RMB EV flex 500 User manual


Table
Table
Table
Table of
of
of
of Contents
Contents
Contents
Contents
Technical Information-- ---------
--
---------------------- 1
Warning Statement- ------------------------------------ -2
Read Before Riding-------------------------------------3
List Of Parts ----------------------------------------------- 4
Front Bar- -------------------------------------------------- 6
Tool
Kits In The
Tool
Bag ------------------ -- ---------- 7
Assembling The Flex 50 0- ---------------- --- -------- --8
Charging The Batteries -------------- -- --------------- 1 2
Riding The Flex 500 ----------------------------------- 1 3
Folding The Flex 500 --------------------------------- -1 6
Maintenance-- ------------------------------------------ -1 8
Wiring Diagram --------- - ------------------------------- 1 9
Trouble Shooting Guide- --------------------------- -- 21
Warranty-------------------------------------------------2 3

1
Technical
Technical
Technical
Technical
Technical
Technical
Technical
Technical
Information
Information
Information
Information
Information
Information
Information
Information
Flex
Flex
Flex
Flex 500
500
500
500
Model No. RMB Flex 500
Product size
40 L x 27 W x 38 H inch (102
L x 68 W x 98 H cm)
Type of motor
Permanent-magnet
brushless DC wheel motor
Motor power 500 w Wheel motor, 48 V
Battery type sealed lead acid battery
Battery capacity 48 Volt, 12Ah
Charger 110V-240V, UL approved
Charging time 4-6 hours
Max. speed Up to 15 MPH ( 25 km/h)
Single charge Up to 20 MILES (32 km)
Max capacity 275 LBS (100 kg)
Net weight
1
12 LBS (51 kg)

2
Warning
Warning
Warning
Warning
Warning
Warning
Warning
Warning
Statement
Statement
Statement
Statement
Statement
Statement
Statement
Statement
Flex
Flex
Flex
Flex 500
500
500
500

3
Read
Read
Read
Read
Read
Read
Read
Read
Before
Before
Before
Before
Before
Before
Before
Before
Riding
Riding
Riding
Riding
Riding
Riding
Riding
Riding
Flex
Flex
Flex
Flex 500
500
500
500
WARNING
WARNING
WARNING
WARNING
THE RMB FLEX 500 IS NOT
A
TOY AND SHOULD NOT
BE OPERATED BY ANYONE UNDER 12 YEARS OLD.
Safety
Safety
Safety
Safety Instructions:
Instructions:
Instructions:
Instructions:
(
Please take note of the following before each ride)
•The maximum weight capacity is 275 lbs.
•Only one person at a time should ride.
•Always wear protective gear including knee and elbow pads and
an approved safety helmet when riding the Flex 500.
•
Before riding, be sure to check that all pivot points, locking
buttons, quick releases, and latches are secured properly.
•The power switch lock must be in the “ off ” position when the Flex
500 is being charged.
•Do not use the Flex 500 when it is raining.
•Do not place the battery near heat or fire.
•
Do not expose the charger to water or any moisture.
•
Check if batteries are properly charged and installed.
•
Charge Batteries after each use.
•Always ride on dry paved surfaces. Gravel, wet and uneven
surfaces are a hazard.
•Check if all tires are properly inflated. Low tire pressure will
decrease range and power.

4
List
List
List
List
List
List
List
List
Of
Of
Of
Of
Of
Of
Of
Of
Parts
Parts
Parts
Parts
Parts
Parts
Parts
Parts
Flex
Flex
Flex
Flex 500
500
500
500

5
Flex
Flex
Flex
Flex 500
500
500
500
1 Throttle
2 Multi-function Instrument
3 B rake lever
4 Alloy handlebar tub
5 Quick release
6 Connecting tube
7 Seat
8 Battery & controller compartment
9 Balancing wheel
10 Footboard
11 Rear wheel
12 Power connecting plug s
13 Allen set screw
14 Front fender
15 Front fork
16 Motor
17 Front wheel
18 Basket
19 Charger port

6
Front
Front
Front
Front
Front
Front
Front
Front
Bar
Bar
Bar
Bar
Bar
Bar
Bar
Bar
Flex
Flex
Flex
Flex 500
500
500
500
1 B rake lever
2 Horn switch
3 Multi-function Instrument
4 Key switch
5Throttle

7
Tool
Tool
Tool
Tool
Tool
Tool
Tool
Tool
Kits
Kits
Kits
Kits
Kits
Kits
Kits
Kits
In
In
In
In
In
In
In
In
The
The
The
The
The
The
The
The
Tool
Tool
Tool
Tool
Tool
Tool
Tool
Tool
Bag
Bag
Bag
Bag
Bag
Bag
Bag
Bag
Flex
Flex
Flex
Flex 500
500
500
500
1 Screwdriver
2 Allen wrench (2.5mm )
3 Allen wrench (3mm )
4 Allen wrench (5mm )
5 Allen wrench (6mm )
6 W rench (8 x 10mm)
7 W rench (16 x 18mm)
8 W rench (16 x 18mm)
9 charger

8
Assembling
Assembling
Assembling
Assembling
Assembling
Assembling
Assembling
Assembling
The
The
The
The
The
The
The
The
Flex
Flex
Flex
Flex
Flex
Flex
Flex
Flex
500
500
500
500
500
500
500
500
Flex
Flex
Flex
Flex 500
500
500
500
1. Unpack the Flex 500 carefully so that you do
not misplace any of the parts.
2. Place the Flex 500 on a flat, level surface.
Block the front up 3.5''. This will make the next
step easier
3. Remove the bolts and nuts from the
connecting tube clamp (B). Place the
connecting tube into the top opening (A) .
After aligning the holes, place the two bolts
through the connecting tube and neck
assembly. Twist the bolts, do not hammer
them through . Tighten these two bolts with the
nuts provided.

9
Assembling
Assembling
Assembling
Assembling
Assembling
Assembling
Assembling
Assembling
The
The
The
The
The
The
The
The
Flex
Flex
Flex
Flex
Flex
Flex
Flex
Flex
500
500
500
500
500
500
500
500
Flex
Flex
Flex
Flex 500
500
500
500
4. The two Allen set screws on the front of the
connecting clamp are for removing any play
after the bolts have been tightened. First, back
off the nuts, second, set the screws, third,
tighten the nuts to prevent the screws from
backing off .
5. Extend the handle bar tube to full upright
position , and slide it into connecting with the
front fork.
*Note: The tube shaft is intentionally off center to
allow handlebars to fold to the side. Be sure to
align release button to pivot on brake handle side
Two Allen
set screws

10
Assembling
Assembling
Assembling
Assembling
Assembling
Assembling
Assembling
Assembling
The
The
The
The
The
The
The
The
Flex
Flex
Flex
Flex
Flex
Flex
Flex
Flex
500
500
500
500
500
500
500
500
Flex
Flex
Flex
Flex 500
500
500
500
6. Ensure that the handlebar is facing front, the
brake on the left side and the throttle on the
right , then tighten the handlebar tube collar
clamp using the enclosed 5mm wrench.
7. Plug in the two power connecting plugs into
the sockets. The design of each plug and
socket is different. Connect the ones which
best fit each other to finish the assembly.
8. Match the pins of the plugs to the holes of
the sockets. Note the alignment notches.

11
Assembling
Assembling
Assembling
Assembling
Assembling
Assembling
Assembling
Assembling
The
The
The
The
The
The
The
The
Flex
Flex
Flex
Flex
Flex
Flex
Flex
Flex
500
500
500
500
500
500
500
500
Flex
Flex
Flex
Flex 500
500
500
500
NOTE
NOTE
NOTE
NOTE : Handle bar height adjustment. Handle
bar height can be easily adjusted by opening the
quick release on the handlebar tube to preferred
height, then firmly closing quick release.

12
Charging
Charging
Charging
Charging
Charging
Charging
Charging
Charging
The
The
The
The
The
The
The
The
Batteries
Batteries
Batteries
Batteries
Batteries
Batteries
Batteries
Batteries
Flex
Flex
Flex
Flex 500
500
500
500
●Before you ride the Flex 500 for the first time
you must charge the batteries for 4-6 hours using
only the supplied charger.
●
To
charge the batteries, plug the charger into
the charger socket located on the rear side of the
battery/controller compartment. Then plug the
charger into a wall outlet. Red light on charger
indicates charging, green light indicates charged.

13
Riding
Riding
Riding
Riding
Riding
Riding
Riding
Riding
The
The
The
The
The
The
The
The
Flex
Flex
Flex
Flex
Flex
Flex
Flex
Flex
500
500
500
500
500
500
500
500
Flex
Flex
Flex
Flex 500
500
500
500
●Once you have completed the initial charge you
are ready to ride. Remember, this is not a toy. The
Flex 500 can reach speeds up to 15 mph
depending on the terrain and the weight of the
rider.
You
must wear a helmet and protective pads.
Be aware of all local laws and ordinances that
govern and/or restrict the use of powered
scooters. The laws and ordinances vary greatly
from municipality to municipality. It is your
responsibility to know and abide by your local
restrictions.
●
To
ride, insert the key into the key switch and
turn the key in clockwise direction till the first click.
The battery gauge will be illuminated indicating
that the battery is in operation. If you want to turn
on the front light, please turn the key to the
second click in clockwise direction.
●Hold onto the front bar with both hands. Your
left fingers will control the brakes and your right

14
Flex
Flex
Flex
Flex 500
500
500
500
hand will control the throttle . As you turn the
throttle to wards yourself, the speed will be
increase d . Release the throttle and apply the
brake to stop the scooter. You will control the
speed of the scooter by using both the throttle
and the brake. When the brake handle is
squeezed it cuts power off the throttle.
NOTE
NOTE
NOTE
NOTE 1
1
1
1: WARNING: Never try stunts . Always
maintain a safe speed.
NOTE
NOTE
NOTE
NOTE 2
2
2
2: When scooter is parked, please remove
the key, this will avoid anyone from accidentally
turning the throttle causing the scooter to speed
forward. Failure to do this could lead to an
accident.
NOTE
NOTE
NOTE
NOTE 3
3
3
3: If you need to stop in an emergency or
kill power quickly, you can turn the key off.
NOTE
NOTE
NOTE
NOTE 4:
4:
4:
4: Depending on skills of the driver, the
Flex 500 comes equipped with an adjustable
speed switch located at the back of the scooter by
the charge port which allows you to limit speed to
8mph or switch to max speed of 15 mph.

15
Flex
Flex
Flex
Flex 500
500
500
500

16
Folding
Folding
Folding
Folding
Folding
Folding
Folding
Folding
The
The
The
The
The
The
The
The
Flex
Flex
Flex
Flex
Flex
Flex
Flex
Flex
500
500
500
500
500
500
500
500
Flex
Flex
Flex
Flex 500
500
500
500
1. Turn off the key switch
2. Press the quick release to bottom.
3. Lift the clip bar, at the same time pull the
handlebar tube.

17
Folding
Folding
Folding
Folding
Folding
Folding
Folding
Folding
The
The
The
The
The
The
The
The
Flex
Flex
Flex
Flex
Flex
Flex
Flex
Flex
500
500
500
500
500
500
500
500
Flex
Flex
Flex
Flex 500
500
500
500
4. Lift the connecting tube (which is also
attached to the handlebar tube).
5. C arefully place the handlebar tube on the
footrest frame

18
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Flex
Flex
Flex
Flex 500
500
500
500
Battery:
Battery:
Battery:
Battery: (for professional use only)
The RMB Flex 500 is powered by 4, 12 volt,
rechargeable batteries housed in a single
compartment. Other than recharging, these
batteries need no maintenance.
To
prolong
battery life, recharge the battery after each use.
You
must also charge your Flex 500 if it has not
been used for 30 days or more. If you need to
replace the battery pack, it is located inside the
battery compartment on the footboard.
To
get to
the battery pack, remove the compartment cover
by loosening the screws.
To
remove the batteries
disconnect the wires from the battery terminals.
Replace the battery pack with a new one and
reconnect the wires. Follow the instructions on
charging batteries to charge the new batteries.
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