VTUVIA SF20 User manual

SF20

Table of Contents
About Manua ..............................................................................................................................................................1
Basic information ........................................................................................................................................................2
Assembly Instructions .................................................................................................................................................5
Operation...................................................................................................................................................................14
Battery Charging .......................................................................................................................................................19
Maintenance..............................................................................................................................................................23
Troubleshooting.........................................................................................................................................................27
Warnings and Safety..................................................................................................................................................29
Limited Warranty .......................................................................................................................................................33

About Manual
This manual contains details of the product and information on its operation and maintenance. Read it
carefully and familiarize yourself with the VTUVIA bike before using it to ensure safe use and prevent tragic
accidents. Be sure to retain this manual as your convenient VTUVIA bike information source.
This manual contains many Warnings and Cautions concerning the safe operation and
consequences if safe setup, operation and maintenance are not performed. All information
in this manual should be carefully reviewed and if you have any questions you should
contact VTUVIA Dealer immediately. The notes, warnings and cautions contained within
the manual and marked by this triangular Caution Symbol should also be given special
care. Users should also pay special attention to information marked in this manual
beginning with NOTICE.
Because it is impossible to anticipate every situation or condition which can occur while riding, this manual
makes no representations about the safe use of bicycles under all conditions. There are risks associated
with the use of any bicycle which cannot be predicted or avoided, and which are the sole responsibility of
the rider. You should keep this manual, along with any other documents that were included with your bicycle,
for future reference, however all content in this manual is subject to change or withdrawal without notice.
VTUVIA Bike makes every effort to ensure accuracy of its documentation and assumes no responsibility of
liability if any errors or inaccuracies appear within.
- 1 -

Basic Information
Motor: 48V 750W Rear brushless
48V 13AH Li-ion Battery
48V 25A Intelligent brushless
1:1 Intelligent pedal assistant system
22 miles(electric only),35 miles(pedal assistant)
AC 100V-240V 2A smart charger,5-6 hours
Shimano front 1 and rear 7 outer
6061 Aluminium alloy folding
Foldable Padels
KENDA 20*4.0 tyre
Suspension fork
Logan disc brake
Battery:
Controller:
PAS:
Range:
Charging Time:
Rear Derailleur:
Frame:
Pedals:
Tyres:
Front Fork:
Front Brake:
- 2 -

Logan disc brake
Aluminium alloy
Aluminium alloy crank
Aluminium alloy
Rear rack iron
Black,White,Red
23-28 MPH
300 lbs
60 lbs
80 lbs
Pedal mode,power assist mode,full electric mode
LCD
LED headlight & tail light
KMC
Rear Brake:
Stud:
Diaplay:
Light:
Chain:
Chain Wheel:
Seat Post:
Shelves:
Colour:
Modes:
Max Speed:
Net Weight:
Max Load:
Gross Weight:
- 3 -

Basic Structure
Battery
Frame
Saddle
Fork
Valve
Spoke
Pedal
Rim
Motor
Rear Derailleur
- 4 -

Assembly Instructions
NOTICE: The following assembly steps are only a general guide to assist in the assembly
of your VTUVIA Bike and is not a complete or comprehensive manual of all aspects of
assembly, maintenance and repair. We recommend you consult a certified bicycle mechanic
to assist in the assembly, repair and maintenance of your bicycle.
- 5 -
Step 1: Remove bike from carton and carefully set out all contents of the box. Remove packaging material
protecting the bicycle frame and components. Ensure the following pieces are included in the package.
If there are any missing parts please contact VTUVIA Bikes for help replacing missing pieces. Please also
ensure you have received the correct frame size before assembling the bike.
Package include: VTUVIA SF20 bike frame, Front Wheel, Front wheel
quick release, Pedals (Left and Right), Front headlight, Charger,
Keys for battery pack, Assembly tools and manual
1
3 4 52

- 6 -
Step 2 : Open the tool box ii the package twist off the nut get out a little spring insert the centre
axle adjust the wheel lock off the quick release finish installation

- 7 -
Step 3 : Folding stem assembly schematic
1.Unscrew the
sunflower screw. 2.Remove the
sunflower screw.
3.Insert the
Riser assembly.
4.Insert the
riser to complete.
5.Fold the
riser down.
6.Fold the riser
down to effect.
7.Install the
sunflower screw.
8.Tighten the
sunflower screw.
9.Fold the riser
back into position.
10.Tighten the 2
screws on the
outside of the riser.

- 8 -
Step 4 : Install the pedals. The left and right pedals are marked on both ends. First, install the right pedal
by tightening the pedal in clockwise direction. The left pedal is tightened by turning the pedal in
counterclockwise direction.
Step 5: Install the headlight. Mount the headlight on the front fork as picture shows.

- 9 -
Step 6 : Adjust the saddle height. Loosen the seat clamp, insert the seat post into the slot, adjust the saddle
height to a suitable height and tighten the adjustment nut. When you feel resistance, close the seat tube
clamp fully. Make sure to stay within the marked adjustment range. Do not raise the seat post beyond the
minimum insertion marking etched into the seat post tube.
Step 7 : Check the battery pack is locked into the frame of the bike. When you want to take off the battery,
insert the key and turn to release the battery pack. The battery pack can be removed and charged separately.
Align the battery pack to the battery holder carefully and push until when you hear it click into the place.

- 10 -
Step 8: Check the battery pack is locked into the frame of the bike. When you want to take off the battery,
insert the key and turn to release the battery pack. The battery pack can be removed and charged separately.
Align the battery pack to the battery holder carefully and push until when you hear it click into the place.

- 11 -
Step 9: Folding & unfolding the frame
To unfold the frame, unfold the rear wheel/section and keep your bike upright with the kickstand. While
holding the latch lock up, push the latch closed. Make sure the hook end of the latch is secure and let the
latch lock turn down into the latch to lock everything in place.
To fold the frame. While holding the latch lock up, use your other hand to open the latch by pulling it away
from the frame.
NOTICE: Ensure all hardware is
tightened properly and all safety
checks in the following sections
are performed before first use.
Contact FASTVIB Bike if you have
any questions regarding the assembly
of your bike.

- 12 -
Display Features

- 13 -

- 14 -

- 15 -

- 16 -
Operation
Start-Up Procedure
After the bike has been properly assembled following the unboxing video and all components are secured
correctly, you may now proceed to start up the vehicle and select the power level following the next steps.
1. Press “M” to turn on the display.
2. Select your desired level of pedal assistance between level 0 through 5 using the up and down arrows
on the display remote. Level 1 corresponds to the lowest level of pedal assistance, and level 5
corresponds to the highest level of pedal assistance. Level 0 indicates pedal assistance will be inactive.
3. To turn on the headlight once the LCD display are on, long press “+” to turn on the headlight.
4. With the proper safety gear and rider knowledge and understanding you may now proceed to operate
your VTUVIA Bike. You can begin by pedaling the bike in the appropriate drive train gear with or without
pedal assistance. You may also use the throttle to accelerate and maintain your desired speed.
Driving Range
The range of your VTUVIA Bike is the distance the bike will travel on a single full charge of the onboard
battery pack.The range values in this manual are estimates based on expected usage characteristics.
Some of the factors which effect range include changes in elevation, speed, payload, and acceleration,
number of starts and stops and ambient air temperatures. Tire pressure and terrain are also important
variables to consider.