20 tricked-out bicycles

The sun has returned! Here's a look at 20 of the coolest -- if not weirdest -- takes on the ultimate outdoor vehicle, the bike.

First up: A bike that's a work of art, and vice versa.

This Schwinn was decked out by artist Miki Yokoyama for a fundraiser to benefit the Los Angeles Ronald McDonald House.

This kinda-cute, kinda-terrifying ride swooped into action at Las Vegas' Electric Daisy Carnival music festival in 2013.

This presumably bouncy ride was spotted in action at a bicycle carnival in the Eastern European nation of Belarus.

This accessorized bike rolled through the International Exhibition of Inventions of Geneva in 2014. Its rider, Rene Wuttig, invented the "foldable protection."

This futuristic work of fiberglass is actually way retro: The cool-looking model in the picture was produced in 1960. You can find it on display at the Bicycle Museum of America in New Bremen, Ohio.

CNET called this chainless e-bike a "humble" machine with a "daring design" It hides all its major parts and wiring within its metal body and a human-machine interface tracks the bike's vital signs and renders it unusable when detached. Sorry, pesky thieves.

While we suspect a carb-loaded frame doesn't provide optimal aerodynamics, we applaud this bicycle's ability to provide a hearty on-the-go snack.

This sleek machine is currently produced for the Chinese market. Part mountain bike, part phone, it boasts an Android touchscreen, a quad-core processor and laser pointers.

The car-tire thing is a popular one for folks who trick out bikes. This project was done, according to its builder, with the frame of a Murray Monterey.

You've gotta have at least one tricked-out tall bike in a tribute to tricked-out bikes, right? Right. This one was captured tooling down Wilshire Boulevard at one of Los Angeles' CicLAvia events in 2016.

This super-fast cargo bike from Denmark's Larry vs. Harry was spotted doing its thing -- and looking good -- in downtown Tokyo.

No one said tricked-out bicycles had to be practical, including the guys who rode this circuitous number at a Moscow festival in 2013.

AtomicZombie is the brainchild of two bike-building enthusiasts from Ontario, Canada. The online company sells instructions on how to make your own tricked-out bicycle, like this one that's fit for a web slinger.

This vision in purple is the creation of Bicycle Makeover, a New York customizing shop specializing in vinyl wraps that transform your bike but -- and this is no small thing -- also maintain your factory warranty.

This precious piece made its eye-catching debut at the 2010 Luxury & Yachts Expo in Verona, Italy.

The carbon-fiber-molded beauty from Trek promises touch-activated controls and integrated smart display. It currently only exists as a prototype, but you can drool at its sleek lines now.

This sweet-looking custom bike, by Arizona's Ironhorse Custom Bicycles, looks to have been built for a customer with a love of motors -- and Chicago Blackhawks hockey.

Back in the day, the Whizzer was an engine kit that allowed DIY-ers to add kick to their two-wheelers. This one was married to a 1948 Schwinn with 26-inch wheels.

Like all of the bicycles made by Latvia's Materia, the Wudu sports a wooden frame. If you're worried about its ash-walnut combo splitting, take heart: The manufacturer says every bike is tested, "in computer simulations and in a certified laboratory."

The details on this bike of the cowboy-TV era of the 1950s are awesome: Horse head, toy gun and holster, fringe and studded fenders.