Triumph Bonneville T120 User manual

Owner's Handbook
Street Twin, Thruxton, ThruxtonR and
BonnevilleT120
This handbook contains information on the Triumph Street Twin, Thruxton,
ThruxtonR and BonnevilleT120 motorcycles. Always store this Owner's Handbook
with the motorcycle and refer to it for information whenever necessary.
The information contained in this publication is based on the latest information
available at the time of printing. Triumph reserves the right to make changes at any
time without prior notice, or obligation.
Not to be reproduced wholly or in part without the written permission of Triumph
Motorcycles America Limited.
© Copyright 09.2015 Triumph Motorcycles America Limited.
Publication part number 3852288-USEN issue 1.
1 • 10/13/2015
1

2
TABLE OF CONTENTS
This handbook contains a number of different sections. The table of contents below
will help you find the beginning of each section where, in the case of the major
sections, a further table of contents will help you find the specific subject required.
Foreword .............................................................................................................................................................. 3
Safety First.......................................................................................................................................................... 6
Warning Labels.................................................................................................................................................12
Parts Identification........................................................................................................................................ 14
Serial Numbers ................................................................................................................................................22
General information ......................................................................................................................................23
How to Ride the Motorcycle ..................................................................................................................... 61
Accessories, Passengers and Loading.................................................................................................72
Maintenance.....................................................................................................................................................75
Cleaning ............................................................................................................................................................ 122
Care of Leather Products......................................................................................................................... 125
Storage.............................................................................................................................................................. 126
Specifications .................................................................................................................................................128
Index...................................................................................................................................................................140

Foreword
3
FOREWORD
Warnings, Cautions and
Notes
Throughout this owner's handbook
particularly important information is
presented in the following form:
Warning
This warning symbol identifies special
instructions or procedures, which if
not correctly followed could result in
personal injury, or loss of life.
Caution
This caution symbol identifies special
instructions or procedures, which, if
not strictly observed, could result in
damage to, or destruction of,
equipment.
Note:
• This note symbol indicates points of
particular interest for more
efficient and convenient operation.
Warning Labels
At certain areas of the motorcycle, the
symbol (left) can be seen. The symbol
means 'CAUTION: REFER TO THE
HANDBOOK' and will be followed by a
pictorial representation of the subject
concerned.
Never attempt to ride the motorcycle or
make any adjustments without
reference to the relevant instructions
contained in this handbook.
See page12 for the location of all
labels bearing this symbol. Where
necessary, this symbol will also appear
on the pages containing the relevant
information.
Maintenance
To ensure a long, safe and trouble free
life for your motorcycle, maintenance
should only be carried out by an
authorized Triumph dealer.
Only an authorized Triumph dealer will
have the necessary knowledge,
equipment and skills to maintain your
Triumph motorcycle correctly.
To locate your nearest Triumph dealer,
visit the Triumph website at
www.triumph.co.uk or telephone
Triumph Motorcycles America Limited on
[phone].

Foreword
4
Noise Control System
Tampering With the Noise Control
System is Prohibited.
Owners are warned that the law may
prohibit:
1. The removal or rendering
inoperative by any person other
than for purposes of maintenance,
repair or replacement, of any device
or element of design incorporated
into any new vehicle for the
purpose of noise control prior to its
sale or delivery to the ultimate
purchaser or while it is in use and,
2. the use of the vehicle after such
device or element of design has
been removed or rendered
inoperative by any person.
Tyres
With reference to the Pneumatic Tires
and Tubes for Automotive Vehicles
(Quality Control) Order, 2009, Cl. No. 3 (c),
it is declared by M/s. Triumph
Motorcycles Ltd. that the tires installed
on this motorcycle meet the
requirements of IS 15627: 2005 and
comply with the requirements under
Central Motor Vehicle Rules (CMVR),
1989.
Owner's Handbook
Thank you for choosing a Triumph
motorcycle. This motorcycle is the
product of Triumph's use of proven
engineering, exhaustive testing, and
continuous striving for superior
reliability, safety and performance.
Please read this owner's handbook
before riding in order to become
thoroughly familiar with the correct
operation of your motorcycle's controls,
its features, capabilities and limitations.
This handbook includes safe riding tips,
but does not contain all the techniques
and skills necessary to ride a motorcycle
safely.
Triumph strongly recommends that all
riders undertake a safety course
approved by the Motorcycle Safety
Foundation to ensure safe operation of
this motorcycle. Information about the
nearest Motorcycle Safety Foundation
course to you can be obtained by calling
the following nationwide toll free
number: 800-447-4700, or by writing to
the Motorcycle Safety Foundation at: 2,
Jenner Street, Irvine, California 92718. To
ensure a long and trouble free life for
your motorcycle, maintenance should be
carried out as described in this manual
by an authorized Triumph dealer.

Foreword
5
This handbook is available from your
local dealer in:
• English
• US English
• French
• German
• Italian
• Dutch
• Spanish
• Portuguese
• Swedish
• Japanese
• Thai.
Warning
This owner's handbook, and all other
instructions that are supplied with
your motorcycle, should be considered
a permanent part of your motorcycle
and should remain with it even if your
motorcycle is subsequently sold.
All riders must read this owner's
handbook and all other instructions
which are supplied with your
motorcycle, before riding, in order to
become thoroughly familiar with the
correct operation of your motorcycle's
controls, its features, capabilities and
limitations. Do not lend your
motorcycle to others as riding when
not familiar with your motorcycle's
controls, features, capabilities and
limitations can lead to an accident.
Talk to Triumph
Our relationship with you does not end
with the purchase of your Triumph. Your
feedback on the buying and ownership
experience is very important in helping
us develop our products and services
for you. Please help us by ensuring your
dealership has your email address and
registers this with us. You will then
receive an online customer satisfaction
survey invitation to your E-mail address
where you can give us this feedback.
Your Triumph Team.

Safety First
6
SAFETY FIRST
The Motorcycle
Warning
This motorcycle is designed for on-
road use only. It is not suitable for off-
road use.
Off-road operation could lead to loss of
control of the motorcycle resulting in
an accident causing injury or loss of
life.
Warning
This motorcycle is not designed to tow
a trailer or be installed with a sidecar.
Fitting a sidecar and/or a trailer may
result in loss of control and an
accident.
Warning
This motorcycle is designed for use as
a two-wheeled vehicle capable of
carrying a rider on his/her own, or a
rider and one passenger (subject to a
passenger seat being installed).
The total weight of the rider, and any
passenger, accessories and luggage
must not exceed the maximum load
limit of 463lb (210kg).
Fuel and Exhaust Fumes
Warning
GASOLINE IS HIGHLY FLAMMABLE:
Always turn off the engine when
refueling.
Do not refuel or open the fuel filler cap
while smoking or in the vicinity of any
open (naked) flame.
Take care not to spill any gasoline on
the engine, exhaust pipes or mufflers
when refueling.
If gasoline is swallowed, inhaled or
allowed to get into the eyes, seek
immediate medical attention.
Spillage on the skin should be
immediately washed off with soap and
water and clothing contaminated with
gasoline should immediately be
removed.
Burns and other serious skin
conditions may result from contact
with gasoline.
Warning
Never start your engine or let it run
for any length of time in a closed area.
The exhaust fumes are poisonous and
may cause loss of consciousness and
death within a short time. Always
operate your motorcycle in the open-
air or in an area with adequate
ventilation.

Safety First
7
Helmet and Clothing
Warning
When riding the motorcycle, both rider
and passenger must always wear a
motorcycle helmet, eye protection,
gloves, boots, trousers (close fitting
around the knee and ankle) and a
brightly colored jacket. Brightly colored
clothing will considerably increase a
rider's (or passenger's) visibility to
other operators of road vehicles.
Although full protection is not possible,
wearing correct protective clothing can
reduce the risk of injury when riding.
Warning
A helmet is one of the most important
pieces of riding gear as it offers
protection against head injuries. You
and your passenger's helmet should be
carefully chosen and should fit you or
your passenger's head comfortably
and securely. A brightly colored helmet
will increase a rider's (or passenger's)
visibility to other operators of road
vehicles.
An open face helmet offers some
protection in an accident though a full
face helmet will offer more.
Always wear a visor or approved
goggles to help vision and to protect
your eyes.
cbma
When choosing a helmet, always look for
a DOT (Department of Transport) sticker
indicating that the helmet has DOT
approval. Do not buy a helmet without
DOT approval.
Parking
Warning
Always turn off the engine and remove
the ignition key before leaving the
motorcycle unattended. By removing
the key, the risk of use of the
motorcycle by unauthorized or
untrained persons is reduced.
When parking the motorcycle, always
remember the following:
Engage first gear to help prevent the
motorcycle from rolling off the stand.
The engine and exhaust system will be
hot after riding. DO NOT park where
pedestrians, animals and/or children
are likely to touch the motorcycle.
Do not park on soft ground or on a
steeply inclined surface. Parking under
these conditions may cause the
motorcycle to fall over.
For further details, please refer to the
'How to Ride the Motorcycle' section of
this owner's handbook.

Safety First
8
Parts and Accessories
Warning
Owners should be aware that the only
approved parts, accessories and
conversions for any Triumph
motorcycle are those which carry
official Triumph approval and are
installed to the motorcycle by an
authorized dealer.
In particular, it is extremely hazardous
to install or replace parts or
accessories whose fitting requires the
dismantling of, or addition to, either
the electrical or fuel systems and any
such modification could cause a safety
hazard.
The fitting of any non-approved parts,
accessories or conversions may
adversely affect the handling, stability
or other aspect of the motorcycle
operation that may result in an
accident causing injury or death.
Triumph does not accept any liability
whatsoever for defects caused by the
fitting of non-approved parts,
accessories or conversions or the fitting
of any approved parts, accessories or
conversions by non-approved personnel.
Maintenance/Equipment
Warning
Consult your authorized Triumph
dealer whenever there is doubt as to
the correct or safe operation of this
Triumph motorcycle.
Remember that continued operation of
an incorrectly performing motorcycle
may aggravate a fault and may also
compromise safety.
Warning
Ensure all equipment that is required
by law is installed and functioning
correctly. The removal or alteration of
the motorcycle’s lights, mufflers,
emission or noise control systems can
violate the law. Incorrect or improper
modification may adversely affect the
handling, stability or other aspect of
the motorcycle operation, which may
result in an accident causing injury or
death.
Warning
If the motorcycle is involved in an
accident, collision or fall, it must be
taken to an authorized Triumph dealer
for inspection and repair. Any accident
can cause damage to the motorcycle
that, if not correctly repaired, may
cause a second accident that may
result in injury or death.

Safety First
9
Riding
Warning
Never ride the motorcycle when
fatigued or under the influence of
alcohol or other drugs.
Riding when under the influence of
alcohol or other drugs is illegal.
Riding when fatigued or under the
influence of alcohol or other drugs
reduces the rider's ability to maintain
control of the motorcycle and may lead
to loss of control and an accident.
Warning
All riders must be licensed to operate
the motorcycle. Operation of the
motorcycle without a license is illegal
and could lead to prosecution.
Operation of the motorcycle without
formal training in the correct riding
techniques that are necessary to
become licensed is dangerous and may
lead to loss of motorcycle control and
an accident.
Warning
Always ride defensively and wear the
protective equipment mentioned
elsewhere in this foreword. Remember,
in an accident, a motorcycle does not
give the same impact protection as a
car.
Warning
This Triumph motorcycle should be
operated within the legal speed limits
for the particular road travelled.
Operating a motorcycle at high speeds
can be potentially dangerous since the
time available to react to given traffic
situations is greatly reduced as road
speed increases. Always reduce speed
in potentially hazardous driving
conditions such as bad weather or
heavy traffic.
Warning
Continually observe and react to
changes in road surface, traffic and
wind conditions. All two-wheeled
vehicles are subject to external forces
which may cause an accident. These
forces include but are not limited to:
Wind draft from passing vehicles;
Potholes, uneven or damaged road
surfaces;
Bad weather;
Rider error.
Always operate the motorcycle at
moderate speed and away from heavy
traffic until you have become
thoroughly familiar with its handling
and operating characteristics. Never
exceed the legal speed limit.

Safety First
10
Warning
Ensure that you know and respect the
rules of the road. Read and observe
publications such as 'MOTORCYCLE
SAFETY', 'YOU AND YOUR
MOTORCYCLE, RIDING TIPS' and also
read and become familiar with the
contents of the MOTORCYCLE
HANDBOOK for your state.
Caution
This Triumph motorcycle is not
equipped with spark arresters.
Operation in forests, brush or grass
areas may violate state and local laws
and regulations.
Wobble/Weave
A weave is a relatively slow oscillation of
the rear of the motorcycle, while a
wobble is a rapid, possibly strong
shaking of the handlebar. These are
related but distinct stability problems
usually caused by excessive weight in
the wrong place, or by a mechanical
problem such as worn or loose bearings
or under-inflated or unevenly worn
tires.
Your solution to both situations is the
same. Keep a firm hold on the
handlebars without locking arms or
fighting the steering. Smoothly ease off
the throttle to slow gradually. Do not
apply the brakes, and do not accelerate
to try to stop the wobble or weave. In
some cases, it helps to shift your body
weight forward by leaning over the
tank.
Copyright © 2005 Motorcycle Safety
Foundation. All rights reserved. Used
with permission.
Handlebars and Footrests
Warning
The rider must maintain control of the
vehicle by keeping hands on the
handlebars at all times.
The handling and stability of a
motorcycle will be adversely affected if
the rider removes his hands from the
handlebars, resulting in loss of
motorcycle control and an accident.

Safety First
11
Warning
The rider and passenger must always
use the footrests provided, during
operation of the vehicle.
By using the footrests, both rider and
passenger will reduce the risk of
inadvertent contact with any
motorcycle components and will also
reduce the risk of injury from
entrapment of clothing.
Warning
Use of a motorcycle with bank angle
indicators worn beyond the maximum
limit will allow the motorcycle to be
banked to an unsafe angle. Therefore,
always replace the bank angle
indicator pegs before they are worn to
their maximum limit. Banking to an
unsafe angle may cause instability,
loss of motorcycle control and an
accident. Details of the bank angle
wear limits can be found in the
Maintenance and Adjustment section
on page105.
Warning
The bank angle indicators must not be
used as a guide to how far the
motorcycle may be safely banked. This
depends on many various conditions
including, but not limited to, road
surface, tire condition and weather.
Banking to an unsafe angle may cause
instability, loss of motorcycle control
and an accident.
Warning
When banking and the bank angle
indicator, attached to the rider's
footrest, makes contact with the
ground, the motorcycle is nearing its
bank angle limit. A further increase of
the banking angle is unsafe. Banking
to an unsafe angle may cause
instability, loss of motorcycle control
and an accident.
citc
1
1. Bank angle indicator

Warning Labels
12
WARNING LABELS
Warning Label Locations
The labels detailed on this and the following pages draw your attention to important
safety information in this handbook. Before riding, ensure that all riders have
understood and complied with all the information to which these labels relate.
R.P.M.
MAX LOAD
5 kg (11 lbs)
1 32 4
765
1. Headlight (page117)
2. Windscreen (if equipped) (page111)
3. Running-In (page58)
4. Panniers (if equipped) (page72)
5. Coolant (page83)
6. Daily Safety Checks (page59)
7. Tires (page105)

Warning Labels
13
Warning Label Locations (continued)
Caution
All warning labels and decals, with the exception of the Running-in label, are
installed to the motorcycle using a strong adhesive. In some cases, labels are
installed prior to an application of paint lacquer. Therefore, any attempt to remove
the warning labels will cause damage to the paintwork or bodywork.
21 3
4 5
1. Engine Oil (page80)
2. Helmet (page7)
3. Mirrors (page96)
4. Drive Chain (page88)
5. Tire Pressure Monitoring (if equipped)
(page40)

Parts Identification
14
PARTS IDENTIFICATION
Street Twin
1
2
3
4 5
6
7
8
91011
12
13
14
15
16
17
1. Front turn signal
2. Headlight
3. Clutch cable
4. Battery (beneath seat)
5. Owner’s Handbook (beneath seat)
6. Brake/tail light
7. Rear turn signal
8. Rear brake disc
9. Rear brake caliper
10. Coolant expansion tank
11. Coolant expansion tank cap
12. Side stand
13. Gear change pedal
14. Horn
15. Radiator
16. Front brake caliper
17. Front brake disc

Parts Identification
15
Parts Identification -
Continued
Street Twin
14
5
78910111213 6
23
1. Fuel tank
2. Coolant pressure cap (beneath fuel
tank)
3. Fuel filler cap
4. Front brake fluid reservoir
5. Front fork
6. Oil filler plug
7. Oil level sight glass
8. Rear brake pedal
9. Rear brake fluid reservoir (behind side
panel)
10. Adjustment tool (behind side panel)
11. Drive chain
12. Rear suspension unit
13. Muffler

Parts Identification
16
Parts Identification
Thruxton and Thruxton R
7
1
2
34 5
6
8
91011
12
13
14
15
1. Front turn signal
2. Headlight
3. Clutch cable
4. Battery (beneath seat)
5. Owner’s Handbook (beneath seat)
6. Brake/tail light
7. Rear turn signal
8. Rear brake disc
9. Rear brake caliper
10. Side stand
11. Gear change pedal
12. Horn
13. Radiator
14. Front brake caliper
15. Front brake disc

Parts Identification
17
Parts Identification -
Continued
Thruxton and Thruxton R
12
3
4
67
8
9
1011
12 5
13
14
1. Fuel tank
2. Fuel filler cap
3. Front brake fluid reservoir
4. Front fork
5. Oil filler plug
6. Coolant expansion tank
7. Oil level sight glass
8. Coolant expansion tank cap
9. Rear brake pedal
10. Rear brake fluid reservoir (behind side
panel)
11. Adjustment tools (behind side panel)
12. Drive chain
13. Muffler
14. Rear suspension unit

Parts Identification
18
Parts Identification
Bonneville T120
1
2
345
6
7
8
91011
12
13
14
15
16
17
1. Front turn signal
2. Headlight
3. Clutch cable
4. Battery (beneath seat)
5. Owner’s Handbook (beneath seat)
6. Brake/tail light
7. Rear turn signal
8. Rear brake disc
9. Rear brake caliper
10. Coolant expansion tank
11. Coolant expansion tank cap
12. Side stand
13. Gear change pedal
14. Horn
15. Radiator
16. Front brake caliper
17. Front brake disc

Parts Identification
19
Parts Identification -
Continued
Bonneville T120
12
3
4
67
8
9101112 5
1. Fuel tank
2. Fuel filler cap
3. Front brake fluid reservoir
4. Front fork
5. Oil filler plug
6. Oil level sight glass
7. Rear brake pedal
8. Rear brake fluid reservoir (behind side
panel)
9. Adjustment tool (behind side panel)
10. Drive chain
11. Rear suspension unit
12. Muffler

Parts Identification
20
Parts Identification
Street Twin
10
20
30
40
50
60
70
80
90
100
110
120
120
0
0
20
40
60
80
100
120
140
160
180
200
13
456
78
9
10
11
2
12
1. Clutch lever
2. Headlight dimmer switch
3. SCROLL button
4. Speedometer
5. Warning lights
6. Odometer/Information display screen
7. Front brake fluid reservoir
8. Front brake lever
9. Engine stop switch
10. Hazard button
11. Turn signal switch
12. Horn button