- Carries 1 bike, up to 45 lbs on RockyMounts®, Thule®, or Yakima® bars, 35 lbs on factory crossbars
- No front wheel removal
- No contact with frame, secures bicycle by front wheel
- Carries road tires up to 3.0” wide mountain bike tires, and diameters from 20” to 29”. Can fit up to 5” with additional fattie kit
- Compatible with bicycles’ wheelbases from 34” and 48”
- Crossbar Spread: Minimum 24" (61cm) Maximum 43" (110cm)
- Form-fitting stainless steel mounting straps that fits all square, round, factory & aero crossbars
- Ergonomic brass knuckles shaped handle
- Not for use with bicycles with front fenders
- Black Only (Red, Silver, White no longer available)
- Lock cores sold separately
31 Reviews Hide Reviews Show Reviews
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Awesome rack
Great experience. Easy to install and use. Best bike rack I have used. Thank you.
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Not bad
I like the rack, I just purchased my second one. Reason I'm not impressed, is the second rack does not have the clips for the ratchet strap to attach to. Now when loading or attempting to unload the straps get stuck in your spokes. A couple times its almost broke.
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Great Solid Rack!
Holds everything from a 29er Enduro to a skinny light carbon bikes. Fenders, fat tires or whatevs, it perfectly adjustable. Super simple to mount on my Thule bars and it could fit really on any crossbar. Literally two screws to turn to install. Also, the grabber is swappable left or right. An affordable easy to use investment for any bike.
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Brass knuckles beats the rest
This is my second brass knuckles. It’s awesome to have wheels on roof racks. A word to the wise, it’s good for tall folks. You must be able to lift your bike overhead to load it onto the roof. The rack is solid. It’s awesome that it is so versatile. Love the clever locking mechanism. Best roof rack I know about. And it turns all my friends heads. They all laugh and say “it’s like brass knuckles” and I say “it is brass knuckles”
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Great product
Excellent service, best price on the Internet
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Love it
I love this rack. The frame is very heavy duty and I love how easy the load hook is to use. This rack fit perfectly on my Golf Sportwagen and the red looks sweet too!
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Brass Knuckles
Meh...This is the spendiest bike rack of the RM lineup, and it's not the best. It's big, heavy and clunky, taking up a huge amount of roof space when folded flat. In fact, it was too large for my station wagon, and we installed it on my wife's huge truck. What I'm least pleased with is that the plastic cover that covers the hardware pops off every time I use the rack. As one pulls the wheel guide from storage position to the wheel guide position, the plastic cover pops off every time because of poor design or poor manfacturing tolerances. I love RM racks, but I'd avoid this one.
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Solid carrier - First few rides review.
Glad I decided to give these a try. Using 2 - one plus size 29'er and one 2.3 29'er - no fitment issues at all although the plus 29'er doesn't have a 8th inch to spare when pulling the tire bar up after loading. Fat tire accessories not needed for 3.0" - seems like I could even squeeze a little bit wider tire in there. I'll attempt a 3.75 this winter. I'm interested to see how these hold up in the winter. My trailer mount rack by another manufacturer became so corroded after ONE season, I could no longer click lock one arm in place or use the locks. Granted this was on the back on the car where all the grime and salt end up. I expect these will fare much better on top of the roof. The warranty on these gives me piece of mind regardless. Only issue so far... the "Rocky Mounts" badging / stickers are already peeling off, all 4 of them. : / I'm not a marketing professional but that seems like something RM would want as tough as the rest of this mount. Otherwise, these things are built like a tank. Low profile when in the travel position - not too noisy, very happy.
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So far so good.
So far so good. I just purchased a red Brass Knuckles rack and it looks great on my blue Acura TSX. Installation is super easy and mounting my bike is an easy 3 step process. My previous rack caused me about a 10% mpg hit so I'm kinda expecting the same here, maybe a little more due to the slightly more bulky design. My only negative will be the weight. My previous rack was under 10lbs, the Brss Knuckles is north of 15lbs easily. I'm sure I'll get over it though as the Brass Knuckles has a much more sturdy and robust feel to it than my previous rack.