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RockyMounts Gigawatt Bike Rack for 2 Bikes - 2" Hitches - Wheel Mount
RockyMounts

RockyMounts Gigawatt Bike Rack for 2 Bikes - 2" Hitches - Wheel Mount

Part Number: RKY37MR
$1,045.83
Retail:$1,128.32
You Save: $82.49
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This heavy-duty 2-bike rack is perfect for carrying electric bikes and bikes with fenders or carbon frames. Generous spacing between trays prevents bike-to-bike contact. Included ramp lets you roll your bikes onto the rack. Tilts with bikes loaded. 1-800-940-8924 to order RockyMounts hitch bike racks part number RKY37MR or order online at etrailer.com. Free expert support on all RockyMounts products. Great prices and Fastest Shipping for RockyMounts Gigawatt Bike Rack for 2 Bikes - 2" Hitches - Wheel Mount. Hitch Bike Racks reviews from real customers.
  • All Info
  • Reviews (5)
  • Q & A (0)
  • Videos (3)
  • Photos

RockyMounts Hitch Bike Racks - RKY37MR

  • 2 Bikes
  • Fits 2 Inch Hitch
  • Platform Rack
  • Carbon Fiber Bikes
  • Electric Bikes
  • Heavy Bikes
  • Folding Rack
  • Tilt-Away Rack
  • RockyMounts
  • Wheel Mount
  • Class 3
  • Bike and Hitch Lock

This heavy-duty 2-bike rack is perfect for carrying electric bikes and bikes with fenders or carbon frames. Generous spacing between trays prevents bike-to-bike contact. Included ramp lets you roll your bikes onto the rack. Tilts with bikes loaded.


Features:

  • Platform bike rack carries 2 bikes using your vehicle's hitch receiver
  • Ratcheting hooks on pivoting upright arms hold your bikes securely by the front wheels
  • Trays with sliding rear wheel straps let you carry bikes with different wheelbases
    • Generous spacing between trays helps prevent bike-to-bike contact
  • Front-mounted hand lever lets you tilt and fold the rack with ease
    • Tilts with bikes loaded to access cargo area
  • Included ramp lets you roll heavy bikes onto the rack
  • Anti-rattle hitch pin reduces movement of rack in hitch receiver
  • Keyed-alike locks deter theft of your bikes and the rack
  • Durable aluminum with black powder coat finish is corrosion resistant


Specs:

  • Application: 2" x 2" trailer hitch receivers
  • Carrying capacity: 2 bicycles
  • Weight capacity: 80 lbs per bike
  • Maximum tire width: 4.5"
  • Maximum bike wheelbase: 55"
  • Wheel diameter: 20" - 29"
  • Distance between bicycles: 15"
  • Weight: 52 lbs
  • Ramp length: 48"
  • Limited lifetime warranty


Approved for use on cars, trucks, SUVs, vans, fifth wheels, motorhomes, and flat-towed vehicles - not approved for travel trailers


10264 RockyMounts Giga Watt Bike Rack for 2 Bikes - 2" Hitches - Wheel Mount

Installation Details RKY37MR Installation instructionsAlternate Instructions RKY37MR Installation instructions


California residents: click here


Video of RockyMounts Gigawatt Bike Rack for 2 Bikes - 2" Hitches - Wheel Mount

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




Video Transcript for A Closer Look at the RockyMounts Gigawatt Bike Rack on a 2024 Subaru Outback Wagon

Hi, everyone. Aiden here with etrailer. If you own a 2024 Subaru Outback, but you've also got some really heavy E-bikes that you sometimes have trouble transporting and you need a bike rack that's gonna work for you and make it easier to load those bikes, then the Rocky Mounts GigaWatt I think is gonna be a really great solution for you. The GigaWatt comes with an included loading ramp and it's really long too, so it's gonna make it very easy to ramp the bikes up and down. We'll see that in just a little bit. You're also gonna get an 80 pound weight capacity per bike, which is pretty much as heavy as it gets for a two bike rack like you see here.

It's really impressive and the tracer spaced really far apart from one another, so you're very unlikely to have bike to bike contact issues when you're loading those bikes up. You're gonna be holding those bikes primarily by our front tire using the wheel hook, so that makes no frame contact. It's a good option then for carbon frame and alternative frame bikes and that wheel hook has an extra strap. Generally when you're hooking your bike up, you want the wheel hook to sit as close to the forks as possible, but if you've got front fenders, you're gonna have to put it somewhere further away. If you do that, you'll use this strap to wrap underneath your wheel and back up top wrapping around the wheel entirely.

Therefore avoiding the front fender but still giving you a solid hold on your front tire to keep it from twisting. You're gonna have the ability to tilt the rack away with bikes loaded here just by pulling the pin and lowering the rack down. I will say that where the pivot point is located, it does put a little bit more of that weight on you. So if you're going biking with a friend, have them maybe help you lower it down if you are looking to make this process a little bit easier. But it does give you plenty of room to get into the back of your Outback.

Maybe have a place to sit down and change your shoes before or after your ride, put on your helmet, things like that, or grab out your loading ramp. The loading ramp, like I said, is very long, but it does fit in the back of the Outback. You just have to feed it in and take it out a little bit more carefully. But I do really like the fact that it's so long because it's gonna give us a more shallow angle of approach and because it's solid, you don't have to worry about it being flimsy. So when you are ready to use it or unload the bike, make sure you just have it lifted up flat like this and I'm just gonna take it over to the rear of the tray where you can hook it up and start to undo our bike from the rack.

To get that bike unloaded, we'll start at the bottom where we've got two wheel straps to take care of. These are gonna be done first because they don't hold the bike upright or anything like that. They're just secondary support. So just push in on that button and push the ratcheting strap out. I'm might have to press a little hard if you maybe tightened it a little too much like I did and on the front wheel it's gonna be an adjustable rubber strap that stretches over. I'm just gonna take care of that right now and we can move up to that hook. There's gonna be a little trigger latch that you can squeeze, push up and out on the hook. Most of the touch points though are color coded blue, so they're really easy to tell apart from the rest of the rack. And once you're done, all you gotta do is wheel it down off of the ramp. These trays are just really wide and it makes this whole process extremely easy. And with the Outback sitting a little lower to the ground, that angle of the ramp is not very aggressive, so it makes this process a lot easier too. When it comes to bike racks with ramps included, there's a couple other major players that I'd probably compare this to and it's gonna be the Hollywood Racks Destination E-bike rack and the Yakima OnRamp LX. Of the three choices, the GigaWatt is by far my favorite ramp because it's extra long. It's gonna be one solid piece and it's very easy to hook up and use. While it's maybe a little bit harder to store than the other ones, I'd much rather take that knowing that it fits with our Outback and in exchange just get an easier to use higher quality ramp. There's a few measurements I want to check out before we fold the rack up though. The first is our ground clearance at the back end, the lowest point to the ground's about 19-1/2 inches, which really is pretty good. You get a good rise from the shank. So while this is a longer rack, I don't think you'll ever have to worry about ground clearance issues on your Outback. Taking a look at that length though we can see that from the bumper it's sticking out about 34 inches. That is a little bit more than most two bike racks, especially on the Outback. So when you are driving around with this loaded, just know that it's gonna be adding a little bit more length and it's probably gonna be a bit harder to park with. But again, in exchange for that, you get trays that are spaced much further apart, so when you are ramping the bikes up and down, it makes it a lot easier 'cause you're not really competing for space between the two trays. We can fold this up though for easier storage using that same pin that we pulled to tilt it, only this time pushing up and in. This is gonna save you a ton of space. From the bumper now only sticking out 12 inches. This is extremely compact and it's gonna make it much easier to drive around with and park with. Taking a closer look at the hitch, we see it's fitting inside of our two inch by two inch receiver tube and it does come with a locking anti-rattle bolt. That anti-rattle is gonna keep things solid and secure in the hitch and the lock will make sure that no one can mess with your rack when you're not around. But overall, I'm a big fan of the GigaWatt. Of all the bike racks we carry here at etrailer that come out of the box ready to go with a ramp and that are e-bike capable, this is by far my favorite package because I think it's just gonna be the easiest to use with the ramp and it's gonna give you the widest range of possible bikes you could load on here and not interfere with one another. I'd say its biggest downfalls are how big it is physically and how big it's gonna be weight wise because the bigger the rack gets, the heavier it also gets. So if your strength just isn't quite there, you're looking at a ramp bike rack because you want to make it easier to load your E-bike and you're not super comfortable managing the weight of the rack on your own, this might not be the best option for you because of that. If that's the case, I would say look into something like the Thule Epos. That's gonna give you a pretty solid weight capacity of up to 75 pounds for one bike. So long as your two bikes don't exceed 140 pounds total and there is an option to buy a ramp attachment separately. It's a shame that it doesn't come out of the box with it, but that's one of the easiest to use bike racks out there and it's still very capable in terms of weight capacity. But if you like the features you saw for the GigaWatt and you don't wanna buy any extra pieces separate, then I think this is gonna be a really excellent option for the 2024 Subaru Outback. My name's Aiden and thanks for watching.

Ratings & Reviews

5.0

5 reviews
This heavy-duty 2-bike rack is perfect for carrying electric bikes and bikes with fenders or carbon frames. Generous spacing between trays prevents bike-to-bike contact. Included ramp lets you roll your bikes onto the rack. Tilts with bikes loaded.

by:

So far so good! Haven't tried it with the bikes yet. Easy installation. It's solid. Been driving with it on the car. No rattles or vibration. Easy tipping for back access to a Kia Sorento RV. Doesn't block back view or rear camera.

*Edit*
Wanted to add to my review of my RockyMounts Gigawatt Bike rack. Finally got to put the bikes on it and go. Love it. Solid as a rock. My wife who is 75 had both bikes on and tied down in less than 10 minutes. Love the rack!

Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

9/2/2025

You wife may be faster than Speed Racer! I'm glad getting the bikes on the rack is so easy, and fast. Do you and your wife do a lot of biking locally or do you do any traveling with the bikes?

Jack profile picture

Jack

9/2/2025

@GwendolynYWe do a lot of local riding and places within 50 or so miles. Traveled to Jekyll Island which is about 100 miles. Looking forward to doing it with our new rack. Our old rack worked, but was a pain to use. So far very happy with this rack!
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

9/6/2025

@Jack I checked out Jekyll Island and it looks like it was worth the drive! I've really have only visited Atlanta, but you have perked my interest in Jekyll Island.
Jack profile picture

Jack

9/6/2025

@Gwendolyn It's a little pricy, but it is worth it. A lot of bike trails. Great beaches! We usually stay for a couple of days. Great times the few times we have gone. You will have a great time if you go!
See All (4) Replies to Gwendolyn Y. ∨


by:

Very well constructed. What I had to put together was easy to assemble. When I put the tire holder on I used a clamp to bring the sides together and the bolts lined up perfectly. Bikes load up with ease. Highly recommend!!



by:

Very easy to use



by:



by:


5
5

See what our Experts say about this RockyMounts Hitch Bike Racks

  • Will RockyMounts Gigawatt Bike Rack Work with Aventon Bike with Front Fender
    Thanks for reaching out about this, Steve! Our video team currently has the RockyMounts Gigawatt Bike Rack # RKY37MR on their list to get a video made for. I don't have a timeline of when it will get completed and posted, but stay tuned and hopefully it will be posted sooner rather than later! UPDATE: The video is now live and ready to view! I'm linking it to this answer page for you to check out!
    view full answer...
    Image 1 for
  • Does the RockyMounts Gigawatt Bike Rack RKY37MR Work w/ a Tern Quick Haul Cargo E-Bike?
    Yes, it will! The RockyMounts Gigawatt Bike Rack for 2 Bikes item # RKY37MR has an 80 lbs per bike capacity and works with tires as small as 20". The placement of your front fender will not interfere with the locking clamp. The Gigawatt Bike Rack item # RKY37MR mounts to a 2" receiver and weighs only 52 lbs. It is compatible with all motor vehicles, motorhomes, 5th wheel trailers, and flat towed vehicles. It is not rated to be used behind a travel trailer. I have linked a review video...
    view full answer...
  • Can The RockyMounts Extender RKY10011 Be Used With A RockyMounts Gigawatt Bike Rack?
    Hi James! The RockyMounts Hitch Extender LS w/ Hitch Pin and Lock - 2" Hitches - 8" Long # RKY10011 can indeed be used with the RockyMounts Gigawatt Bike Rack for 2 Bikes - 2" Hitches - Wheel Mount # RKY37MR. Just be aware that using an extender like this, even with its anti-rattle locking hitch pin, it will cut the carrying capacity of your hitch in half. With that said, I would not use bikes over 40 pounds when using it to keep everything safe. What kind of bikes are you wanting to...
    view full answer...

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