Performance

SBU (Self Balancing Unicycle) Performance

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Acceleration & Torque

Instant Freedom
The first time you ride the SBU, prepare to be surprised. You’re at about 10 mph in seconds without even thinking about it. There is no clutch pedal to contend with and no race-car driving techniques to perform. Just lean forward a little and you’re off, without any sluggishness, the SBU will try very hard to always stay upright under the rider. Lean forward, the SBU drives forward, lean backward, the SBU will stop and head in reverse.

How powerful is the acceleration?
A quick story to illustrate. A favorite trick here at Focus Designs is to invite a passenger along and ask him to turn on the radio. At the precise moment the person realizes there is no radio and no room for a passenger, we accelerate and ride off without him. Our passenger simply can’t even believe what just happened, actually happened. But who needs music when you’re experiencing such a symphony of motion. Rest assured that this responsiveness works at all speeds, as noticeable when you’re inching your way through parking lots to when flying along at 10mph.

100% Torque, 100% of the Time
The SBU delivers full availability of performance every moment you are riding, even while at a stoplight. Its peak torque begins at 0 rpm and stays powerful at over 3,000 rpm. This is the precise opposite of what you experience with a gasoline engine, which has very little torque at a low rpm and only reaches peak torque in a narrow rpm range. This forces you to make frequent gear changes to maintain optimal torque. With the SBU, you get great acceleration and the highest energy efficiency at the same time. All while requiring no special riding skills to enjoy it.

Electric Power

Drive Quickly, Tread Lightly
Most unicycles operate under the assumption that riding is merely a necessary evil if you need to get someplace at the circus. The result has been unicycles that are designed, built, and marketed in ways that refuse to glorify this truly unique transportation, and simply wear out the rider with all the stinking pedaling. We respectfully disagree. We believe riding the SBU is exhilarating. Just watch any child on a go-cart or Segway (if you’re a rich child) and the joy is plain to see. And when you can soar along at top speed, knowing the only oil in the unicycle is on the chain, the only emissions are from the rider, the experience becomes more enjoyable still.

The Ultimate Multi-Fuel Vehicle
Electric unicycles equal freedom. Not simply from oil reliance, but from dependence on any specific power source. Electric power can be generated from natural gas, coal, solar, wind, hydro, and nuclear sources — or a combination of all of them — without changing the design of the unicycle. No matter how or when the world changes, the SBU adapts, making it immune from obsolescence. We foresee a day when all electric self balancing unicycles run on electric power and when people will struggle to remember a time when a love of riding came with a side order of guilt.

No More Trade-offs
Up until now, if you wanted a unicycle with amazing gas mileage, you’d pick something like a manual drive or pedaled unicycle; but when you pressed down on those pedals to zip up a freeway on-ramp, you’d likely be a little disappointed and completely worn out — it would probably take over 10 seconds to reach 10 or so miles per hour. On the other hand, if you demanded the 0 to 10 mph of a $7,500 Segway, you’d wind up with a whole lot of fun but the embarrassment of people laughing and pointing at you… Which you totally don’t get on an SBU, the electric self balancing unicycle – get one today.

Performance Specifications

  • Style: 1-seat, open-top, single-wheel-drive electric self balancing unicycle.
  • Drivetrain: Direct drive, single speed fixed gear with electronic motor control.
  • Motor: Permanent magnet electric DC motor with variable drive.
  • Chassis: Chromoly steel frame, precision bearings, on an alloy 48-spoke wheel.
  • Brakes: Electronically operated direct drive motor to wheel control with regenerative braking.
  • Acceleration: 0 to 10 mph in 1 second
  • Speed: About 10 mph (depending on the rider’s weight)
  • Range: About 10 miles (depending on the terrain)
  • Battery Life: Over 1000 cycles.
  • Battery: Custom high quality LiFePO4 lithium-ion phosphate 36 volt battery.
  • Full Charge Time: About 2 hours.

Technical Specifications

  • Motor: Permanent magnet electric DC motor.
  • Max rotational speed of motor: 3,514 rpm
  • Efficiency: 82.7% average, 79.6% at peak power
  • Transmission: Direct drive, single speed fixed gear with electronic motor control.
  • Reverse: Reverse direction of motor, no speed limit.
  • Suspension: Your body.
  • Seat: Imitation leather, adjustable height.
  • Brakes: Regenerative braking via the motor.
  • Wheel: Heavy duty alloy, 48-spoke. Size: 20″x1.75
  • Tire: Nylon knobby tread. Min. 40 psi – Max 65 psi. Size: 20×2.125
  • Dimensions:
  • Overall length (in. / mm) 20.0 / 508.0
  • Overall width – pedals folded: (in. / mm) 13.5 / 342.9
  • Overall width – pedals ready to ride: (in. / mm) 17.0 / 431.8
  • Overall height: (in. / mm) 34.5 / 876.3
  • Curb weight (lbs/kgs) 25.00 /11.34
  • Leg Room (in./mm) unlimited / unlimited
  • Front Head Room (in./mm) unlimited / unlimited
  • Front Shoulder Room (in./mm) unlimited / unlimited

Standard features

  • Retractable cup holder (otherwise known as your hand).
  • Heated sport seat (after sitting on the seat it will become the same temperature as your bottom).
  • Stereo sound system with the optional iPod or equivalent music device (sold separately, not available at Focus Designs we recommend apple.com).
  • Homelink universal transmitter to operate compatible garage, gate, and home lighting/home security systems (sold at most hardware stores, clip it to your belt).
  • Double-insulated black soft top (otherwise known as your jacket, sold separately at most clothing stores).
  • Battery charging connector with over temperature safety feature.
  • Keyed ignition.
  • Safety disable switch with 50″ lanyard to connect to the riders clothing.
  • Bluetooth cellular phone integration – if you purchase a bluetooth headset for your phone (sold separately).
  • Metallic premium paint.
  • 1 year warranty.