5. BMW StreetCarver
The extra poundage actually works to the board's advantage. The undercarriage mated to the wood-and-fiberglass-inlay deck absorbs road shock with a satisfying deep thud sound and the absence of vibration. There's no lip to kick where the board protrudes beyond the trucks at either end. Monster-size 110mm wheels mounted on the cast trucks are almost three times the size of wheels on most boards[Source 1 - 2]
4. Dewey Weber Twin Motor SkateboardAt $559, the "Dewey Weber Twin Motor Skateboard" goes from 0-20mph in just 4-seconds -- powered by "a variable speed high torque, 400 watt electric motor." Fully charged, you'll get an impressive range of approx. 12-15 miles.
The 4 inch wheels are the largest ever made for a skateboard which also provide maximum stability. Cable Connected remote control gun offers reliable, precise, power and braking without interferance[Source 1 - 2]
3. USurfer UM70 Electric SkateboardWith a top speed of 12mph, the USurfer UM70 is ideal getting around town. The frame is solidly constructed from steel/aluminum and complement the Maply ply wooden deck. Powered by two 12v 15AH sealed lead acid batteries, the UM70 is good for 4 hours on a full charge. This strange gadget will set you back a whopping $863. [Source]
2. Freeline SkatesThis is what you get when you cut two pieces off a skateboard and attach wheels to each piece. Introducing Freeline Skates by Ryan Farelly, these things are supposed to be ridden like a snowboard by twisting your body side to side and turning your feet in/out. They're made from 2 independent aluminum skates, traditional skateboard grip-tape, and 72M custom grade polyurathane wheels. Though not technically a skateboard, these Freeline Skates were definitely inspired by them. [Source 1 - 2]
1. Self-Balancing Electric SkateboardCreated by the UBC Electric Bike Club, this self-balancing 2 wheeled electric skateboard was inspired by Dean Kamen's Segway and is driven by "a pair of high current bi-directional DC motor controllers".
The steering control of the board is just like on a regular skate. You tilt the deck side to side. Since the deck is mounted by only 2 rubber bushings, it is able to pivot along this axis by a few degrees. An IR sensor underneath measures this tilt which causes one of the motors to drive faster than the other.