Ultra motor Europa User manual

Europa Electric Bicycle
Owner’s Manual
1

©Ultra Motor USA
1661 Tennessee St. Unit 2J
San Francisco, CA 94107 USA
[phone]
Part number: 100001
Version 3.3
Winter 2010
2

Table of Contents
I. Introduction 3
II. Serial Numbers 7
III. Specifications 8
IV. Callisto Component Chart 10
V. Europa Component Chart 11
VI. Unpacking and Assembly 12
VII. Operation 19
VIII. Battery Use, Care and Maintenance 31
IX. Troubleshooting 35
3

I. Introduction: A word about this Owner’s Manual and your
safety…
Dear Customer, (And anyone else that looks at this page…)
We like you a lot. You bought our bike! For geeky engineering and electric bike people
like us-- that makes you one of our favorite people. Thanks!
Preventing injury is what reading this manual is all about.
Cycling (electric or otherwise) can be a hazardous activity, no matter what type of
bicycle you ride. Traffic, weather, distractions, and many other factors can endanger you
while using any type of bicycle or vehicle. Mistakes and accidents (and bad luck) can
lead to severe injury or death. (We hate those words, but they must be said.).
Electric bikes have several kinds of energy and one of them is kinetic energy. This means
that when the bike (and rider, and stuff attached to the bike) is in motion, it tends to stay
in motion, and if you make a mistake piloting the vehicle, or failed to maintain the bike,
kinetic energy is going to slam you into something – a car, the pavement, etc. (Cars have
kinetic energy also – a lot more that bikes do! So caution around cars is a first priority.)
We have worked hard to provide a quality product, well designed and free from defects.
That’s our responsibility. You have a responsibility also – learn how to operate your new
bike safely and correctly. Keep it in good shape by maintaining it and making sure that
anyone who uses it knows how to operate it safely.
Please take the time to read and understand the following warnings and cautions.
Throughout this manual we will attempt to reinforce the guidelines that we have
summarized below. This is important. If your bike is used by others, please show this
section to them so that they are aware of these important guidelines to help avoid
accidents and reduce the severity of injuries when they occur. Thank you.
•Helmets: There is no single factor that works better at reducing the severity of
injuries sustained in bicycle accidents more than a quality bicycle helmet. Please
don’t ever ride your bike without one. You won’t look like a geek; you’ll look
like someone who cares about himself. (Lance Armstrong does NOT look like a
geek, and he is usually seen in a helmet.)
•It’s not a tandem: Your bike was engineered to carry one (1), [that is a single
rider,] person safely. The rack on the back is for luggage or a battery, not your
buddy. Overloading the bike with a second rider is a bad idea that can lead to
severe injury or death! (Yeah, the bad words again.) Not to mention the fact that
you will severely impact the performance of the bike. Talk your buddy into
buying his own Tres Terra Bike.
4

•It’s the law; obey it: Obey all traffic laws. Always ride on the right (that’s
RIGHT as opposed to LEFT – but it’s also RIGHT as in CORRECT) side, with,
not against, traffic. The STOP sign and light means you too. Bike riders always,
always, always lose when a bike and a car collide –no matter who was “in the
right”. (We call this being “dead” right.)
•Look out! Unfortunately, a motorist that has successfully parallel parked his/her
car is not always thinking about the cyclist fast approaching from behind. An
impact with a car door suddenly opened into your path will ruin your day.
•Weather: Bikes brakes don’t work well when they’re wet. Don’t ride in the rain
or snow if you can avoid it. If you forgot to watch the Weather Channel before
leaving home, and you get caught in the rain, please be aware that distance to stop
your bike may double or triple over the distance that it takes under dry conditions.
Ride more slowly, and anticipate your stops by applying the brakes MUCH
earlier. Also don’t forget that the roads are a lot slipperier when they’re wet.
Those skinny little bike tires don’t grip wet pavement as well as dry pavement.
So take the corners carefully.
•Night time: Motorists have a hard time seeing you when the sun goes down. We
make the bike easier to see with lights and reflectors, but you’re still not as visible
as in the daytime. If you must ride at night, wear light-colored clothing,
preferably with reflective strips. Buy a flashing LED light and use it. Make sure
that the reflectors on your bike are properly positioned and clean. Use the
headlight so that you can see the obstacles in your path. Ride more slowly. Be
wary of cars and assume that they do not see you.
•Maintenance: It worked fine when we put it in the box: Please maintain your
bike. There are instructions here in the manual. We’re smart guys, but we haven’t
figured out how to make a bike that takes care of itself. Check the brakes and the
tires and the tightness of all those important fasteners before each and every ride.
Pretend that you’re a pilot doing a walk-around of his airplane before taking-off.
The pilot knows that his life depends on the airworthiness of his plane; your life
depends on the roadworthiness of your bike. Please have your bike checked by a
qualified bike mechanic AT LEAST once a year. It’s a small investment in your
well-being.
•Battery: We have equipped your Ultra Motor electric bike with a state-of-the-art
lithium ion battery. This is the same battery chemistry that powers your cell
phone and laptop, but on a bigger scale to drive your bike. Lithium ion batteries
feature the highest gravimetric energy density available. (How’s that for
engineering techno-speak? What it means is that you get more power per pound
of battery than on any other e-bike.) We have built in a sophisticated battery
management system (BMS) that helps control all that energy. But the battery
requires care and maintenance to insure that it will perform safely and reliably for
many miles of riding. We have devoted an entire chapter of this manual to the
5

battery. Please read and understand this important information. As always, if you
have any questions, please don’t hesitate to contact us.
IN SUMMARY:
1. WEAR A HELMET EACH AND EVERY TIME YOU GET ON THE BIKE!
2. Don’t carry passengers.
3. Obey the Rules of the Road.
4. Ride defensively! Watch out for both moving and stationary cars.
5. Be careful in wet conditions. Braking and traction are significantly reduced.
6. Don’t ride at night.
7. Please, please maintain your bike.
8. Care for your battery.
9. Read and study the rest of this manual.
Important Symbols and Term
This Owner’s Manual uses the following symbols and terms to call your attention to
Warnings, Cautions and Notes:
Term: WARNING
Meaning: This term calls attention to a Warning. A Warning indicates a
potentially hazardous situation which, if not avoided, could result in bodily injury
or death, in addition to property damage. Read the text accompanying the
warning to be aware of the specific hazard.
Term: CAUTION
Meaning: This term calls attention to a Caution. A Caution indicates a
potentially hazardous situation which, if not avoided, may result in damage to
equipment or inadvertent system failure. Read the text accompanying the Caution
to be aware of the specific hazard and avoid damage or system failure.
Term: Note:
Meaning: This term calls attention to a Note. The text accompanying a Note
provides helpful or other important related information.
Please read, understand and follow all Warning, Caution and Note notices on your
Tres Terra electric bike and those included in this Manual.
Related Manuals: Many of the components that are installed on your Tres
Terra electric bike have manuals that provide operating and maintenance
instructions regarding those particular components. Specifically, there are
manuals included for the front hub quick release mechanism, the dynamo hub
head light and tail light system, and the cycle computer (if equipped). Please read
and understand the important information contained in those manuals as well.
6

II. Recording Your Bike’s Important Serial Numbers:
Your bike and certain key components have unique serial numbers. We urge you to
record these serial numbers for warranty purposes or in case your bike is ever lost or
stolen.
Bike: The bike’s serial number is located on the underside of the frame near the pedal
crank:
Bike serial number: ______________________________
Motor: The motor serial number is on a label attached to the left side of the motor hub:
Motor serial number: _____________________________
Battery: The battery serial number is on a label affixed to the right side of the battery:
Battery serial number : _____________________________
Please also record this other important information:
Date of Purchase: ______________________________________________
Selling Dealer: ______________________________________________
Street Address: ______________________________________________
City/State/Zip: ______________________________________________
Telephone: ______________________________________________
Salesman: ______________________________________________
Please keep this information is a safe place for future reference.
We have included with this manual an Owner Registration Card. We ask that you fill out
and return this card immediately. This will allow us to notify you regarding important
product information that may become available in the future. Please complete the card
and mail it today.
You may also register with us at our web site: www.tresterra.com.
Thank you!
7

III. Specifications*
•Performance
oMaximum speed (motor only): 20 miles/hour (32 kilometers/hour)*
oMaximum range: up to 20 miles (32 kilometers)*
oGross payload: 275 lbs (125 kilograms)
*Note: many factors affect speed and range capabilities of the Tres Terra
electric bike. Terrain, average speed, rider weight, tire inflation pressure, winds,
hills, etc., all have an impact on how far and how fast you go. Please see the
Operations section of this Owner’s Manual for more details.
•Bicycle
oFrame (Europa): Steel with high impact ABS fairings
oFrame size (Europa): 14.5”
oSuspension: Ultra Motor shock-absorbing front fork
(80mm travel), suspension seat post
oTires: 26” x 1.95” pneumatic
oTubes: 26”
oDerailleur (Europa): Shimano Alivio 7-speed with twist-grip
shifter
oBrakes: Tektro linear-pull caliper
oSaddle: Ultra Motor comfort gel
•Motor
oType: Heinzmann brushed hub motor
oPower rating: 400-watts
•Battery
oModel: Welldone
oChemistry: Lithium Ion
oConfiguration: 10 prismatic cells connected in series
oRated voltage: 37 Volts
oRated capacity: 10Ah (370 watt-hrs)
oWeight: 3.9 kg (8.6 lbs)
oMax discharge current: 20A
oOver-discharge limits: 2.30V±0.025V per cell
oPack cut-off voltage: 30V±4V
oCharge method: CC/CV (Constant Current/Constant Voltage）
oOver-charge limits: 4.25V±0.025V per cell
oMax charge current: 5A (0.5C5)
oMaxi charge voltage: 42V
oInternal resistance: ≤150mΩ
•Charger
oModel: HP8204L3(10S)/36V2A
oDimensions: 188mm x 93mm x 53mm
oWeight: 850g (1.8lb)
oInput voltage: AC110V~264V/47~63HZ
oOutput voltage: 42±0.5VDC
oOutput amperage: 2.0±0.2A
oAC line fuse rating: 10 amp
•Wheels and tires
8

oRims: 26” Alex DM-18 extruded aluminum w.
machined brake surfaces
oTires (Europa): 26” x 1.95” Kenda w. thorn-resistant tubes
and puncture-resistant tire liners
•Standard features:
oPower
400-watt hub motor
Digital motor controller
370 watt-hr lithium ion battery with integrated battery management
system
Battery charger
Twist-grip throttle
State-of-charge indicator
Cruise control
Brake lever cut-off switches
oSecurity
Key-lock ON/OFF switch
Locking battery compartment
oSafety
Shimano dynamo front hub
Halogen headlight; LED tail light
Full reflector package
Retro-reflective accent trim
Tektro linear pull caliper brakes
Audible signaling device (bell)
oComfort
Suspension front fork
Suspension seat post
Gel saddle
Quick release seat height adjustment mechanism
Adjustable handlebar stem
oConvenience
Alloy rear rack
CatEye cycle computer
Full fenders
Aluminum “Y-style” center-stand kickstand
*Note: Specifications are subject to change without notice.
9

V. Europa Component Chart
1. Saddle (seat) 16. Front wheel reflector
2. Shock absorbing seat post 17. Pedal
3. Quick-release seat post clamp 18. Crank arm
4. Battery compartment door 19. Chain ring
5. Battery compartment key-lock 20. Kick stand
6. Battery compartment latches (2) 21. Drive chain
7. Adjustable handlebar stem 22. Rear tire/wheel
8. Audible warning device (bell) 23. Rear wheel reflector
9. Throttle/state-of-charge
indicator/On/Off key switch
24. Rear derailleur
25. Rear hub motor
10. Front reflector 26. Rear reflector
11. Head light 27. Rear fender (mud guard)
12. Front fender (mud guard) 28. Tail light
13. Front tire/wheel 29. Rear carrier
14. Dynamo front hub 30. Rear linear-pull caliper brake
15. Front tire/wheel
10

VI. Unpacking and Assembly
IMPORTANT NOTICE: All Ultra Motor electric bicycles are intended to be built
by a professional bicycle mechanic. To insure your total satisfaction, we strongly
advise that you bring your bicycle to a professional to be built.
Nevertheless, we are including assembly and adjustment instructions in the event you
need to repair or replace a component.
As always, if you do not understand any instruction, or are uncertain about the assembly
and/or adjustment of the bike, please contact your bike shop.
WARNING: Failure to properly assemble and adjust your bike prior to use
may result in an accident resulting in death, serious injury and/or property
damage.
WARNING: There are no user serviceable elements incorporated into the
motor, motor controller, battery, battery charger, throttle, or wiring harness
of your Tres Terra electric bicycle. DO NOT ATTEMPT TO
DISASSEMBLE OR ADJUST ANY OF THESE COMPONENTS. Doing so
may cause extensive damage to these components, will void your warranty,
and may cause a hazardous condition.
Note: Throughout this manual, we will refer to the “right side” and the “left
side” of the bike. For clarification purposes, “left” and “right” are relative to
your position when sitting on the bike in the normal riding position.
Required tools for assembly:
You will need the following tools to assemble your bike:
•5 mm hex wrench
•6 mm hex wrench
•Small Phillips screwdriver
•17 mm open end wrench for the pedals
•Light grease (white lithium grease or equivalent)
In addition, the following tools are helpful when unpacking the bike:
•Pliers
•Side cutters (for cutting the zip ties used to pack the bike)
Unpacking:
The lithium ion battery for your Ultra Motor bike is shipped separately from the bike.
The battery charger, however, is packed in one of the two accessory boxes packed into
the bike box.
Note: It is important to fully charge the battery prior to first use. Unpack the
battery and battery charger, and charge the battery per the instructions found in
11

the Battery & Charger Instruction Manual (and in Section VIII of this manual) for
at least 8 hours before using the bike for the first time.
Carefully unpack your Ultra Motor bike. The top of the carton can be opened by pulling
the stapled and glued flaps. It is recommended that the staples used to secure the flaps be
completely removed (with a pliers, if necessary), to avoid the possibility of scratching
yourself or the bike as it is extracted from the carton.
With the top flaps open, and the staples removed, carefully lift the bike up and out of the
box. The bike is cumbersome, so it is best to ask a friend to help lift the bike out of the
box. If no one is available, the bike box may be laid flat on the ground such that you can
remove the bike from the box horizontally. If you use this method, take care to avoid
scratching any unprotected surface of the bike on the ground.
When the bike is out of the box, lay it on a tarp or blanket to avoid scratching any
unprotected surface while you remove the packing material from the bike. Remove the
two accessory boxes from the bike carton.
Using the side cutters, clip the zip ties that hold various components to the frame. Clip
only those zip ties that are used to attach components to the frame, or those that are used
to keep components from moving during shipment. There are zip ties installed on the
bike that are used to manage electrical and control cable routing on the bike. DO NOT
clip those zip ties as they are necessary for the safe operation of the bike.
Note:Rule of thumb: the zip ties used to secure the components for shipping are
not trimmed. The ties that must remain on the bike are trimmed of excess length.
Only clip those zip ties that are not trimmed.
Remove all of the protective wrapping from the bike and discard.
Identify the various Parts and Components of your Ultra Motor Bike
Please refer to the illustrations on page 10 or 11 for an explanation of the various parts of
your Tres Terra electric bike.
Install the Front Fender
This procedure may require the assistance of a friend to hold the front fender in place
while you attach it to the bike.
Using the 5mm hex wrench, remove the bolt and washer that holds the front head light to
the front fork. Set bolt and washer aside. Position the head light so that it is out of the
way. Using the 5mm hex wrench, remove the two bolts and washers from either side of
the front fork tubes. Set the bolts and washers aside.
Position the front fender in between the fork legs, with the angle bracket on the top of the
fender. Position the fender braces (the long wire pieces attached to the fender with an
eyelet at the end) in proximity to the two threaded holes on either side of the fork tubes.
12

Re-install the two bolts/washers through the eyelets on each fender brace and into the
threaded holes in the fork tubes. Tighten each bolt, being careful not to over-tighten,
using the 5mm hex wrench.
Re-install the head light, inserting the attachment bolt and washer through head light
bracket, then through the angle bracket on top of the fender, screwing it into the threaded
hole at the top of the fork yolk. Tighten the bolt securely using the 5mm hex wrench.
Install the Front Wheel
The bike is shipped with the front wheel removed. To install the front wheel, please
follow these steps below.
WARNING: Your Ultra Motor electric bicycle is equipped with a quick
release front (only) hub to facilitate wheel removal and installation. Please
follow the instructions provided for the quick release mechanism to insure
proper use. Failure to properly install this quick release front hub may
result in the inadvertent release of the front wheel while you are riding the
bicycle. This occurrence can result in serious injury or death, and property
damage. If you are uncertain about any aspect of the assembly and
adjustment of your bike, seek help from a qualified mechanic. A
comprehensive manual for the use and care of your quick release provided
by Shimano (the manufacturer of the front hub) has been added as a
supplement to your Owner’s Manual. Read this excellent reference for
additional instructions regarding this important product feature.
1. Locate the quick release mechanism that is packed in the accessory kit. See photo
below.
2. Insert the quick release mechanism into the front dynamo hub. Be sure that the
centering springs are positioned as shown, with the smaller ends pointing to the
middle of the hub. Be sure that the quick release lever is on the opposite side of
the hub from the larger of the two flanges as shown. Thread the adjusting knob
only several turns onto the spindle.
3. Position the wheel in the front fork so that the quick release lever is located on the
left side of the front fork.
4. Move the quick release lever to the OPEN position (lever curves away from the
hub) and position the wheel in the front fork so that the axle is located in the fork
drop-outs.
13

5. Turn the adjusting nut on the right side of the hub clockwise such that you feel
resistance to closing the lever when the lever is parallel to the centerline of the
hub.
6. Firmly grip the fork with your left hand, and push the lever until it is at a 90º
angle to the centerline of the hub. The lever is securely tightened when it takes a
significant amount of force to position it in the closed position. The appropriate
amount of force necessary to close the lever when it is properly adjusted will
result in an imprint of the lever in the palm of your hand. Once closed, the
“OPEN” designation on the lever will no longer be visible. When properly
closed, it is impossible to move unless you open it again by reversing the steps
above. If you can easily move it, open the quick release lever and tighten the
adjusting nut another 180º and try again.
7. Plug the lighting system power connector onto the dynamo hub connector as
shown in the photo below:
Align and Adjust the Front Brake Pads
The rear brakes are set-up and adjusted for you at the factory. However, the front brake
pads must be aligned and adjusted in the front caliper brake.
1. Pinch the brake calipers together and pull the end cap and the cable guide out of
the linkage slot.
2. Using a 5mm hex wrench, loosen the brake pad fixing bolt.
3. Rotate the brake pad so that the curvature of the brake pad aligns with curvature
of the wheel rim (see photo below).
4. Press each caliper brake arm toward the center of the bike, and align the caliper
brake pad vertically in the slot so that the pad fully contacts the side wall of the
wheel rim.
5. Tighten the brake pad fixing bolt securely.
WARNING: If you are unsure about this brake set-up and adjustment
procedure, please take your bike to a qualified bike mechanic, and ask for
14

assistance in adjusting the brakes. Improperly adjusted brakes may cause
reduced braking performance, leading to an accident that could result in
serious injury or death, and property damage. DO NOT ride your bike if
you are not confident that the brakes are working properly.
Install the Handlebar and Stem
1. Insert the handlebar stem into the steerer tube of the front fork as shown.
2. Align the handlebar so that the handlebar is perpendicular to the direction of
travel.
3. Securely tighten the wedge bolt (located in the body to the handlebar stem) with a
6mm hex wrench.
4. Replace the rubber cap over the wedge bolt.
Adjust the Handlebar Stem
Your Ultra Motor electric bicycle is equipped with an adjustable handlebar stem. This
feature allows you to set the position of the handlebar stem for optimal riding comfort.
To adjust the stem:
1. Using a 6mm hex wrench, loosen the fixing bolt 1 full revolution (see photo
below):
15

2. Rotate the stem up or down to the desired position.
3. Securely retighten the fixing bolt with the 6mm hex wrench.
Install the Seat and Seat Post
Some models of Ultra Motor electric bikes are packaged with the seat and seat post
removed from the frame.
1. Open the quick release seat post clamp.
2. Insert the seat post into the frame tube.
3. Position the seat post into the frame tube far enough so that the “Maximum
Height” mark is hidden inside the frame.
WARNING: Riding the bicycle with the seat post extended beyond the
Maximum Height mark on the seat post can overstress the frame potentially
causing frame failure. Frame failure could cause a loss of control resulting in
serious injury or death, and property damage. Always check to insure that
the “Maximum Height” mark on the seat post is hidden inside the frame. If
you cannot raise the seat high enough to ride the bicycle comfortably, contact
your local bike dealer for a longer seat post.
4. Securely close the seat post quick release. A properly adjusted seat post clamp
will prevent rotation of the seat post when the bike is in use. If, after you have
closed the seat post quick release lever, you can force the seat to rotate, open the
seat post quick release and turn the adjusting nut on the left hand side of the quick
release lever ½ turn, close the lever, and test the retention of the seat post again.
Repeat this process until you can no longer move the seat.
WARNING: An improperly secured seat post could lead to loss of control of
the bicycle while riding, causing an accident that may result in serious injury
or death, and property damage.
Install the Pedals
Two pedals (a left pedal and a right pedal) are supplied with your bike. Each pedal is
DIFFERENT. The right pedal has conventional right-hand threads cut into the part of the
axle that screws into the crank arm. The left pedal has left-hand threads. It is very
important that the pedals be installed on the correct side.
16

CAUTION: Attempting to screw the left pedal into the right crank arm (or visa
versa) will damage the internal threads of the crank arm. This damage is not
‘fixable’. The crank arm will have to be replaced.
WARNING: An improperly installed pedal may fall off the bike while the
bike is in use. This situation may cause an accident resulting in serious
injury or death, and property damage. Insure that your pedals are properly
installed and tight before each ride.
Note:We have placed a small label on each crank arm to assist in making sure
that you install each pedal on the correct side. Obviously “R” denotes “Right”,
while “L” denotes “Left”. Also note that there is an “R” stamped on the spindle
of the right-hand pedal, and there is an “L” stamped on the left-hand pedal.
Please insure that you install the right pedal on the right-hand side, and the left
pedal on the ‘left hand side.
Prior to installing each pedal, lightly coat the threads of the pedal axle with light grease.
This will make screwing the pedal into the crank arm a little easier, and will help prevent
corrosion in the future.
When installing the “Right” pedal, screw the threaded section of the pedal spindle into
the crank arm turning the spindle in a CLOCKWISE direction.
When installing the “Left” pedal, screw the threaded section of the pedal spindle into the
crank arm turning the spindle in a COUNTER CLOCKWISE direction.
Screw each pedal as far as you can into the crank arm with your fingers. Securely tighten
the pedals with a 17mm open end wrench.
Install the Cycle Computer
Please use the instruction sheet included with your cycle computer for instructions on the
installation and use of your cycle computer.
17

VII. Operation
Before you ride:
Use the following checklist to insure that your Ultra Motor electric bike is ready for safe
and enjoyable use.
•Quick releases: Make sure that your front wheel quick release and your seat
height adjustment quick release are properly adjusted and tight.
WARNING: Failure to properly adjust and lock your front wheel quick release
may result in the inadvertent separation of the front wheel while you are riding
the bicycle. This occurrence can result in serious injury or death, and property
damage. Please refer to the instructions on beginning on page 14 for the proper
installation and adjustment of your front quick release hub.
WARNING: Failure to properly adjust and lock your quick release seat post
clamp may result in inadvertent movement of the seat while you are riding your
Tres Terra electric bike. This occurrence could result in the loss of control of
the bicycle resulting in an accident that could cause serious injury or death, and
property damage. Please refer to the instructions on Page 17 for the proper
installation and adjustment of your quick release seat post clamp.
•Wheels: The front and rear wheels should be centered in the fork and frame.
Wheels should be checked regularly for proper spoke tension and rim alignment.
Do not ride your Tres Terra electric bicycle if it has broken or missing spokes.
Wheels should rotate smoothly without wobbling from side-to-side or up-and-
down. Check the hub bearing adjustment periodically by lifting the wheel off the
ground and spinning it.
Note: The rear wheel turns in the forward direction easily, but with considerable
resistance in the reverse direction. This is normal and due to the gear mechanism
incorporated into the motor hub.
To check the adjustment of the hub bearings, try to move the rim from side-to-
side between the fork or frame. No lateral movement should occur. If you detect
lateral movement, the hub bearings must be adjusted or replaced. The rims must
be smooth, without cracks, bulges or flat spots. Rims should be clean and free
from dirt, grease or other contaminants. Periodically clean the rims with a
solvent, such as denatured alcohol. DO NOT OIL the rims as this will affect
braking performance. Take the bike to a qualified bike mechanic to repair and/or
adjust your wheels if necessary.
•Tires: Your Ultra Motor bicycle tires normally lose pressure over time. An
under inflated tire can cause premature tire failure, and will require significantly
more energy (electric and human) to propel the bike. Low tire pressure will have
a significant negative impact on range under electric power. Insure that both front
and rear tires are inflated to the recommended tire pressure indicated on the
sidewall of the tire. Check the tires for any damage or unusual wear. The tire
18

should be properly seated in the rim and the fit of the tire bead in the rim should
be periodically checked. Insure that the tire is not cracked or excessively worn.
Check for foreign objects in the tread, and that the valve stem is straight in the
rim. Damaged or worn tires should be replaced immediately. Take the bike to a
qualified bike mechanic to repair and/or replace your tires if necessary.
•Lights and Reflectors: Your Ultra Motor electric bicycle comes equipped with a
halogen head light, an LED tail light and a high performance hub dynamo to
power them. Please insure that your lighting system is in proper working order in
case you get caught out after dark. Further, your bike comes equipped with eight
(8) reflectors (front handle bar, rear fender, front wheel, rear wheel and two each
on the left and right pedals) to make you more visible at night. Please insure that
those reflectors are in place, properly positioned and clean before each ride.
•Drive chain: Your Ultra Motor electric bicycle is equipped with a high quality
roller chain that needs to be cleaned and lubricated regularly.
•Brakes: Check your brakes before each ride.
WARNING: Riding with brakes that are damaged, excessively worn and/or
misadjusted will significantly degrade the stopping capabilities of your bicycle.
This condition could lead to an accident resulting in serious injury or death, and
property damage. Please refer to the instructions on Page 15 for the proper
installation and adjustment of your brakes.
WARNING: Bicycle caliper brakes lose effectiveness when wet. Avoid riding in
wet weather. If it is unavoidable, be aware of the fact that stopping your bicycle
will require extra distance. Ride more slowly, keep a greater interval between
yourself and other traffic, and begin braking sooner than normal. Failure to
take these precautions could lead to an accident causing serious injury or death,
and property damage.
Test the function of your brakes by riding your bicycle in an area free from traffic
and obstructions prior to every ride.
•Brake cut-off switches: To maximize the effectiveness and efficiency of the
braking system, and to save battery power, your Tres Terra electric bike uses a
system that turns power to the motor “OFF” when the brakes are applied. Check
the function of the brake cut-off switches before each ride. To do so, turn the
power “ON”, lift the rear wheel off the ground by pushing the bike onto the
lowered kickstand, and actuate the throttle.
CAUTION: Insure that there is no one standing close to the rear wheel, and that
all clothing and other objects are a safe distance away from the rear wheel when
performing this test. The rear wheel will spin at high speed during this test. If
necessary, ask a friend to assist with this test.
With the rear wheel off the ground, actuate the twist grip throttle on the right side
of the handlebar. The electric motor will spin the rear wheel. With the throttle
19

partially actuated, alternately apply the left and right brake levers. When the
brake lever is applied, power to the motor should turn “OFF”. Power will resume
when the brake lever is released, assuming that you continue to actuate the
throttle.
Note: Fully applying the right brake lever will not only turn off the motor, the
brake should also stop the spinning wheel.
•Battery: Use ONLY the battery supplied with your Ultra Motor electric bicycle.
CAUTION: Use of any battery not supplied with your Ultra Motor electric
bicycle WILL void the warranty and may cause damage to the electrical system
of the bike and the hub motor. Use only the battery supplied with the bike, or a
battery provided by Ultra Motor as a replacement for the battery supplied with
the bike.
•Note: Prior to its first use, charge the battery supplied with your bike for at least
eight (8) hours.
WARNING: Use only the charger supplied with your battery. If you use any
other battery charger, you will void the warranty, you may damage the battery
and you could cause a fire that would result in property damage and possibly
cause injury or death. Follow the instructions for battery charging in Section
VIII, and in the Battery & Charger Instruction Manual supplied with your bike.
Note: If you plan to store your bike in excess of thirty (30) days, please follow the
battery storage guidelines given in the Battery Storage instructions in Section
VIII, and in the Battery & Charger Instruction Manual supplied with your bike.
WARNING: Failure to properly use, charge and store the battery supplied with
your Tres Terra electric bike will void the warranty and may cause a hazardous
situation. Please read and follow all instructions for the use and care of the
battery provided with your bike.
Riding your Ultra Motor electric bicycle
If you have not already done so, install the battery.
oUsing the battery compartment security key, open the battery
compartment lock. Rotate the two (2) locking tabs counter clockwise,
and open the battery compartment.
oOpen the latch that holds the battery retention door closed. Open the
battery retention door.
oCarefully holding the battery in your right hand, plug the battery
connecting cord into the battery power receptacle as shown below.
20