1. Information

Please read this entire manual carefully before operating the vehicle.

This manual provides the latest manufacturing information available at the time of publication. Dat Bike reserves the right to make changes at any time without prior notice and without any liability.

This owner's manual provides you with useful information to familiarize yourself with and understand the vehicle's operating functions and to properly maintain and service your vehicle.

This manual applies to Quantum S1, Quantum S2 & Quantum S3 vehicles simultaneously. Illustrations are based on Quantum S1 vehicle.

1.1. Important label location

Read and understand all vehicle labels. These labels contain important information for safe and proper vehicle operation.

Do not remove any of the vehicle's labels. If these labels are faded or come off, contact Dat Bike for replacement.

(A) RFID card swipe location label

(B) Tire specification label

(C) Label of origin of goods

A. RFID card swipe location label

B. Specification label tire​​

1.2. Vehicle identification number

1.2.1. Frame number

The frame number is engraved on the frame below the saddle.

(A) Frame number location

1.2.2. Number of engines

The engine number is engraved on the top side of the engine.

(A) Engine number position

1.3. Safety and environmental protection

DANGER

Your electric vehicle contains equipment that operates at high voltages above 60V. This voltage level is dangerous and can cause injury if it comes into contact with the body.

NOTE:

• Do not install any additional electrical or electronic equipment on the vehicle other than the genuine equipment already available from Dat Bike.
• The motor and battery pack are designed to be waterproof (IP67), however, to ensure their longevity, limit operation in conditions where water is above the footrest.
• Do not disassemble or repair the battery yourself, all warranty repair issues related to the battery must be performed by Dat Bike.
• Do not smash or puncture the battery, this may cause an internal short circuit and result in a potentially life-threatening fire or explosion.
• Comply with legal regulations when disposing of used batteries.

2. Vehicle features and operations

2.1. View from the driver's position

(A) Rearview mirror
(B) Left steering wheel assembly
(C) Multi-function display
(D) Right steering wheel assembly
(E) Rear brake lever
(F) Front storage compartment
(G) Clothes hanger, load capacity: 1.5 kg
(H) RFID card swipe location
(I) Electric throttle
(J) Front brake lever

(K) USB Socket (Quantum S1 & S2 Vehicles Only)

2.2. Left view

(A) Left front turn signal
(B) Position lights (Quantum S1 only)
(C) Headlight cluster
(D) Charging port cover
(E) Side stand with integrated protection switch
(F) Left rear footrest
(G) Center stand
(H) Chain drive system
(I) Left rear turn signal
(J) Rear light cluster

2.3. Right view

(A) License plate light
(B) Right rear turn signal
(C) Electronic control unit ECU
(D) Right rear footrest
(E) Electric motor
(F) Battery pack under the footrest
(G) Right front turn signal

2.4. Steering wheel assembly

(A) High beam/low beam/Passing switch
(B) Horn switch
(C) Turn signal switch
(D) Headlight on/off switch
(E) Multi-function switch

C. Turn signal switch

D. Headlight on/off switch

E. Multi-function switch

(A) Left turn signal indicator
(B) Logo or clock indicator
(C) Right turn signal indicator
(D) Indicates Cruise Control is active or Turtle protection is active
(E) Instantaneous velocity indication
(F) System error warning
(G) Indicates P or D or S or R mode
(H) Battery capacity indicator
(I) Distance traveled (ODO) or distance traveled since starting the vehicle (TRIP) or distance traveled
from last bike charge (1-CHARGE)
(J) Battery temperature indicator
(K) Engine temperature indicator
(L) ECU electronic control unit temperature indicator
(M) Smart phone connection indicator
(N) Indicates the vehicle's output current when operating or the vehicle's input current when charging.
(O) Vehicle going uphill indicator
(P) High beam indicator
(Q) Brake signal indicator is active

2.6 Turning the vehicle on and off

2.6.1. Turn on and off the vehicle with RFID card

Each Quantum S comes with 2 RFID tags by default.

In case of lost card, you need to contact Dat Bike to be provided with a new card.

A. Open the bike with RFID card

When the bike is off, place the RFID card on the card swipe position on the bike to open the bike.

B. Turn off the bike with RFID card

While the bike is on, place the RFID card on the card swipe slot on the bike to turn off the bike.

2.6.2. Turn off the bike without RFID card

To turn off the vehicle in case the RFID tag is not needed, follow the procedure below.

1. Squeeze and hold the left or right brake

2. Turn on the left turn signal switch , then turn on the right turn signal switch
3. The bike is completely off.

Note:

This function works when the vehicle stops completely, speed is 0 km/h.

2.6.3. Unlock the bike with the Dat Bike App

Refer to section 3.2.1 for the operation of opening the vehicle using the Dat Bike App.

2.7 Electric throttle

Turning the electric throttle in the direction (A) will supply energy to the electric motor to move the vehicle forward when the vehicle is in D or S mode and backward when the vehicle is in R mode. The energy supplied to the electric motor is proportional to the angle of the electric throttle (the electric throttle has an integrated initial delay to avoid the throttle being too sensitive, causing danger to the user, increasing the safety of the vehicle).

Turn the electric throttle in the direction (B) to reduce the energy for the electric motor. The electric throttle is released to its original state, the motor will not consume energy, at that time the vehicle continues to slow down due to inertia and under the effect of engine braking.

2.8. Handbrake

Quantum S is equipped with a handbrake like other two-wheelers. When using the handbrake, the engine will automatically turn off to ensure safety. When you want to continue moving, you just need to release the handbrake completely and turn the throttle back up.

2.9 Engine brake

The engine brake on the Quantum S is integrated into the electric throttle. The engine brake's grip is proportional to the electric throttle release angle (the more you release the throttle, the stronger the vehicle grips).

This special feature also helps recharge the battery every time you release the throttle, increasing the travel distance. In addition, the life of the brake pads on the vehicle is also increased because they are used less.

Engine braking only works when the vehicle is in D and S modes.

2.10 Kickstand

(A) Side stand with integrated protection switch

(B) Center stand

A. Side stand with integrated protection switch

The side stand is located on the left side of the vehicle. Use your foot to raise or lower the side stand when the vehicle is in an upright position.

The side stand is integrated with an electrical protection switch to increase safety when the user operates the vehicle.

Note:

• When the vehicle is on and stopped in P mode, if the side stand is not raised, the vehicle cannot be shifted to D or S or R mode. To be able to shift to D or S or R mode, the user needs to lift the side stand.
• When the vehicle is operating in D or S or R mode, if the side stand is lowered, the vehicle will switch to P mode, at this time the vehicle will temporarily stop the controller and not supply power to the throttle, the vehicle speed will gradually decrease to 0 km/h.

B. Center stand

The center stand is located in the middle of the vehicle, supporting vehicle maintenance, storage and repair.

Use your foot to step on the center stand lever, and at the same time use your hand to hold the rear handle to pull the bike up onto the center stand.

2.11. Parking-running Driving-running Super-rear parking support (PDSR) mode

Refer to point E , section 2.4 for the switching operations between PDSR modes described in this section.

Your Quantum S has 4 different operating modes:

• Safety mode: Parking P mode.
• Driving mode: Driving D and Super S driving mode.
• Support mode: Reverse R bike support mode.
• P stop mode is the default mode of the vehicle after successfully opening the vehicle.

The bike will automatically save the previous driving mode when you turn off the bike. For example, when you are operating in S driving mode and you turn off the bike, then you turn the bike on again, the bike will enter the default stop mode P and after pressing the multi-function switch then the bike will go back into S driving mode. This is similar for D driving mode.

(A) Vehicle mode indicator

A. Parking P mode

This mode is the default of the vehicle after it is turned on. In this safe mode, the vehicle is disconnected from the electric throttle so the vehicle will not run even if the throttle is turned.

Features that can be implemented in​ process degree This.

• Open the saddle.
• Switch the mode from stop to Driving or Super, from P to D or to S.
• Switch mode from stop to assist, from P to R.

Note:

• This mode will be activated if the vehicle is operating in D or S or R mode but the side stand is lowered.

B. Process degree Driving D

In this driving mode, the vehicle's throttle power is set at the default level.

Features that can be implemented in​ process degree This:

• Activate Cruise Control.
• Switch mode from Driving to Stop, from D to P.
• Switch mode from Driving to Super, from D to S.
• Switch mode from Driving to Assist, from D to R.

C. Process degree Super S Run

In this driving mode, the vehicle responds to the throttle faster and more sensitively to increase flexibility and driving experience.

Features that can be implemented in​ process degree This:

• Activate Cruise Control.
• Switch mode from Super to stop, from S to P.
• Switch mode from Super to Driving, from S to D.
• Switch mode from Super to trail assist, from S to R.

C. R-bike Assist Mode

In this assist mode the vehicle can reverse the direction of engine rotation and move backwards. This mode can only be activated when the vehicle speed is less than 5 km/h.

Features that can be performed in this mode:

• Switch mode from bike support to Driving, from R to D.
• Switch mode from assist to stop, from R to P.

2.12. Cruise Control

Reference point E, section 2.4 for activating and deactivating Cruise Control.

Cruise Control or automatic throttle. This feature automatically controls and maintains a stable vehicle speed set by the driver. This feature helps the driver feel more comfortable when traveling long distances, because when Cruise Control is activated, you do not need to turn the throttle and the vehicle can still maintain a certain speed.

This feature is activated by pressing and holding the multi-function switch. for 1 second, when the vehicle is running in D or S mode and the speed is greater than 15 km/h.

This feature is guaranteed . If you squeeze the left or right brake or press the multi- function switch

(A) Cruise Control indicator is active

2.13. Turtle T Protection Features

Refer to point E, section 2.4 for the operation to disable Turtle protection.

Turtle protection feature is automatically activated when there is a high current discharge when the battery capacity is low, this helps to limit the phenomenon of the battery suddenly dropping to 0%.

(A) Indicates that the Turtle protection feature is enabled.

2.15. Change background color for multi-function display

LCD of the multi-function display can mode conversion​ degree light or dark background depending on user needs use.

Follow the steps below to enable this feature:

1. Turn the light switch to low beam mode.
2. Press and hold the Passing light switch for 1 second. Then the passing light flashes twice.
3. At this time, the multi-function watch will change the background (if it is in dark mode with color, it will change to monochrome black and white and vice versa).
4. If you want to return to the background mode before switching, repeat the above operations after 10 seconds from the last background color change.

2.16. Combined braking (on Quantum S1)

Only available on Quantum S1 model

Your vehicle is equipped with a braking system that distributes braking force between the front and rear brakes simultaneously.

The braking force distributed to the front and rear brakes when using only the front brake lever or only the rear brake lever is different.

For optimal braking performance, use both front and rear brakes simultaneously.

2.17. USB socket (on Quantum S1 & S2 vehicles)

Your vehicle is equipped with a USB outlet with both USB-A and USB-C interfaces.

You use the USB device at your own risk. Dat Bike is not responsible for any damage to the USB device while in use.

Rated power

• USB-A: 18W (5V-3A, 9V-2A, 12V-1.5A)
• USB-C: 18W (5V-3A, 9V-2A, 12V-1.5A)

(A) USB socket location

3.2.2. Anti-theft alarm function

The anti-theft alarm function helps reduce the risk of vehicle theft. When the anti-theft alarm function is activated, the sensor detects movement or kicking the parking brake or turning on the turn signal, the alarm will sound, the turn signal will flash until you return the vehicle to its original state.

Activate the anti-theft alarm function by following the steps below.

1. Connect the Dat Bike App and the vehicle.
2. Turn off the bike (can be by Dat Bike App or RFID card).
3. Click the button "Lock the bike" to activate the anti-theft alarm system (front and rear turn signals will flash to signal successful activation).

Disabling the anti-theft alarm function can be done in two ways.

1. Tap the "Unlock" icon on the Dat Bike App (front and rear turn signals will flash to signal successful deactivation).
2. Open the bike (by RFID card or using Dat Bike App)

Note:
The anti-theft alarm feature cannot be used when the vehicle is in the open state.

3.2.3. Location determination function

The location function notifies the user of the vehicle's location by activating the vehicle's horn and flashing turn signals.

Enable location functionality by following the steps below.

1. Connect the Dat Bike App to the vehicle.
2. Turn off the bike (can be by Dat Bike App or RFID card).
3. Click on "Find bike" on the Dat Bike app (at this time "Find bike" on the Dat Bike App will display green to show that it is searching for a bike), at this time the horn on the bike will sound and the turn signal on the bike will flash.

Disabling the vehicle tracking system can be done in two ways.

1. Click on "Stop looking for a bike" on the Dat Bike App (at this time "Stop looking for a bike" on the Dat Bike App will be hidden), at this time the horn on the bike stops ringing and the turn signals on the bike stop flashing.
2. Unlock the bike (with RFID card or using Dat Bike App).

Note: When the vehicle is in the open state, the anti-theft alarm feature cannot be used.

(A) Indicates the vehicle location function enabled and disabled status

3.2.4. Electric battery lock function

The battery lock function helps protect the battery, minimizing battery loss when the vehicle is not in use for a long time.

Enable the battery lock function by following the steps below.

1. Connect the Dat Bike App and the vehicle.
2. Click "Change" and "Disable battery" (after disabling the battery, you will not be able to open the bike anymore). Deactivate the battery lock system as follows. 1. Charge the bike for about 02 minutes, swipe the RFID card to open the bike to see if the battery is open or not.

Note: The recommended capacity level of 80% - 90% of the battery is the best level you can turn off the battery. From the time of turning off, you should turn on the battery and check the vehicle every 02 weeks to ensure the vehicle operates normally.

4. Periodic maintenance and adjustment

4.1. Maintenance information and schedule

4.1.1. Maintenance notes

Annual inspections should be conducted annually.
From 20000 km onwards, repeat the maintenance check every 4000 km. The maintenance check should be performed by Dat Bike.

4.1.2. General maintenance table

4.2. Tires

Tires should be checked before operating the vehicle. If the tires are too worn or cracked, contact Dat Bike immediately for replacement.

4.2.1. Tire pressure

Check and adjust tire pressure if necessary before operating the vehicle.

DANGER

• Riding on tires that are worn excessively or improperly inflated can cause an accident in which you are seriously injured or killed.
• Never overload a vehicle, overloading it can be unsafe and affect the quality of the vehicle.

Cold tire pressure

• Operator only: 310 kPa (45 psi)
• Driver and rear passenger: 310 kPa (45 psi)

Maximum load

• 130 kg (287 lbs)
• Total mass of rider, passenger, luggage and accessories.

4.2.2. Tire specifications

The Quantum S is equipped with tubeless tires on the front and rear wheels.
Front tire

• Size: 90/80-16 M/C 54P TL 8PR
• Manufacturer: Casumina/ CA143A

Rear tire

• Size: 110/70-16 M/C 61P TL 8PR
• Manufacturer: Casumina/ CA143A

4.3. Check brake fluid level

Before driving, check that the brake fluid level is above the lowest mark. Add fluid if necessary.

4.3.1. Front and rear brakes

(A) Lowest level mark

Specified brake fluid
DOT 3 or DOT 4

 DANGER

Improper maintenance can cause loss of brake function and cause danger. Beware of the following problems.

• Insufficient brake fluid can allow air into the system causing loss of braking force.
• Clean the oil filler cap before removing. Use correct DOT 3 or DOT 4 oil from a sealed oil reservoir.
• The correct type of brake fluid must be used, otherwise the rubber will age and cause leakage.
• Add new oil of the same type as the old oil. Adding other types of oil other than DOT 3 or DOT 4 may cause a dangerous chemical reaction.
• Make sure that water does not enter the oil tank during oiling. Water will lower the boiling point of the fluid and cause vapor lock in the system.

Note:

• Brake fluid can damage painted surfaces or plastic parts. Always clean up spills immediately.

4.3.2. Replace brake fluid

Bring your vehicle to Dat Bike to have the brake fluid replaced at the specified service intervals. General maintenance table (section 4.1.2) . The brake piston oil seals and brake lines should also be replaced at specified intervals or whenever damaged or leaking.

• Brake system oil seal: Replace every two years.
• Brake hoses: Replace every four years.

4.4. Drive chain

Before driving, check the chain slack, adjust the slack if necessary.

4.4.1. To check chain slack

1. Put the bike on the center stand.
2. Measure the chain slack as shown.

Standard sag
A = 20.0 - 30.0 mm (0.79 - 1.18 in)

4.4.2. Cleaning and lubricating the chain

To ensure durability, the chain must be cleaned and lubricated at the times specified in the General maintenance table (section 4.1.2) , otherwise it will wear out quickly especially when operating the vehicle in dusty, wet areas.

Basic cleaning for chains:

1. Remove mud and dirt from the chain with a cloth or brush.
2. Spray specialized chain cleaning solution onto the entire chain.
3. Use a cloth or brush to continue cleaning the chain.
4. Wipe or rinse the chain.
5. Spray specialized chain lubricant onto the entire chain.

Note:

• If the chain does not move smoothly, makes noise, has broken rollers, loose connecting pins or links, bring the vehicle to Dat Bike for inspection.

4.5. Front wheel

4.5.1. Remove the front wheel

DANGER

Hold the vehicle securely to avoid the risk of it falling over.

1. Put the bike on the center stand.
2. Remove the front axle mounting bolt.
3. Pull the axle out, and then remove the front wheel (note: Do not squeeze the front brake after removing the front wheel and disc, otherwise the brake pads will be clamped).

4.5.2. Install the front wheel

1. Place the wheel between the two shock absorber tubes.
2. Install two wedges on both sides.
3. Thread the front wheel axle and install the axle nut.
4. Tighten the shaft nut to the specified torque of 60Nm.
Tip: When tightening the shaft nut, hold the shaft end with a wrench to prevent rotation.
5. When reassembling the front wheel, squeeze the brake lever firmly several times to check that the brake pads are pressing smoothly.

4.6. Rear wheel

4.6.1. Remove the rear wheel

DANGER

Hold the vehicle securely so there is no risk of it falling over.

1. Put the bike on the center stand.
2. Gently loosen the locking nut and chain slack adjustment nut on each side of the swingarm.
3. Remove the rear axle mounting nut.
4. Push the wheel forward firmly, and then remove the chain from the rear sprocket.
Tip: The rear chain does not need to be removed for rear wheel removal.
5. Hold the brake caliper and gently lift the wheel to pull the axle out.
Tip: A rubber mallet can be useful for getting the rear axle out.
6. Take the wheel out (note: Do not squeeze the rear brake after removing the wheel and disc, otherwise the brake pads will be clamped).

4.6.2. Install the rear wheel

1. Install the rear wheel and rear brake holding tab by threading the rear wheel axle from left to right.
Tip:
- Make sure the caliper is installed between the rear wheel and the rear brake tab.
- Make sure the pin on the rear brake tab fits into the retaining groove on the right swingarm.

- Make sure there is enough space at the front brake pad before assembling the rear wheel.

2. Install the load chain onto the rear sprocket.
3. Screw the nut onto the rear axle.
4. Adjust chain slack.
5. Tighten the rear axle nut to the specified torque of 60Nm.
6. When reassembling the rear wheel, squeeze the brake lever firmly several times to check that the brake pads are pressing smoothly.

5. Vehicle care and maintenance

5.1. Vehicle care

Regular and proper bike care not only helps keep your bike's components within warranty, it also keeps your bike looking good as well as prolonging its life and optimizing its performance.

A clean and regularly maintained bike can easily detect vehicle problems early.

Sea salt can increase the risk of rusting your bike. Therefore, always remember to wash your bike thoroughly after driving near the sea or on roads with salt on them.

5.1.1. Bikewash

Allow the engine, ECU, brakes, battery and other hot parts to cool completely before washing the vehicle.

• Remove mud from the vehicle using a low pressure water hose.
• If necessary, use a sponge or soft cloth dipped in a mild detergent solution to wipe the vehicle.
• Clean the headlights and other plastic parts carefully to avoid scratching them.
• Avoid spraying water directly on electrical system components.
• Rinse the vehicle with plenty of water and dry it with a soft towel.
• Once the vehicle has been dried, lubricate the moving parts of the vehicle.
• Make sure that the lubricant does not get on the brakes or tires. Oil on brake discs and brake pads will significantly reduce braking efficiency and may cause an accident.
• Lubricate the chain with a specialized solution immediately after washing and drying the vehicle. Apply a layer of protective oil to prevent rust on the vehicle.
• Do not use preservative oils that contain harsh chemicals or detergents as these may damage the metal parts and plastic paint on your vehicle. Do not allow preservative oil to splash onto tires and brakes.
• If the vehicle has matte painted parts, avoid getting preservative oil on them.

Note:

• Do not use high pressure water jet to wash the bike.
• Do not spray water directly under the trunk.
• Do not spray water directly into the area around the headlights, steering wheel cluster, multi-function display, USB socket.
• Dry the brakes after washing the bike.

5.1.2. Care of plastic covers

Follow these instructions to avoid scratching plastic covers.

• Clean plastic panels with a soft sponge and plenty of water.
• To remove stains from plastic cladding, use a diluted cleaning solution and rinse with plenty of water.
• Avoid getting gasoline, brake fluid or cleaning agents on the dashboard, plastic trim or headlights.

5.2. Vehicle maintenance

If the vehicle is not used for a long period of time, do the following:

• Wash and dry the bike.
• Lubricate the chain and drivetrain. Charge the bike until the battery is full.
• Check tire pressure and inflate as necessary. Park the bike on the center stand.
• Use a specialized tarpaulin to cover the bike.
• Store the vehicle in a dry place and away from areas with high temperatures or areas with sudden temperature changes.
• Battery capacity will decrease very slowly over time. Check the battery capacity periodically once a month and recharge the battery when the capacity drops below 20%.

Note:

• Do not store the vehicle with less than 20% battery capacity. Storing the battery with less than 20% capacity for a long period of time may cause the battery to be completely damaged.

6. Specifications

Quantum S1

Quantum S2

Quantum S3