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[skreminegul07]

Claims it goes 100mph.  I wonder for how long?

http://www.ny1.com/content/ny1_living/technology/103950/custom-built-green-motorcycle-lacks-gas-powered-roar/Default.aspx

[miker]

even those clones should be able to make one run for a while...now having all the bolt on chit fall off is another thing..

[skreminegul07]

I thought Paul senior's comment about it being quiet, that you could always put cards in the wheels was funny.
 

[red ben59]

Sounds like a Goldwing 

[AXIL]

    if its occ its junk.   axil

[smkymtnboy]

100mph before or after sert! just kidding!

[miker]

I hope it has fire suppression and adequate breakers...I wonder if Mikey did the load calcs for it?

[Special_Ed]

At some point someone will offer an electric powered factory bike. They are already racing electrics, They sound strange but with the right setup they are very fast. Interesting science project.

Ed




http://www.youtube.com/watch?v=a2JkMCzjTVE

[miker]

All torque and that is where its at...they just real and need godzilla voltage to real big to big. My 4160 V/300hp motors are hugh. nowadays

[Special_Ed]

All torque and that is where its at...they just real and need godzilla voltage to real big to big. My 4160 V/300hp motors are hugh. nowadays

There is a local company that manufactures small high Hp/Tq electric motors. They have one about the size of a 16" truck tire that puts out 450hp. It's liquid cooled and uses a special 12 phase high frequency drive system. Strange seeing such a small motor with a 2-1/2" dia. output shaft. They're used on drill heads and Naval propulsion systems.
 
PA44-5W-002 Permanent Magnet Brushless Motor

Rugged, reliable and powerful, DRS’s Permanent Magnet Brushless Motors are built to last under the most demanding conditions.

The PA44 Motor delivers more horsepower per pound than other electric machines, and it works just as well as a generator, delivering reliable power over a broad range of speeds.

A Powerful Package

Combine the rugged construction of the DRS PA44 Motor with its companion drive, the MD500, and you have enough control over power and torque to make granite shudder. The compact, water-cooled MD500 drive is designed specifically to deliver peak performance from the PA44 motor. Together, the PA44 and MD500 are the perfect choice for demanding jobs where light weight, high efficiency and precise control are essential.

Performance

Rated power: 336 kW (450 HP)
Rated speed: 2860 rpm
Torque at rated speed: 1120 Nm (826 lbft)
Phase current at rated speed x power: 235 A RMS (6 step, series connection)
Efficiency @ rated speed: 95%
Peak torque (0 to 100 rpm): 2000 Nm (1475 lbft)
Phase current @ peak torqu: 425 A RMS (6 step, series connection)
Maximum speed: 3600 rpm
Power @ maximum speed: 255 kW (342 HP)
Torque @ maximum speed: 678Nm (500 lbft)
Phase inductance: 120 µH (series connection)
Phase resistance: 48 mohm (series connection)
Voltage constant: 0.24 V/rpm (240 volt amplitude @1000 rpm, series connection)
Rated voltage: 700 volt peak (series connection)
Pole pairs: 14
Fundamental frequency: 667 Hz @ 2860 rpm
Moment of inertia: 0.9 Kg m2

Mechanical

Diameter: 25.5 inches (648mm)
Length: 8.8 inches (224 mm)
Standard shaft type: DIN 5480 Spline (W60 x 2 x 30 x 28 x 9g)
Mounting: 24.6” (625 mm) bolt circle
Weight: 395 lbs. (195 kg)
Motor power source: 500 HP PWM Inverter, DRS-EPT MD500 or equiv.

Environmental

Cooling: Liquid (water/glycol)
Maximum cooling inlet temperature: 49oC
Coolant flow rate 7 gpm, 26.6 lpm (3.5 gpm per stator)
Maximum allowable motor stator temperature: 150oC
Operating ambient temperature range: -40 to +60oC
Motor bearing design life @ rated power: 10,000 hours
Shaft position sensing: Integral resolver, 5 Vrms, 2500 Hz
Rotor temperature sensing (optional): Infrared non-contact probe
Stator temperature sensing: Thermistor, two in each stator

[miker]

Whaddya think the sticker is on that little blender motor???

[PR3VS56]

Great looking bike -- I'll bet it's fun to ride. 

[skreminegul07]

You would have to have a CD Player and speakers to make the potato potao sound or it would be too hazardous to blind people.  I don't make this stuff up.  It was noted in the news that this is a problem with electric cars.

Or put baseball cards in the spokes.  We used to use water ballons too, but they lasted as long as a D408F.

[Dan_Lockwood]

At some point someone will offer an electric powered factory bike. They are already racing electrics, They sound strange but with the right setup they are very fast. Interesting science project.

Ed




http://www.youtube.com/watch?v=a2JkMCzjTVE

Bill Dube is the owner of the Killacycle, or what's left of it after he's doing a burnout in front of a convention on electronics.

Take a look at this clip.

http://www.youtube.com/watch?v=1pM1j2d1RMU

[reo]

Bill Dube is the owner of the Killacycle, or what's left of it after he's doing a burnout in front of a convention on electronics.

Take a look at this clip.

http://www.youtube.com/watch?v=1pM1j2d1RMU

Thanks for sharing this link, amazing someone so smart can be so stupid. The bike sounds and looks impressive.

I just can't imagine riding an electric bike. My biggest concern hinges on when I bought my wife an 06 deluxe and she insisted on leaving the stock exhaust on the bike. I would ride the bike putting miles on to get it broke in and I just couldn't believe how many people would cut me off or pull in front of me. I am sure it's because of the lack of sound the bike made due to the stock exhaust. I have been riding bikes for years and most had modified exhaust so its been a long time since riding with something so quiet and I couldn't believe how it changed my riding habits. I would think it would be much worse with an electric bike. I guess they will bury me with my seeg and sefb....Roy