Setting up your bike with a dirty bird air ride kit is probably the quickest way to turn heads at any bike show or local hangout. There is just something incredibly satisfying about pulling into a parking lot, hitting a switch, and watching your heavy bagger sink right down until the frame is practically kissing the pavement. It's a vibe that you just can't get with traditional coil shocks, and if you're running a custom Harley, it's almost a mandatory rite of passage.
John Shope and the crew over at Dirty Bird Concepts have been in the game for a long time. They've basically helped define what the modern custom bagger looks like. When you talk about the dirty bird air ride, you aren't just talking about a couple of shocks and some plastic tubing; you're talking about a system designed by guys who actually ride these heavy machines and know where they tend to fail.
Why Air Ride is the Go-To for Baggers
Let's be real for a second—riding a stock Harley is fine, but it's a bit "standard." If you've put money into custom paint, big wheels, and stretched bags, leaving that massive gap between the tire and the fender is a crime. An air ride system fixes that aesthetic issue instantly. But it's not just about looking cool while you're grabbed a coffee.
The biggest advantage is the adjustability. If you're riding solo, you can set the pressure exactly where you like it for a soft, pillowy ride. If you throw a passenger on the back and load up your saddlebags for a weekend trip, you just bump the pressure up a bit. You don't have to break out a spanner wrench and struggle with manual preload adjustments. You just flip a switch, and the bike handles the extra weight like it's nothing.
For shorter riders, a dirty bird air ride setup is a total game changer. Being able to drop the bike at a stoplight means you can get both feet firmly on the ground, which is a huge confidence booster when you're trying to balance an 800-pound motorcycle on a slick patch of asphalt.
Breaking Down the Dirty Bird Kit
What actually comes in the box? Usually, you're looking at a pair of high-quality air shocks, a compressor, all the necessary air lines, and the switches to control the whole mess. Dirty Bird usually sources components that can handle the grit and grime of the road.
The shocks are the stars of the show. They're designed to give you a decent amount of travel—usually around 5 inches or so—which means you can go from a slammed "parked" position to a high-clearance "canyon carving" position in a few seconds. The compressor is small enough to tuck away inside a fairing or a side cover, so you don't have some ugly hunk of metal hanging off your frame.
One thing people love about this specific setup is the fast-up capability. Some cheap air kits take forever to lift the bike. You're sitting there, thumb on the switch, waiting and waiting while the compressor hums. With a well-tuned dirty bird air ride setup, the response is much snappier. You're up and ready to roll before your buddies have even kicked their stands up.
The Installation Process
I won't lie to you—if you've never touched a wrench, you might want to have a pro handle this. But if you're a garage tinkerer, it's a fun Saturday project. The hardest part usually isn't the shocks themselves; it's the plumbing and the wiring.
You have to find a good spot for the compressor where it won't get heat-soaked by the engine but stays dry. Then you've got to route the air lines. This is where most people mess up. If you leave too much slack, the line might rub against a moving part or get melted by the exhaust. If it's too tight, it might kink when the swingarm moves. You want to take your time here, using plenty of zip ties and checking for clearance at every stage of the suspension's travel.
Wiring is pretty straightforward. You're basically just running power to the compressor through a relay and a switch. Most people mount the toggle switch on the handlebar or the dash. It's a great feeling when you finally hook it up to the battery, flip that switch for the first time, and hear that hiss as the bike starts to climb.
How Does It Actually Ride?
This is the question everyone asks: "Does it feel like I'm riding on a bouncy castle?" If you set it up right, the answer is no.
A lot of the "pogo stick" reputation that air rides have comes from cheap kits with no internal damping. The dirty bird air ride systems are designed to actually behave like suspension. When you have the right amount of air in the bags, it soaks up the small chatter and expansion joints on the highway better than most stock setups.
That said, it is a different feeling. It's a bit more "floaty" than a rigid performance shock like an Ohlins or a Legend. If you're trying to drag knees on a track, you probably shouldn't be on a bagger anyway, but for cruising the interstate or rolling through town, the comfort is hard to beat. The key is finding your "sweet spot" pressure. Once you know exactly where the bike feels best, you can just glance at your air gauge (if you installed one) and hit that mark every time you ride.
Dealing with the Low Life
There are a few things you have to get used to when you're running a slammed bike. First off, you can't just park it and walk away without thinking. If you drop the air all the way out, you need to make sure your kickstand is still going to work. Some guys have to buy a "1-inch under" kickstand so the bike doesn't sit too upright when it's slammed.
Also, you have to be mindful of your rear fender. If you're running a really tight clearance and you hit a massive pothole while the air pressure is low, there's a chance the tire could rub. It's all about balance. Most of us ride with the bike at a "standard" height and only drop it down when we're low-speed cruising or parked.
The "cool factor" of the dirty bird air ride really shines when you're at a red light. Dropping the bike an inch or two just to look mean, then airing it back up when the light turns green, never gets old. It's pure theater, and let's be honest, that's half the reason we buy these bikes.
Maintenance and Long-Term Reliability
Anything that uses air pressure is eventually going to want to leak. It's just physics. However, these modern kits are pretty robust. The main thing is to check your fittings every once in a while. If you notice the bike is sitting lower in the morning than it was when you put it away at night, you probably have a tiny leak in a push-to-connect fitting or a pinhole in a line.
A little soapy water in a spray bottle is your best friend here. Spray it on the connections, look for bubbles, and fix the leak. It's usually a five-minute fix. Also, make sure your compressor isn't getting caked in mud or road salt. Keeping the intake filter clean will make that little motor last a lot longer.
The dirty bird air ride shocks themselves are built to take a beating. They're sealed units, so you don't really have to worry about the internal valving unless you've put serious, serious miles on them. Compared to the old-school air shocks that used to come on Electra Glides—the ones that leaked oil and felt like wet noodles—these modern systems are lightyears ahead.
Is It Worth the Investment?
Look, a custom air ride system isn't the cheapest mod you can do. You can find "budget" kits on eBay for a few hundred bucks, but I wouldn't trust my life or my $30,000 bike to them. When you go with a name like Dirty Bird, you're paying for the research and development that went into making sure the kit doesn't fail when you're doing 80 mph on the freeway.
If you care about the stance of your bike and you want the convenience of adjustable suspension on the fly, then yes, it's absolutely worth it. It changes the silhouette of the motorcycle and adds a level of versatility that static shocks just can't match.
At the end of the day, riding a bagger is about style and comfort. The dirty bird air ride gives you both in spades. It's one of those upgrades where, once you have it, you'll wonder how you ever put up with a static rear end. So, if you're ready to stop looking like every other bike on the road and start slamming that frame, it's time to pull the trigger and get aired up.