Huck STINGER 2023 User manual

STINGER
Owners Manual
2023
Electric Motorbikes For Rad Humans
Electric
motor
bike
P U B L I S H E D : J A N U A R Y 2 0 2 3
V E R S I O N 1

A message from our founder
With great power, comes great responsibility.
At Huck, we continually seek advancements in product design and quality and we bring these
ideas and product enhancements to our bikes often. Therefore, this manual contains the most
current product information available at the time of printing.
Because of this, your bike may differ from the information supplied in this owner’s manual. If this
is the case, please check the FAQ section of our website as this is kept up-to-date. No legal
claims can be made on the basis of data in this manual.
If the time comes to sell your Huck, please ensure that this manual stays with the bike; it is, by
law, an important part of the vehicle. If you have any questions concerning the operation or
maintenance of your bike, please contact the Huck Support team or your Huck dealer.
OWNERS MANUAL | 2023. | 03

Congratulations and thank you for purchasing a Huck Electric Motorbike; we are excited to
welcome you to the community of Huck riders.
This manual is designed to provide you with a better understanding of the set-up, operation,
inspection, and basic maintenance requirements of your new ride. Please read this manual
carefully and completely before operating. Do not attempt to operate this electric-motorbike
until you have attained adequate knowledge of its controls and operating features, and until
you have been trained in safe and proper riding techniques.
We hope this guide provides you helpful information in getting to know your bike and the
confidence to maintain your bike like a boss.
We are, and always will be, grateful for your support and ongoing relationship. Without you
there would be no Huck Brand.
You kick ass!
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Part 1: about your Huck motorbike Part 2: Receiving your Bike Part 3: Battery & Charging
Contents
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Part 4: rider safety Part 5: maintenance Part 6: troubleshooting
Part 7: warranty & Legal Part 8: badassadors Part 9: About Huck

about your huck
motorbike
1
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your Huck Motorbike
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Throttle
Headlight
Brake Levers
Light Controls
Horn
Front Brake Caliper
Top Tank Cover
Battery
Electronics Box
Foot pegs
Swing Arm
Rear Shocks
Rear Brake
Signals
Taillight
Seat
Motor & Controller
COMPONENTS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
06
07
04
05
02
03 01
08
09
10
11
12
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16
15
14
17
17

SPECIFICATIONS
Weight
Height (handlebars)
Seat height
Width (handlebars)
Length Wheelbase
Max speed
Drive train
Payload (incl rider)
Rear Suspension
Front Suspension
VEHICLE CLASS
USA: Moped
USA: Motorcycle
Technical Information
165lbs
42" (handlebars)
30-32"
32" (handlebars)
51"
45+ mph
3000w Hub Motor
275lbs (incl rider)
320mm Shocks
700mm Inverted Forks
LICENSE REQUIREMENTS
Dependent on state laws.
Dependent on state laws. Warning: All information in this publication is based on the latest
production information available at the time of approval for
printing. Huck Cycles Corporation reserves the right to make
changes at any time without notice.
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CALIFORNIA PROPOSITION 65
WARNING: Certain motorcycles contain or emit chemicals known
to the State of California to cause cancer and birth defects or other
reproductive harm. In addition, certain fluids contained in vehicles
and certain products of component wear contain or emit chemicals
known to the State of California to cause cancer and birth defects
or other reproductive harm.
CALIFORNIA PERCHLORATE ADVISORY
Warning: Certain components of this motorbike contain lithium
batteries, which may contain perchlorate material.

Throttle
Mode Switches
Park Button
Display
Front Brake Lever
Rear Brake Lever
Left Switch Assembly
Hi/Low beams
Turn Signals
Horn
Sport Burst
Mirrors
COMPONENTS
1.
2.
3.
4.
5.
6.
7.
a.
b.
c.
d.
8.
Handlebar Layout
02
05
04
03
06
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07
08
01
08

YOUR KEYS
Each Huck comes with two keys...these are the only set for your
bike. if you lose them the entire key system must be replaced.
Do not lose them :)
POWERING YOUR HUCK
Insert the key into the key slot on the ignition switch attached to
the display mount. Turn to the right and the system will power
on. Turn left and...you guessed it, the bike turns off. Remove
keys after every ride.
Keys and Alarm
Press the lock icon to lock or set the alarm
Press the unlock icon to unlock or disable the alarm
ALARM (OPTIONAL)
The optional alarm (alarms are only installed if you added them as
an upgrade) works only when the battery is plugged into the bike
and charged. Your key does not need to be on.
With your alarm set, the bike throttle will not work. Should the bike
be moved with the alarm on, a loud siren will blast until the unlock
button is pressed. The throttle and controller are rendered locked if
the alarm is set and the bike is tampered with.
While the alarm is meant to be a deterrent to theft, it will not
prevent it. so we also suggest a chain lock or if possible, locking
your bike inside.
- Remote start on the alarm has been disabled for safety reasons.
USING THE ALARM
1.
2.
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02
01

Throttle
Mode Switches
Mode 1 - 18mph Learn
Mode 2 - 30mph Street Legal
Mode 3 - 45mph+ Off Road Play
YOUR KEYS
1.
2.
a.
b.
c.
Throttle & Modes
Throttle
To accelerate, twist the throttle towards you. There are no gears or clutch, so the throttle
controls all acceleration from start to top speed (excluding gravity). To maintain a constant
speed, hold the throttle in a constant position. If you let go of the throttle, the bike will start to
decelerate.
Once your bike battery drops to 50% you will enter low voltage mode which will prevent high
speed and high torque to allow proper range to get home. Voltage sag is normal. The greater
the acceleration the greater the sag. For greater range keep throttle use linear.
Modes
Modes can be used in any position at any time. Start out in 1, 2 or 3 depending on your
comfortability. Mode 2 is legal moped speeds and should be used while riding on a public road.
1
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2

GENERAL
The display makes keeping track of your riding easy and
shows all the important information, including speed, battery
pack level, odometer, trip meter, lighting and bike status. Tell-
tale lights indicate warnings, a low power pack, directional
indicators, the headlight, and an illuminated “P” light when the
bike is in a park and non-ridable mode.
Charge Level
The charge level is calculated using coulomb counting.
Accurate state of charge (SOC) is displayed on the left side
of the display, split into segments starting at 100%. If your
display is registering the wrong % check the little black
connectors coming out the display - if 60v connect them if
72v disconnect. You will experience voltage sag while riding.
This is common among electric vehicles and is not to be a
concern.
Odometer and Trip Meter
To (ODO) is seen when the bike is initially turned on, once
the display starts up and cycles, the trip meter (TRIP) view
becomes visible. To reset the trip meter, turn the bike off and
back on.
Display
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2
Speed
This is where your speed is displayed. Speed is based on the
voltage of the bike and the size of the tires. If these change from
the original programming the speed will be off.
Lights
On the left and right sides of the display you will notice the icons
as they light up depending on the lights you are using. High
beam lights up similar to a motorcycle or car display and dims
the LCD display.
Warning Light
If there is a system issue, the warning light will flash and an error
code will be displayed in the odometer area.
When you brake you will notice an (!) icon. This is normal
indicating the brake is engaged.

Lights & Controls
Light Controls
On the left side of the handlebar you will find the lights control
switch:
1. Headlight high/low beam
2. Indicators (turn signals)
3. Horn
4. S - Sport Burst
The headlight and tail lights are turned on via the slider on the
right side or throttle side switches.
Ensure your lights are on at all times while riding, and ensure
you manually slide the turn signal switch back to the center
each time they are used.
The High Beam function is activated by pushing the headlight
switch forward. The headlight must be on low beam while
driving behind or coming at other vehicles.
Sport Burst - S Button - NA
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2
Lighting
The Stinger makes use of low energy LED lighting for all
lighting sources. The DOT approved headlight has running, high
and low beam modes for maximum visibility, both on the road
and trail. Do not use the high beam during the day, when
coming up behind a vehicle, or when approaching oncoming
traffic.
The rear light incorporates the tail light, brake light, and number
plate illuminating light into one unit. Turn signal lights are also
able to be connected to the tail light for simple rear layout
(optional).
DOT approved turn signals are provided in the front and rear.
The system is connected via a Huck specific wiring harness. If
replacement lights are needed, please reach out to Huck or
your Huck dealer.

BRAKE
We have developed the brake system with large diameter DOT
approved brake lines, rotors and fittings, as well as sensor
switches that are connected to the controller and electrical
system. The brakes work in conjunction with the controller, and
Hub Drive to provide assisted braking that uses the motors in
addition to the brake system to provide ultimate stopping power.
To slow down, allow the throttle to return to neutral position and
then apply the brakes: left = rear, right = front.
The motors provide two levels of regenerative braking that assist
in slowing down the bike.
The first level of regenerative braking automatically activates
when the throttle is returned to neutral. This provides a level of
braking similar to engine braking.
The second level of regenerative braking activates when the
brake lever is held. This provides a higher level
of braking and assists the mechanical brakes.
Brakes & Proper Braking Techniques
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DON'T: BRAKE AND THROTTLE
As a safety feature, the brakes kill the throttle and prevent it from
sending signal to the controller. Do not hold the brakes and
throttle together and then release the brakes as this opens the
connection allowing throttle to engage based on where you have
it twisted. The result may create an unsafe riding experience.
When you brake you will notice an (!) icon on the display. This is
normal indicating the brake is engaged.

Suspension
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Over the years we have made a number of changes to the suspension on our bikes. Your Stinger is shipped with the most
accommodating set of front and rear suspension options for a wide range of rider types and riding styles. Upgrades are available
from Huck or other motorcycle parts suppliers.
280mm to 340mm rear suspension
REAR SUSPENSION
No adjustments are required.
Optional Upgraded Shock:
To adjust the rear spring preload, wind the disk at the base of the spring
clockwise to lessen the spring force; twist counter-clockwise to
increase the spring force. The rear suspension preload and rebound
controls should be set equally on both sides of the bike.
680mm to 730mm inverted front forks
48mm top clamp
54mm bottom clamp
41mm headset cups and bearings sets
FRONT SUSPENSION
The front suspension rebound controls and spring preload adjustment
to soften or stiffen the suspension have been preset.
Triple tree specs:

Everything Else
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FOOT PEGS
The Stinger has 2 potential locations for your foot peg mounts. If
the location chosen by Huck during build does not fit your riding
style, a simple set of metric allen-wrenches will allow you to move
them to the other location.
Foot pegs replacements are available from Huck or your Huck
dealer, or any other motorcycle parts supplier.
FRAME
Your frame was designed and fabricated in North Carolina from
good old American steel. Steel, while extremely strong and
durable, can be harmed by the elements and corrosive chemicals
- such as standing water, salt and salt water. Please ensure you
take proper care of the bike frame and all metals parts to prevent
them from rusting or being damaged. A light coat of protectant
has been applied prior to shipping, but it is suggested that you
clean and use automotive protectant on a regular basis.
WIRING
The Stinger has a wiring design which minimizes the additional
wiring required for DOT road legal lighting. With IP65 rated
connections and a modular design, the Stinger's wiring design
keeps visual disruption to a minimum while maximizing
serviceability. A simple waterproof plug and play system.
SEAT
The Stinger comes standard with a large 2-person capable
cushioned seat to provide a comfortable platform for the rider to
sit on. It fastens to the frame via four bolts and can be replaced or
swapped out with ease.
TANK
The Stinger comes with a vintage styled 1978 replica tank which is
the cover for the battery. The tank is made out of ABS plastic
with an all new Acrylic cap to add brilliant color and durability. The
tank can be maintained with many off-the-shelf automotive
cleaners and waxes. Get a scratch and buff it out with ease.

CONTROLLER
All new for the 2023 is the upgraded Sabvoton 72150 Electronic
Control Unit (ECU) or controller which talks to all areas of the
bike. It controls the throttle, talks to the display and motor,
regulates power, speed and use of voltage/amperage to and from
the battery, and enables bluetooth connectivity to maximize the
riding experience.
BATTERY SYSTEM
The battery system is a 60V50Ah lithium-ion removable power
pack. This specially designed power pack provides high discharge
rates for top power, speed and an effective riding range per
charge and has a charge time of 6-8 hours. The battery pack will
function properly in temperatures of 35 degrees F to 110 degrees
F.
While we used 72v batteries in previous years, we found them to
be less efficient and overkill for the motor size, speed and power
needed.
The power pack comes with a wall charger that is designed to be
plugged into a normal 110-120v wall outlet.
powertrain
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HUB DRIVE
The Stinger powertrain is driven by a powerful QS Motor 3000w
hub drive. The drive internals have been wound in a way to allow
more power to be pushed into the bike and the enclosure has a
new sealing system to deliver a drive capable of surviving in
tough, hard working environments, where exposure to mud and
water are constant. The drives are engineered to use regenerative
braking which will assist is slowing the bike down while sending a
small charge back to the battery.
WHEELSET
The bike wheels are 17 x 1.85” DOT rims. DOT are standard,
providing an excellent balance between street comfort and off-
road grip. A wide range of tire options are available for your
different applications with full off-road knobby tires available.

receiving your
Huck
2
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Inspect your Huck Cycles shipment immediately for any damage before the delivery driver leaves and file a claim
immediately with the driver.
Do not sign-off on the delivery unless you are positive no damage has occurred. This will help with shipping
damage claims and speed up the process.
Take photos and video of any damage, and date the images if possible. Keep all packaging and paperwork until
the inspection has been completed.
All damage reports must be submitted to Huck Cycles customer service representatives within 24hrs of delivery
Contact [email protected] for return or replacement instructions.
All Huck Cycles are carefully inspected and ridden before they are delivered. Even after the cycles are inspected,
some technical issues, scratches and blemishes can occur. The following information offers a guide to help you to
identify an issue, report it and if possible, repair it yourself.
If you are unable to solve an issue with your Huck, take it to an authorized dealer at your convenience. If there are no
dealers in your area, please contact your Huck Cycles Customer Service Representative ([email protected]).
inspect
Receiving your Huck
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first ride
Lift up the seat and plug in your battery as they are disconnected for safety during shipping.
Plug the charging port into the battery.
Turn the key to check the voltage. If charge is required - see charging section.
Ready to Ride? (did you read the manual?) Grab your helmet and let's go. Gloves and helmet on, Kick stand up, turn the key so
the display is on. you will see "P" on the display. this is a park/safety feature and disengages the throttle. to engage the throttle,
press the "p" button on the right switch. Once pressed you will see "00" on the display. This means the throttle is now engaged
and active.
It's time! Slowly twist the throttle in a smooth motion back towards yourself. As you feel the motor engage and the bike starting
to roll forward give the throttle a little more love and bring your feet up to the pegs. You are off!
Practice starting off, stopping and turning until you feel comfortable before setting off on your first big ride.
Receiving your Huck
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
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battery &
charging
3
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