7tronics Helia left side
OwnerMark Smith
Owner's Other EVs2021 CycleBoard Elite Pro
2012 Organic Transit Naked ELF 2FR
2019 Segway-Ninebot GoKart
2007 Optibike 600
2012 HCF 301 Scooter
2018 GoMonster HoverKart
2018 Hoverseat XL Kit
LocationHillsborough, North Carolina United States map
Web/EmailWebPage email image
Vehicle2014 Optibike Helia
This series of Optibike ebikes included a more
ergonomic seat than most e-bikes along with
ergonomic bar grips. The monocoque frame has
custom patterns painted as requested by the
person who ordered this ebike. Otherwise the
Helia is similar to the R8 series.
MotorOptibike Brushless DC
The electric drive train is a custom 750w geared
DC mid-drive motor. The updated motor in this
Helia uses ceramic and delrin gears and is MUCH
quieter than the prior generation.
DrivetrainHuman power is delivered from the bike crank
through a chain drive to a 14 speed Rohloff
SpeedHub. The electric motor uses an
integrated freewheel in the bottom bracket to
merge torque from the attached pedal arms with
the bottom bracket motor.
Custom controller with charge controller
Batteries37.00 Volt, Lithium-Ion
Custom internal frame 29Ah battery pack.
Optional external frame mount 37V/14Ah battery
pack was available until ~2014. We have one
external pack that still holds over 75% of
original rated Ah capacity.
System Voltage37 Volts
ChargerHigh Power 37V 3A
InstrumentationCustom battery state of charge and operating
controls are included with dual-LED lights
mounted on the handlebar.
Top Speed31 MPH (49 KPH)
In 14th gear heavily pedalling, full throttle,
slight downhill to a radar speed sign.
Range50 Miles (80 Kilometers)
This is another Light EV we have never taken
more than 25 mi from home base. With the range
extending battery pack, we estimate we could go
80 mi on rolling terrain.
Watt Hours/Mile14 Wh/Mile
Seating Capacity1
Curb Weight56 Pounds (25 Kilograms)
Without the spare battery pack or any rack, this
ebike is right at 56lb. With the range extending
battery pack the weight jumps to 78lb.
TiresScwhalbe Evolution DD Marathon Mondail
26"x2.15" Double Defense touring tires.

This is a full suspension "trail ebicycle"
with air filled Fox shock pair in the front
and one frame mounted Fox air shock for the
Conversion TimeTwo months.
Conversion Cost~$5k
Additional FeaturesOptional: an extended range external battery pack was available in
2014. We obtained a refreshed external pack and it increased the
range by ~2/3. The external pack replaces the rear fender on this or
our 2007 Optibike 600.
This was purchased from the manufacturer, Optibikes LLC, as a
completely refurbished ebike in April 2020 on the recommendation of a
female member of our group as one of the few ebikes on the market
designed with feedback from women. Legend: before refurbishing it was
ridden on set of a well known streamed "TV" show by an unnamed

A Triad EV Association (TEVAnc.org) member Light EV (LEV).

code by jerry