Classic
Let’s start assembling your NAKTO Classic ebike!
(Please read this entire assembly manual before assembly as it will save
you a lot of time!)
Step One: Unpack the ebike.
1.Pull the frame and all parts (charger, seat, toolkit, keys, nut caps and
pedals) out of cardboard box. Separate bike from foam padding. Cut off
all zip ties with scissors while being extra careful as not to damage the
paint or cut any wires or cables.Notice: Keep the spare fuse in a safe
place.It is not used for assembly and will be used for the replacement if
the original fuse were damaged.
Ensure all the following pieces are included with the Nakto Classic.
Assembly Instructions: Classic
Tools included:Screwdriver, Phillips & Slotted 2 in 1
Double open-end wrench, 13mm/15mm
Allen wrench, 5mm
Allen wrench, 6mm
Tools needed: Scissor
Bike pump
2.Now stand the bike upright. Place some foam padding under the front
fork if placed on the ground or put it on bike assembly/repair stand if you
have one. We want to keep your bike looking new!
Step Two: Assemble the front wheel .
1.Loosen axle nuts on front wheel to make room for the front fork.
2.Remove the brake cable from the linkage of the left arm while squeez-
ing the brake arms to make room for the front wheel.
3.Lift the front of the bike and lower the fork onto the wheel. Notice: The
axle should enter the fork dropouts fully.
4.Attach the fender mounting arms to the front fork. Remove the mount-
ing bolts from the fork. Pass the bolt through the arm mount and fork
mounting point. Ensure the fender is centered and tighten both the
mounting bolts.
5. Once the lock washers are in place tighten both axle nuts with the
supplied double open-end wrench. Notice: Before doing the final tighten-
ing of the axle nuts make sure the wheel is square and true with the forks.
6.Push the black plastic caps onto the axle nuts.
7.Put the brake cable back to the linkage of the left arm while squeezing
the brake arms.
Step Three: Install the handlebar.
1.Install the handlebar stem into the steer tube.
2.Set the stem to the desired height but not exceed max height or mini-
mum insertion.
3.Align the stem so the handlebar is perpendicular to the front wheel.
4.Tighten the bolt on top of the handlebar stem with the supplied allen
wrench.
5.Perform a twist test.
(1).Brace the front wheel between your legs.
(2).Switch hands so the opposite hands are pushing and pulling with
about 20 pounds of force make sure the handlebar and front wheel are
still properly aligned.
(3).Repeat the twist test pulling/pushing with the opposite hands.
Step Four: Install the front fender and headlight.
1.Remove the fender and headlight mounting bolt from the fork arch and
set aside.
2.Place the fender in position. From the back of the front tire, pass the
front fender mounting point under the front fork arch.
3.Attach the headlight and fender to the fork arch. Pass the bolt through
the headlight mount, fender mounting point and fork arch mounting
point. Notice: the fender bracket should go in between the arch bracket
and headlight bracket. Thread the locknut at the bolt end and tighten
4.Attach the fender mounting arms to the front fork. Pass the bolt through
the arm mount and fork mounting point. Thread the locknut at the bolt
end and tighten with the supplied screwdriver. Ensure the fender is
centered and tighten both the mounting bolts.
with the supplied screwdriver.
5.Center the headlight and adjust the angle slightly downwards to illumi-
nate the road ahead and not blind oncoming traffic. Use the supplied
Phillips-head screwdriver to loosen the headlight angle adjustment bolt,
tilt the headlight to the optimal position, and then tighten in place
securely.
Step Five: Adjust the front brake system.
NOTICE: The adjustment of the front brake system is not easy. The
following steps are only a general guide. If you are not sure you have the
experience, skills, and tools to correctly perform all steps, consult a
certified, reputable bike mechanic to assist with it.
1.Pad Adjustment.
Remove the brake cable from the linkage of the left arm while squeezing
the brake arms.
Loose the pad mount, bring the arm and pad to the rim, and adjust.
Locate the pad to the top edge of the braking surface. Notice: Do not
locate the pad to the top edge of the rim. It would hit the tire.
Bring the pad gently to the rim and push with some mild force and secure
the nut. The pad will tend to be self-aligning and put the convex-concave
washers where it needs to be correctly aligned with two flat surfaces, the
rim and the pad-aligned. Hold the pad as you tighten the final tightness.
Repeat the process on the other side.
Put the brake cable back to the linkage of the left arm while squeezing
the brake arms.
2.Cable Attachment.
Before we draw the pads together, back out the barrel adjusters three or
four turns. So that we can have some fine tuning at the lever.
3.Set Pad Clearance.
Bring the barrel adjuster in toward the lever, giving more slack. Typically,
the pads should feel like they are contacting the rotor at a minimum of
1/2 the lever travel.
Loosen the pinch bolt. Pull the arms together with your hand and pull the
cable out with some mild force. It is only necessary to get the rim close.
Then secure the pinch bolt. It should flatten and crush the cable.
4.Centering.
Centering is done by subtle changes in spring tension. There are screws
to the return spring on both sides. By tightening the screw, you are
increasing tension on whatever side you tighten. The end goal here is to
keep even pad clearance on either side of the rim. Take the right pad for
example, we can tighten to make it far from the rim, or loosen the screw
to make it close.
Step Six: Install the seat.
1.Open the quick release lever by hinging it open fully.
2.Insert seat post into seat tube. Adjust the seat post up or down to a
comfortable height, while ensuring the seat post is inserted into the
frame past the minimum insertion point.
3.Close the quick release lever to secure the seat post and check that it
cannot move. If needed, use the thumb nut to add tension to the clamp
so there is some resistance when the lever is in line with the clamp bolt.
Step Seven: Install the pedals.
1. Locate the pedal with an “R” stamped into the end of the pedal axle,
which indicate it is the right pedal. The right pedal goes on the crank on
the right side of the bike. The remaining pedal with an “L” stamped into
the end of the axle, is the left pedal. The left pedal goes on the crank on
the left side of the bike.
2.The right pedal is threaded to tighten by turning clockwise. The left
pedal is reverse-threaded and tightens counterclockwise. Carefully
thread the pedal onto the crank by hand slowly.
3.Further tighten with the supplied double open end wrench. Do not
cross thread or damage the threads.
Step Eight: Install basket .
Notice: The basket may not arrive together with the Nakto ebike as it will
be packed and dispatched separately.
1.Install bottom bracket (bracket 1).
(1).Remove the axle nuts on front wheel with the supplied double
open-end wrench and set aside.
(2).Install “bracket 1” onto the front wheel axle.
(3).Tighten both axle nuts with the supplied double open-end wrench.
(4).Once you have tightened both axle nuts push the black plastic caps
onto the front axle nuts.
2. Fix the basket to the mount extending from the stem of handlebars.
Pass the bolt through “bracket 2” mounting point, the top mounting
point of the basket and the mount extending from the stem of handle-
bars. Thread the lock nut onto the bolt end and tighten with the supplied
screwdriver.
3. Fix the basket to the bottom bracket. Fit the bottom bracket into the
curve of “bracket 4”. Pass the bolt through “bracket 3” mounting point,
the basket bottom mounting point and “bracket 4” mounting point.
Tighten with the supplied screwdriver.
4. Snap the cover into place.
Step Nine: Inflate the tires.
Check that the tire beads and tires are evenly seated around the rims. Use
a pump with a Schrader valve and pressure gauge to inflate each tire to
the recommended pressure indicated on the tire sidewall. Do not overin-
flate or underinflate tires.
Step Ten: Charge the battery.
Operate the electrical system when the battery has been adequately
charged and the battery is secured to the frame mount.
Your Nakto bike comes partially charged. We recommend you Connect
the charger input plug (110/220-volt plug) to the power outlet for 3 to 4
hours. The charger light will go from red to green when it is fully charged.
Step Eleven: Ensure all hardware is tightened properly
following recommended torque values.
Recommended Torque Values:
Hardware Loca�on Hardware
Torque Required
(Nm)
Front Dropout Area
Front Axle Nuts
40
Handlebar Area
Handlebar Stem Bolts
15
Handlebar Area
Brake Lever Clamp Bolt
6
Handlebar Area
Shi�er Clamp Screw
6
Brakes
Caliper Adapter to Frame
8-10
Brakes
Pad to Caliper Arm
6
Brakes
Brake Cable to Caliper Clamp
6
Fenders
All Fender Moun�ng Bolts
and Hardware
6
Headlight Headlight Moun�ng Bolt 6
Headlight
Headlight Angle Adjustment
Bolt
6
Basket Area
All Basket Moun�ng Bolts
and Hardware
6
Seatpost Area
Seat Angle Adjustment Bolt
20
Rear Dropout Area
Rear Axle Nuts
40
Rear Dropout Area
Rear Torque Arm Bolt
5
Derailleur Hanger Moun�ng
Step Twelve: Register warranty card with us ASAP.
Notice: Keep proof of purchase in a safe place. Keep packing and box for
at least two weeks from the date of purchase. (As we do not provide a box
for returns if needed.)
Have fun and be safe!
Hardware Loca�on Hardware
Torque Required
(Nm)
Rear Dropout Area
Rear Axle Nuts
40
Rear Dropout Area
Rear Torque Arm Bolt
5
Rear Dropout Area
Derailleur Hanger Moun�ng
Bolt
6
Rear Dropout Area
Derailleur Moun�ng Bolt
10
Rear Dropout Area
Derailleur Cable Pinch Bolt
6-8
Rear Dropout Area
Kickstand Moun�ng Bolts
8
Bo�om Bracket and
Crank Area
Bo�om Bracket and Lockring 60
Bo�om Bracket and
Crank Area
Crank Arm Bolt into Bo�om
Bracket Spindle
35
Bo�om Bracket and
Crank Area
Pedal into Crank Arm 35
Bo�om Bracket and
Crank Area
Chainring Bolts 10
Bo�om Bracket and
Crank Area
Controller Moun�ng Bolts 6
Quick Start Guide
This ebike is equipped with two ways for a rider to use power assistance
from the motor to propel the bike forward:
The pedal assist system (PAS) ⸺The rider can engage the pedal assist
system (PAS) while pedaling, and it will call up assistance from the motor
to help propel the bike forward.
The twist throttle⸺The throttle is located on the right side of the
handlebar. The rider can use it with a twist of the throttle grip to propel
the bike forward without pedaling.
Warning: The throttle is active whenever the bike is turned on. Do not use
the throttle unless you are on the bike.
Start-Up Procedure
1.Turn on the battery with the key. Insert the key and turn clockwise to
position (1).
Battery Key Positions
Key Position /
Icon
Description
1
2
3
ON , Locked to the frame
OFF, Locked to the frame
OFF, Unlocked (ready for removal from the frame)
2.Sit on the bike.
3.Turn on the headlight if needed or desired. Press the light button on
the left side of the handlebar to turn the headlight on. Press it again to
turn the headlight off.
4.Begin riding carefully⸺Hold handlebars and start pedaling on a flat
surface, in a low gear (1 or 2), most riders should be able to begin pedal-
ing the bike with pedal assist. You may also use the throttle to accelerate
and maintain your desired speed.
5.The throttle is used by slowly and carefully rotating the throttle back-
ward toward the rider. The more you twist, the more powerfully the
throttle will propel the bike forward. The throttle is active whenever the
bike is turned on. Do not use the throttle unless you are on the bike.
Do not use the throttle while dismounted. Avoid accidental application of
the throttle while dismounted; anytime you are moving the bike while
dismounted, ensure the bike is powered off to prevent accidental applica-
tion of the throttle.
6.Brake⸺Brake the bike by squeezing the brake lever (Notice: as a
safety feature applying either front or rear brake will disengage the
motor.)
7.Turn off the battery and remove the key when you park.
We recommend that you always wear protective gear when cycling such
as a helmet, gloves, elbow pads and goggles.
When riding, obey the same road laws as all other road vehicles as appli-
cable by law in your area.
Best to charge the battery during the day when someone is around.
Overnight charging is not recommended.
Before riding always carry out a through safety check each time. We
highly recommend that you read the instruction manual before your very
first ride.
It is the user’s responsibility to ensure a potential passenger on the Nakto
eblike is adequately experienced and healthy enough to ride safely as a
passenger. Serious injury or death can occur if passengers are inexperi-
enced or in poor health such that it impacts their ability to ride as passen-
gers safely.
Carrying baggage may reduce the control of your ebike.
Take extra care while riding in wet and sandy surface including decreasing
speed and increasing braking distances.
!
WARING
Trek Power Inc
Toll Free: 1-855-997-7297
E-mail: support@nakto.com
Website: www.nakto.com
Adress:1683 Sierra Madre,Placentia,CA 92870
ELECRTIC
BICYCLE
