The electric bike itself is nothing new, and either is this design's completely carbon frame. Even hubless wheels aren't unheard of, but on this design that's exactly what's piquing my interest even though they're normally inefficient! Here, the hubless aesthetic is made possible by an electric assist motor located inside the rear wheel frame itself.

For a class project, nine mechanical engineering students at Yale devised a working bicycle with a hubless wheel. It's suspension-free and they only had the time and resources to go hubless on one wheel, but it works:Why do it? As one of the students explains, First, it looks cool. Second,...

Working hubless rims in 1/25th scale by Vic Dimichi

Jose Hurtado's Twist Bike Concept is Uniquely Reversible

1989 Sbarro Orbital Wheel or Hubless wheel

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.

Whenever a motorbike concept comes along, one always hopes it brings to the fore something more than the conventional - pushing the boundaries of design while k

This electric motorcycle from Finland’s RMK sports an aggressive and futuristic look, along with an impressive in-wheel motor design.

We are zooming right along this week! With record numbers of engineers signing up we have a whole assortment of new user submitting fabulous models and taking part in our Challenges. Be sure to check them out and have a go! This week's models cover everything from cars to creatures. Hit it! Our first model, comes from new user Aykut Dana. It's a shapely version of a Trike Motorcycle (SolidWorks 2011) complete with tires, engine and laid back handlebars. This is one sweet ride! You may have…