Nothing captures the romance of early motorcycling quite like a vintage sidecar rig. There’s a certain magic to the pre-war and post-war setups—images of Harley-Davidson Panheads and Indian Chiefs rolling down a dusty road, with elegant, streamlined sidecars attached. It evokes a golden age of two-wheeled adventure.
Sadly, modern sidecars often lack that style. While practical, they tend to conjure up images of plastic commuter bikes with massive, boxy tubs tacked onto the side, usually piloted by someone collecting their pension. It's an image that's less "classic cool" and more "comfort and stability."
But when the world’s best custom builders get their hands on a sidecar, the results can be truly spectacular. They transform the clunky addition into an integral, beautifully designed part of a cohesive motorcycle system. Forget the geriatric commuters; these six customs prove that the humble sidecar is a blank canvas for outrageous creativity and top-tier fabrication. Here are six unforgettable custom sidecar motorcycles from Bike EXIF over the years.
Harley-Davidson Model U ‘Union’ from Abnormal Cycles
This is one of the more unusual motorcycles that appeared in the AMD Championship. Unusual because it’s perfectly rideable, and also because it was the first time a Harley-Davidson sidecar has competed in Sturgis. ‘Union’ was built by Abnormal Cycles of Italy.
The Bernareggio-based company created an Art Deco-inspired sidecar, complete with beautiful wood trim, and hooked it up to a 1942 Harley-Davidson Model U. The classic-looking leaf-spring fork is inspired by an Indian design but beefed up to cope with the extra weight. Kustom Tech built the three chrome-and-brass drum brakes and the wheels are JoNich 18” shod in CEAT tires.
There’s something reminiscent of Flash Gordon about this machine: like the movie, it somehow hangs together when logic says it shouldn't. The overall execution is stunning, turning an already historically significant motorcycle into a rolling sculpture. [MORE]
Honda Monkey 125 from K-Speed
K-Speed may be best known for its outrageous custom minibikes, and this sassy Honda Monkey sidecar rig is a prime example. While K-Speed is quick to clarify that they didn't fabricate the sidecar itself, they certainly worked their magic on the 2023 Honda Monkey, treating the sidecar to a host of custom details to match the bike.
With K-Speed's 'Monkey Bomber' build as a blueprint, the team made refinements for a more practical vibe. They installed a custom-made swingarm and used forks and rear shocks from K-Speed’s own Diabolus collection, fitted to clamps with a more reasonable steering angle for sidecar duty. The OEM 12” wheels were retained but shod with knobbly tires and bespoke wheel covers to add visual heft.
A new subframe supports a café racer-esque saddle, and the stock fenders were ditched for a raw, bobber-like aesthetic. Other additions include mini-apes, bar-end mirrors, a custom high-mounted exhaust, and a simple, effective gloss black paint job with brown trim.
The sidecar itself is charming, almost bigger than the bike that drags it around. The rig includes a 12” wheel, a luggage rack, and a side-mounted LED spotlight. K-Speed returned the sidecar to their shop to apply the same tire and wheel cover and re-upholster the interior to match the bike's brown trim. It's fair to question the sanity of anyone relying on a Honda Monkey to haul a sidecar and a passenger—especially when its 125cc motor pushes out no more than 9.2 hp. But if we were rolling around in a rig this stylish, we sure as heck wouldn't be in a rush. [MORE]
BMW R69S with Steib from Cytech
This classy setup was put together by South African BMW experts Cytech, pairing a 1964 BMW R69S with a '50s-model Steib sidecar. Steib was the sidecar of choice for BMW Motorrad in the 50s, but finding an original is difficult. Cytech sourced this one from an estate sale, completely dismantled, rusty, and in desperate need of restoration.
Cytech's restoration of the sidecar would rival many complete motorcycle rebuilds. The shell was stripped, sandblasted, and repaired, and the wheel fender was rebuilt before being painted and rubberized inside. The sidecar's wheel received new spokes and nipples, and every nut and bolt was cadmium-plated. The BMW was also in need of a serious overhaul. Cytech completely rebuilt the engine, gearbox, and original 26mm Bing carbs, and addressed every little detail, like fitting tapered steering head bearings. They installed a rare long-range Hoske tank, a Denfeld bench seat, and a full stainless steel exhaust system.
By default, the sidecar mounts were all placed on the right from the factory. “But for the road rules in South Africa, the sidecar must be mounted on the left,” explains Cytech owner Donovan Muller. Cytech moved the mountings to the opposite side of the bike and finished everything in a timeless BMW livery: black with white pinstriping.
Both the R69S and the Steib are immaculate in their own right, but combined, they’re unbeatable. It's the perfect rig for ambling around on a Sunday afternoon, in ultimate style. [MORE]
Ducati ‘Odioso’ ST4 from Revival Cycles
We can normally recognize a Revival Cycles build immediately. The bikes have top-level craftsmanship, perfect proportions, and tasteful finishes. But this bizarre contraption had us puzzled. Sure, the hand-made bodywork and crafty engineering pointed toward Revival... but what about the three different neon hues, and that weird sidecar? And what possessed the Austin, Texas shop to take a Ducati ST4 and turn it into, well... this? Alcohol, apparently. And a love for the mental sport of sidecarcross.
As the name implies, sidecarcross involves racing motocross with sidecar-equipped bikes. “It's a sanctioned motorcycle racing series based in Europe,” Revival tells us, “and it's popular in Australia and New Zealand, but an almost unheard-of secret in the US.” The idea for the build—dubbed the ‘Odioso’ (Italian for obnoxious)—resurfaced when Rebel Yell asked Revival to build a custom for them. The team selected a 1999 Ducati ST4, an audacious choice given the bike's high-strung nature. With Ducati's legendary 916 cc, 4-valve, DOHC Desmodromic 'L-twin' at its heart, the ST4 is good for 107 hp and 89 Nm of torque.
The ‘Odioso’ is, to our knowledge, the world’s first Ducati sidecar-cross bike ever. Revival built the chromoly steel sidecar frame and 'monkey bars' from scratch, fitting it with its own long-travel swingarm and shock setup. They even moved the radiator, oil-cooler, and battery over to the sidecar to free up space on the bike. The Ducati itself received rebuilt WP Suspension forks from a KTM and a custom-built Öhlins shock mated to an alloy Monster swingarm out back. All three wheels are 17” Warp 9 units wrapped in Metzeler Karoo 3 tires.
The final result weighed in at just over 380 lbs without the sidecar (a massive 140lbs less than stock), proving Revival’s legendary fabrication skills. The vibrant neon pink, green, and blue color palette was chosen to "speak to the fun that this bike was likely to unleash"—and it's a fitting choice for a 107 hp dirt-flinging rig. [MORE]
Honda Grom ‘Project GUS’ from Industrial Moto
We love Honda Groms and sidecars, so this brilliant little rig from Industrial Moto is a double shot of perfection for us. It was built as a present for Nick, the disabled younger brother of motovlogger iamsouless (Chris). After Industrial Moto released their $1,600 bolt-on Project GUS (‘Grom Utility Sidecar’) kit, Chris contacted Tyler Haynes of Industrial Moto to adapt the design for Nick, who has Angelman Syndrome, so he could experience the joy of riding. Tyler agreed to do the build at cost, and a successful GoFundMe campaign covered the expenses in just three days.
Tyler adapted the cargo-carrying cart design to accommodate an auto-racing seat, complete with a five-point harness and custom orange paneling to match Chris's YouTube channel colors. The cart features independent suspension with a shock to cushion Nick’s weight, a safety bar next to the sidecar wheel, and an adjustable grab bar in front of the seat.
The workmanship is impressive. Tyler finished off the Grom with orange-and-black Scott grips and a fresh set of chunky Kenda K761 dual sport tires. The resulting Grom is a testament to the custom community's kindness and the power of a tiny bike to bring immense joy. [MORE]
Royal Enfield Super Meteor 650 ‘Challenger’ from Cherry’s Company
Kaichiroh Kurosu of Tokyo-based Cherry’s Company worked his magic for this Royal Enfield Super Meteor 650. Royal Enfield specified only that the bike needed to retain its cruiser spirit, giving Kurosu-san the freedom to check off a bucket list build: a sidecar rig. Executing it successfully required a radical front-end conversion to reduce trail for easier steering, leading Kaichiroh to nickname this project ‘Challenger.’
Kaichiroh custom-built a major front-end conversion inspired by Earles forks of the 1950s and '60s. The design was used by several major manufacturers for its rugged construction and the ability to adjust the pivot position for a reduction in trail with a sidecar attached. The bespoke fork was matched to KONI shocks.
For the main chassis, Kaichiroh retained the majority of the stock frame but reworked the neck and rear suspension pivot to offset the engine to the left, accommodating a wider rear wheel. The flowing alloy bodywork further sets Challenger apart: the fuel tank is a steel one-off, while the seat pan and headlight nacelle are made of aluminum.
The sidecar itself was a complete scratch-built affair to match the motorcycle’s style and middleweight stature. Kaichiroh melded vintage sidecar designs with influence from the Dutch Klomp (wooden clog) to form the shape, which was laid up in fiberglass. The sidecar is big enough to fit an adult and rides on its own frame and suspension, featuring a 19”, 60-spoke wheel, a leaf spring from a K-truck, and a standard motorcycle shock. Safety and performance were key: the sidecar has its own 8.75” disc brake, and the rear wheel has discs on both sides. The brake system is ingeniously configured so the bike's foot lever controls the sidecar caliper and the brake hidden behind the sprocket, while the right lever controls the disc brake on the right. Kaichiroh Kurosu’s Challenger is a feel-good machine with a totally unique mix of one-off style and practicality, making it a home run for Royal Enfield. [MORE]
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