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RockyMounts TomaHawk Roof Bike Rack for Fat Bikes - Wheel Mount - Clamp On - Aluminum

RockyMounts TomaHawk Roof Bike Rack for Fat Bikes - Wheel Mount - Clamp On - Aluminum

Item # RKY1222
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Our Price: $199.95
Roof Bike Racks
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Shipping Weight: 18 lbs
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This low-profile bike rack lets you carry 1 fat bike on your vehicle's roof without making frame contact. Includes 2 fat bike wheel straps for tires up to 5" wide. Clamp on brackets install on most roof rack crossbars. Lowest Prices for the best roof bike racks from RockyMounts. RockyMounts TomaHawk Roof Bike Rack for Fat Bikes - Wheel Mount - Clamp On - Aluminum part number RKY1222 can be ordered online at or call 1-833-496-1390 for expert service.
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  • Reviews (35)
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RockyMounts Roof Bike Racks - RKY1222

  • Wheel Mount
  • Aero Bars
  • Factory Bars
  • Round Bars
  • Square Bars
  • Elliptical Bars
  • Disc Brake Compatible
  • RockyMounts
  • 5mm Fork
  • 9mm Fork
  • 15mm Fork
  • 9mm Thru-Axle
  • 15mm Thru-Axle
  • 20mm Thru-Axle
  • Fat Bike
  • Locks Not Included
  • Clamp On - Standard
  • Black

This low-profile bike rack lets you carry 1 fat bike on your vehicle's roof without making frame contact. Includes 2 fat bike wheel straps for tires up to 5" wide. Clamp on brackets install on most roof rack crossbars.


  • Wheel-mount carrier lets you transport 1 fat bike on your roof rack crossbars
    • No contact with your bike frame and no wheel removal required
  • Ratcheting, padded hook and extra wide metal wheel brace secure your bike by the front wheel
    • Won't scratch or scuff your bike's frame
    • Wheel brace folds down when not in use
  • Pivoting arm folds down flush with tray when not in use
    • Installs on either side of vehicle
  • Ergonomic handle and non-pinching trigger make arm easy to operate
  • 59-1/2" Long, tubular tray with endcap fits a wide range of tire sizes
    • Includes 2 fat bike wheel strap extensions to accommodate tires up to 5" wide
    • Fits bikes with 20" - 29" wheels
  • Sliding, ratcheting plastic straps secure front and rear wheels to tray
    • Adjusts to fit different bike wheelbases
  • Streamlined, low-profile design minimizes wind noise
  • 2 Lock cores (RKY0332 - sold separately) secure bike to carrier and carrier to roof rack
  • Lightweight, corrosion-resistant aluminum wheel tray with black powder coat finish
  • Universal mounting hardware allows for flush fit on most roof rack crossbars
  • Brackets on front and rear of rack clamp around crossbars


  • Carrying capacity: 1 bicycle
  • Application: round, square, aero, elliptical, and most factory crossbars
  • Weight capacity:
    • On aftermarket crossbars: 45 lbs
    • On factory crossbars: 35 lbs
  • Dimensions: 59-1/2" long x 12" wide x 3" tall
  • Limited lifetime warranty

1222 RockyMounts TomaHawk Roof Bike Rack for Fat Bikes - Wheel Mount - Clamp On - Aluminum

Installation Details RKY1222 Installation instructions

Customer Reviews

RockyMounts TomaHawk Roof Bike Rack for Fat Bikes - Wheel Mount - Clamp On - Aluminum - RKY1222

Average Customer Rating:  4.7 out of 5 stars   (35 Customer Reviews)

This low-profile bike rack lets you carry 1 fat bike on your vehicle's roof without making frame contact. Includes 2 fat bike wheel straps for tires up to 5" wide. Clamp on brackets install on most roof rack crossbars.


The RockyMounts Tomahawk bike-rack is a high quality aluminum frame, which will last years to come. And it's universal fit makes it easy to mount on any roof rack! My bike has big Bontrager tires which fit pretty well on the carrier. It took 15 minutes to assemble, but the instructions were not very clear. A [online] video was better help! I haven't used it on a trip yet, but so far so good!

It has been a year since owning the TomaHawk Bike Rack & I couldnt be happier! No problems so far & I have taken it on at least 20 trips across ontario. Very good quality & has not put a single scratch on my bike... 5 stars!!
Ricar - 05/09/2022


Very nice roof bike rack carrier. Went on 600ml round trip to the mountains with my fat tire bike. No issues at all. Very stable and secured.


This is my first Rockymount product, and they have won me over. This was well-designed and secures bicycles very well, despite the broad selection of wheel accomodations. In the future, I will not even look at the other two major bike rack makers. I really like how it requires common bicycle tools to disassemble, which makes me think it is more secure than all the other racks I own that have wingnuts everywhere.

No issues. Great product. Great dealer.
Super Z - 10/21/2021


Great product. Worked as advertised . Used to be able to take 4 wheeler and bike. etrailer did a great job helping me find an item that would work for my application 10 out of 10 on etrailer. Thanks Vanessa

One question how do I get the locks for rack?
-- comment by: James - 10/24/2019


Good sturdy unit. Bought two. Held my 29er and road bike great for a 4-hour haul. Easy to install and put together. Don't even know it's on the roof since it makes no noticeable noise at any speed.
(Hint) I bought a collapsible step stool in case I needed help from a shorter person to put the bike up on the roof. So far no help needed since the "v" helps keep the bike in place as the straps are buckled.
Installed on a 2018 Kia Sorento.


Super easy install, I was a bit doubtful of being able to fit clamping arm around my front tire due to my rack, but was able to do it no problem. The rack is steady, both on car and bike holding ability. I would recommend for anyone!


This rack is great. I've traveled about 2,500 miles with the bike loaded up and it has been rock solid. Well designed. I bring a little folding step ladder with me that I use to load/unload the bike. When I'm not using the rack, it lays down nicely and you never even know it's up there. Highly recommended product.


This rack is great. Easy to install; bike mounts easily; sturdy. I'm happy with it.


PROS: easy to install, easy to use, keeps bike secure on top of vehicle, good price
CONS: does not have a lock, getting your bike on and off the top of your vehicle is NOT easy (not a product issue, but something to consider when choosing a top rack or hitch.. I need to carry as many bikes as possible so I have to use the roof, too! all the light weight racing bikes go on top for sure!)

after a year, the product still works as when new.. no issues.
Elizabeth S - 10/05/2020


Nice carrier, easy to assemble and install, works with fat tire bike without having to purchase extra parts


Fast delivery, easy to install, easy to use with bike also! Money well spent!


Exactly what I needed for transporting my Fat Bike, thought I would need to install a hitch mount and buy a new bike carrier but after seeing the product in use vía etrailer’s on line video I was ready to take a chance and glad I did, works great on my Thule roof rack cross bars, allowing for secure transport. An additional plus was the quick delivery and the great customer service - thank you!


Pros: functions well, easy to use, holds a fat bike, great value.
Cons: I had to loosen the pressure on the arm, it was a bit too hard to move. The rack is noisy in a couple of ways. The "offset" rear mount allows the rack to flex sideways an it rattles against the cross bar, I stuffed some strips from an old tube underneath to quiet it. The handle is somewhat loose on the upright bar, so it allows some rocking when loaded, which causes clunking.
Double straps for fat tires is a little fussy, but it works and is simple. This in minor, but the rack sticks out way far in front of the forward crossbar, it almost looks like it's on backwards.


easy to install. holds bike steady and tight to the frame. looks well built and perfect for my bicycles.


Good rack with solid hold for mountain and road bikes. Haven't tried with fat bikes yet. Locking operation is quick. Mounting and dismounting takes more time than I'd like, but for the price the Tomahawk is hard to beat.


The Rockymount bike rack is a great bike rack and I am very happy with Etrailers service, delivery and communication. I would definitely shop with etrailer again.


This was just what I needed.
of all this bike rack is not mounted on an auto roof rack. I have a motor home and us a swivel wheel trailer to carry a motorcycle; the platform is 5 ft long and 8 ft wide I needed some way to also carry a Mongoose fat bike, the method of carry had to be stable, so as not to crash in to the motorcycle and secure so as not to be stolen, but easy for me to use the bike any time I wanted to. This bike rack filled the bill just right. It is strong, holds the fat bike perfectly and secure from theft, and I can get the bike off and on with little effort. The lock cores work great and are worth the extra cash.
Love this thing and recommend it to anyone.
Sorry but I have no way to add pictures.


The Tomahawk racks are well made and easy to assemble and use. Used two of the racks as basis for a truck bed bike carrier. Mimicked a roof rack mount in the bed of the truck using conduit and metal angle brace. System is sturdy and easily slid into and out of the truck bed. Folds flat and can be hung on garage wall for storage.


Perfect, everything I thought it would be.


I have enjoyed using the rack to transport my bike to different locations to ride and to have maintenance completed. I also recently used the rack to pick up a new bike for my husband from a sporting goods store. I like that I do not have to remove the wheels from the bike when transporting. I have the bike rack of my Scion FRS. It is a good quality rack.


Good product, arm was to tight the to move. had the bike to fall onto car! I was able to loss the clamp and now works good!


Well constructed, super easy to mount, and holds my fatty like she deserves to be.

The rack still works great. I use it several times a week and it is holding up very well. Functioning like new. Very satisfied. I use it for both my fat bike and my 29” full suspension trail bike with 2.35” tires. All I have to do to convert is addremove the strap extensions.
Andy C - 10/01/2018


Rack is awesome built good way better then the thule ones i bought


At my door in a matter of days and installed and mounted in less than 30 minutes. GREAT SERVICE AND GREAT PRODUCTS!


No complaints. 3000 miles without problems. Great rack for the price.

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