Hubless

BlueNav is bringing a more natural spin to its electric marine drive lineup. The all-new Whale Design propeller features blades that follow the contours of a whale to improve system efficiency.

Audacious French company Nawa showed off a concept bike in 2019, claiming its supercapacitor-hybrid battery pack could massively boost power and urban range for electric motorcycles. Now, it seems we'll get a chance to see if the numbers stack up.

This eye-catching ebike offers 750 watts of power, about 500 watt-hours of battery, a long list of neat gadgetry and an impossible-looking pair of hubless wheels you can poke your arm right through. But we'd urge caution when it comes to buying one.

You can now order yourself a Finnish electric motorcycle with lots of torque, lots of range and a very unique look. Oh, and it's also got a jaw-dropping, gaping hole where the middle of the back wheel would normally be.

Finnish electric motorcycle startup RMK has sent us some photos of its completed E2 prototype, as well as performance figures and details on some of the expected features. Notable for its very cool hubless rear wheel drive, the E2 is shaping up to be a fun and sporty machine.

We've just received some new renders of the upcoming RMK E2, a quick electric motorcycle with a range up to 180 miles (300 km), peak power of 67 hp (50 kW), and an attention-grabbing hubless rear wheel. There are a few behind-the-scenes shots too, as the RMK team builds the first prototype.

Impractical? Sure! Vulgar? Most certainly. Unique? In every sense. This staggering custom motorcycle uses the biggest pair of hubless wheels we've ever seen, as well as placing the rider astride a snarling, 300-horsepower Rolls-Royce aircraft engine. Live in fear – of corners, if nothing else.

Finnish manufacturer RMK Vehicles has come forward with plans to build an electric streetbike with an eye-popping centerless rear hub. The Tron-style open rear wheel houses an integrated 67-horsepower electric motor for a top speed around 100mph.

While we've already seen folding bicycles that pack down into a tiny package, such bikes usually have at least one limiting factor – puny wheels that limit speed and road-worthiness. The Sada Bike, however, features full-size 26-inch hubless wheels, yet is about the size of an umbrella when folded.

Whether they're on a motorcycle from Star Trek or a far-out concept bike, hubless wheels are generally one of those futuristic things that we don't encounter much in the real world – yet. Soon, however, you may be able to buy a folding kick scooter equipped with a set.

Three industrial design students from Georgia Tech recently built the Transport, a bicycle that replaces the spokes in the front wheel with a handy storage compartment that remains in place while the tire rotates.

The Freerider Skatecycle supposedly combines the “foot control of snowboarding, the balanced turning of skateboarding, and the nimble, undulating movements of casterboarding.”