An unorthodox tricycle, Halfbike is practically a pedal-powered Segway. To turn, just lean into the direction you want to go. Its size and weight makes it great for urban commuting. We wish it cost half as much as a bike though.

Chockful of diagrams and explanatory text, Richard Hallett’s visually impressive book provides an in-depth look at not only every detail about how modern bicycles function, but also how they came to be. Informative and beautiful.

An all-terrain bicycle with 4″ wide tires and a 350w motor. Its 36v battery is removable and lets you go up to 20mph for up to 20mi. It also has an aluminum alloy body, 7-speed Shimano gear system and a control panel.

Timbersled’s conversion kits let you transform dirt bikes from off-roaders into self-propelled snow-eaters which can tear up powdery slopes like a snowmobile, and catch some air as you jump over mounds of snow.

Designed by Dennis Siegel, the RFID Bikealarm deters theft by emitting an ear-shattering 120dB alarm if it senses drastic movement. The owner uses a small RFID tag to wirelessly activate and deactivate the alarm.

Combining fitness benefits with the speed of a cart, The Golf Bike is a new way to get around the course. Small diameter wheels make for quick acceleration and minimal course impact, it’s easy to dismount, and carries a full set of clubs.

Norwegian cyclist and daredevil Eskil Ronningsbakken took his bicycle on a ride along a steep, twisty, rainy mountain highway hitting speeds up to 50mph – all while going backwards and seated on the handlebars.

The Cambium series of saddles strays away from Brooks’ leather-lined bicycle seats in exchange for a rubber base with cotton lining. The result is a more comfortable seat that’s also durable and waterproof.

Kelly McGarry earned the silver medal at the 2013 Red Bull Rampage freeriding contest, partly because of his sick backflip over a 72ft. gap. See it in third-person here. Makes you wonder what the guy who won the gold did.

The Greyp G12 is a bicycle with a 12kW electric motor. It can go up to 40mph and last up to 75mi on a single charge. Charging takes just 80min. Uses a fingerprint scanner to start up and artificially limit its top speed. Est. price: $8k.

A bicycle with arm cranks. You can power the Varibike using your arms, your legs or both. It lets you go faster, tackle uphill climbs easier and experience a more intense workout. Also available as an indoor bike.

The Ride: New Custom Motorcycles and Their Builders is a new coffee table book from premiere motorcycle blog Bike EXIF. It looks at the resurgance of bike building and the philosophy behind this new wave of builders.

A bicycle with an automatic transmission. It has onboard sensors, a computer and a gear shifter that detect the terrain and tell the NuVinci N360 drivetrain when to shift gears. A dynamo powers the electronics as you pedal.

The portable Rubbee Drive turns pretty much any bicycle into an electric bike. It’s easy to install and remove and it has a range of up to 15 miles. Its large 20,000 mAh battery can be fully charged in just two hours.

Made of titanium and has a total of 24 tools in a compact package: 9 hex heads, 8 hex bolt wrenches, 2 screwdrivers, a T25 Torx head and 4 spoke keys. You can secure it under your bike seat so it’s always there when you need it.

Designed by Thomas Walde, Postfossil’s shelf is for bicycle enthusiasts. It lets you present your beloved ride as a room centerpiece. The shelf is made of fir and has a steel pin and coconut fiber mats.

It’s simultaneously the greatest and most annoying invention ever made. Eric Buss apparently had nothing better to do with his time, so he created a bicycle that unrolls and pops bubble wrap as it rides.

A single-speed everyday cruiser, Solé’s Micklish bike is made from durable welded steel, with a matte black frame and gold accents. Wheels include Presta valves, and the riveted details on the Cionilli seat are spiffy. More colorways here.

Trick rider Tim Knoll shows how he pulls off his low-to-the-ground limbo maneuver, which allows him to ride underneath semi trailers. As Tim mentions, don’t try this at home – it’s seriously dangerous – but awesome to watch.

While he was in Thailand, MMA fighter Mike Swick saw something straight out of a post-apocalyptic Old Spice commercial. Large buffalo skull with a hexagram on it? Check. Buttloads of rifles? Check. Parrot? Check.

Industrial designer Joey Ruiter conceived this fat-wheeled urban bike with a special holder built in for carrying around a 1/2 gallon growler filled with his favorite beer instead of a water bottle. Hydration is overrated anyhow.

Getting your bike onto a roof rack can be a pain, but pro cyclist Peter Sagan has a method which works like a charm, and doesn’t require lifting the bike over his head to do it. Though we’re not sure it’s good for his car’s paintjob.

Colin Furze is known for making amped-up, but horribly dangerous vehicles. His latest creation? A bicycle with a ridiculous, fire-spewing jet propulsion system. Go figure his biggest problem was the tires.