look at our Rhino-Rack Roof Rack System with the 46-inch long crossbars, the thru feet for your Rhino-Rack roof rack as well as the Custom Fit Kit for your 2012 Chevrolet Sonic..

Customer Satisfaction Score:

Customer Reviews

Custom DK Fit Kit for 4 Rhino-Rack 2500 Series Roof Rack Legs - Naked Roof - DK399

Average Customer Rating:  4.7 out of 5 stars   (2630 Customer Reviews)

This custom fit kit lets you mount 4 Rhino-Rack 2500 legs to your vehicle with a naked roof. Clamps mount to legs with bolts. Includes 4 clamps and 4 pads.

2016 Chevrolet Sonic

Fit my 2016 Chevy sonic perfectly. Easy to install with a video etrailer had done for an earlier model sonic. It has a nice look and is very functional.

2015 Chevrolet Sonic

Outstanding! Was relatively easy to install, looks great. Very aerodynamic and sturdy. Unnoticeable fuel mileage difference. Highly recommend Rhino Rack product and Product delivered promptly. Please keep up the good work and many thanks!


Fits my Chevy Sonic very well. Good quality. The roof rack was worth every dime I paid. I bought it to put bikes on my roof, but I have used to carry a canoe, sheets of plywood and plywood.

2013 Chevrolet Sonic

We put this rack on our 2013 Chevy Sonic Hatchback because it was the only model out there that would fit. It's been a year and no issues at all - no rusting, nothing coming loose, doesn't catch. We had someone experienced install it for us along with the bars and our cargo box and haven't had one issue. Definitely recommend this product - we got a great price too.

2018 Chevrolet Sonic

Smooth transaction.i got what ive expected and im planning to order the rhino basket for my rack.thank you etrailer.


Just finished it and it awesome. What was better than the rack was Olivia who made sure I got the right parts, videos and even a follow up email to check how the install went and to make sure I got my order. Awesomely done and Olivia



Great product and easy to install on chevy sonic


Great quality!






Pretty nice rack system. Held up to my 90lb canoe no problem. However a piece did fly off on the highway and the "locking" bar end cap can pull off super easy.
The directions were ok. There is some stuff you have to kind of figure out for yourself, mainly the roof trim. I plan to leave the rack on so I drilled theough the trim


Takes a little while to assemble the rack bars.
The stickers are great I can mark the positions after measuring the distance between the bars.
One of the screws is underneath the bar; it is hard to reach to tighten the bars.
Finally, I got the roof rack installed and it looks good.


Just followed all the etrailer website prompts for my naked roof Toyota Matrix and it set me up with the three packages needed- rails legs and fitkit. Installed easily enough. I like the little arrow stickers hidden in the door jams for fast re-install later. Held two 10’ kayaks on a 2 hr journey with ease.


Absolutely love the Rhino Rack. Easy to install (watch the [online] video). Looks GREAT. Hauls my kayaks no problem. Very well made and I highly recommend this product.


This is a perfect fit for our 2015 Prius V with "naked" roof. Instructions were clear and accurate, and the bars are solid and able to support our canoe and kayak easily. We added the air deflector, as there was a bit of wind noise, but now there is none. Great product at much lower price than the big names.


The Rhino 2500 series is well built. The etrailer customer service person Trevor W. was great. He was so helpful in getting the right components for my Rhino 2500 roof rack to mount to my 2010 Silverado. Thanks for the help Trevor.

by: 04/26/2023

This was the kit for my 2020 equinox. The spacing of the feet on the vortex aero bars was incorrect I had to use the Euro sizes. Went back and forth with customer service trying to get confirmation that was the right size but it never was confirmed. Everything is installed now and sturdy.


Installed this and 65" Vortex Areo crossbars on a 2015 RAM 5500 chassis cab/crew cab. It is listed to fit 1500 to 3500 RAM's and neither Rhino-Rack or etrailer would confirm it would fit the 5500. My research suggested there was not much, if any difference, between the 3500 and 5500 crew cab, so ordered it any way. Installation was relatively easy, fit seemed to be good and have made multiple 200-300 mile trips with a 75lb kayak. Good price, great customer service and fast delivery through etrailer.


Customer support was great. After reading the instructions and watching the video on how to install the Rhino Rack installation went well. The ski rack has one draw back, if you leave car out over night with skis locked in the ski rack, every thing can be easily stolen. All you need is an Allen wrench to remove the ski rack with the skis. The roof rack has locking covers the prevent theft of the roof rack. The ski rack can be easily removed from the roof rack.


Easy assembly and installation. Pay careful attention to pad direction as shown in instruction sheet for the fit kit. One gripe: one end-cap refuses to lock (blue plastic key lock). Had to tape it on so I don’t lose it.


The roof rack is great, just pretty pricy, by me standards.
My only problem with the whole experience was that the roof rack comes in there separate packages. In my order, one package was omitted, which created some confusion. I had to go back to the company and request that the 3rd package be sent.
Otherwise I'm happy with the purchase.
I responded to a previous request fro feedback, so I'm not sure why I'm being asked again, but . . .


These were exactly the right part for my car. They were easy to put on the crossbar kit. The crossbar kit also worked great. I can't imagine how a more expensive set would have worked better than the Rhino Rack we bought.

Show More Reviews

See what our Experts say about this Rhino Rack Roof Rack

  • Recommended Roof Rack and Kayak Carrier for 2014 Chevy Sonic Hatchback with Sunroof
    Installing a roof rack on your 2014 Chevy Sonic Hatchback that features a powered sunroof is not an issue. The potential problem is only if you want to operate the sunroof with the crossbars mounted on the roof, as it's possible that it may interfere with the bars when being raised or with any accessories you have mounted like your kayaks. Generally speaking though, we don't recommend opening the sunroof with a roof rack installed anyway, as the crossbars (even the quieter aero-style units)...
    view full answer...
  • Thule Accessories Compatibility with Rhino-Rack Roof Rack Systems
    Thule square bar accessories will often adapt to work with the Rhino-Rack Aero Bar Crossbars # RRVA118B-2, 2500 Series Legs # RRRLKVA, and Custom DK Fit Kit # DK399 without issue. This roof rack is a confirmed fit for your 2014 Chevy Sonic. If you go to the Aero style bars, I recommend # RRRS615 which is a confirmed fit for your vehicle. Thule accessories have many aero mounts and slot mount hardware for different accessory fits. If you let me know the accessories, I can help if additional...
    view full answer...
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  • Roof Rack Recommendation for 2012 Chevy Sonic
    The track mounted roof racks all use the same dimensions for the channels. They all use a 3/4 inch by 3/4 inch channel and we have found that the feet kits of the racks all fit in the same channels. That being said, the roof of your vehicle has a curve to it and mounting tracks to it would not be an ideal solution. Plus it will permanently modify the roof. The track setups really should only be used on flat surfaces like pop up campers and truck bed camper shells. The best solution will...
    view full answer...
  • Will Thule Pulse L Cargo Box Fit on 2017 Chevrolet Sonic Hatchback with Roof Rack
    If you had a roof rack installed on your 2017 Chevy Sonic like the Rhino Rack part # RRVA118B-2, # RRRLKVA, and # DK399 you could easily install and use the Thule Pulse L part # TH615 which is a confirmed fit.
    view full answer...
  • Fairing for Rhino-Rack Euro Square Bar Roof Rack on a 2016 Chevy Sonic RS
    Yes, we do have fairings that will work with the square crossbars for your 2016 Chevy Sonic RS. You could use a Rhino-Rack fairing, # RRRF3. To complete the most popular aero roof rack you will also need custom clamp kit # DK399, feet # RRRLKVA, and crossbars # RRVA118B-2. You can use a fairing with this rack as well if desired. The bars will create far less wind noise than the square bars which Rhino-Rack has moved completely away from.
    view full answer...
  • Availability of Roof Rack for 2012 Chevy Sonic 5 Door Hatchback
    Rhino Rack offers roof racks compatible with your Sonic hatchback. If you are looking for the best rack for the price option, an aero bar rack can be constructed of the following parts: 44 inch long crossbars, part # RRVA118B-2 or # RRVA118S-2 Leg Kit, part # RRRLKVA Vehicle specific clamp kit, part # DK399
    view full answer...

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