Triumph Street Twin 2018 User Manual

Owner's Handbook
Bonneville T100, Bonneville T120,
Bonneville T120 Ace, Bonneville T120 Diamond,
Speed Twin, Street Scrambler, Street Twin,
Thruxton and Thruxton R
This handbook contains information on the Triumph Bonneville T100, Bonneville T120,
Bonneville T120 Ace, Bonneville T120 Diamond, Speed Twin, Street Scrambler,
Street Twin, Thruxton and Thruxton R 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 Limited.
© Copyright 11.2018 Triumph Motorcycles Limited, Hinckley, Leicestershire, England.
Publication part number 3855598-US issue 1
1

Triumph Street Twin 2018 Specifications

General

Displacement	900 cc
Bore x Stroke	84.6 mm x 80 mm
Compression Ratio	10.55:1
Fuel System	Multipoint sequential electronic fuel injection
Exhaust	Brushed stainless steel 2 into 2 exhaust system with twin silencers
Final Drive	O-ring chain
Clutch	Wet, multi-plate assist clutch
Gearbox	5-speed
Frame	Tubular steel cradle
Swingarm	Twin-sided, tubular steel
Front Tyre	100/90-18
Rear Tyre	150/70 R17
Rear Suspension	KYB twin shocks with adjustable preload, 120 mm rear wheel travel
Length	2090 mm
Width (Handlebars)	785 mm
Height Without Mirror	1114 mm
Seat Height	760 mm
Dry Weight	198 kg
Tank Capacity	12 litres
Fuel Consumption	4.1 litres/100 km (69 mpg)
Engine Type	Liquid-cooled, 8 valve, SOHC, 270° crank angle parallel twin
Maximum Torque	80 Nm @ 3800 rpm
Front Wheel	Cast aluminium alloy 18 x 2.75in
Rear Wheel	Cast aluminium alloy 17 x 4.25in
Front Suspension	41mm forks
Front Brakes	Single 310 mm disc, ABS
Rear Brakes	Single 255mm disc, Nissin 2-piston floating caliper
Instrument Display and Functions	LCD instrument pack with analogue speedometer
Wheelbase	1415 mm
Maximum Power	65 PS / 64.1 bhp (47.8 kW) @ 7500 rpm

Summary

Foreword

Warnings, Cautions and Notes

Safety First

The Motorcycle

General safety regarding motorcycle design and usage limits.

Fuel and Exhaust Fumes

Critical safety warnings about handling gasoline and exhaust fumes.

Helmet and Clothing

Importance of wearing appropriate protective gear for rider safety.

Parking Safety

Riding Safety

General advice and warnings for safe motorcycle operation, including speed and conditions.

Serial Numbers

Vehicle Identification Number (VIN)

Location and recording of the Vehicle Identification Number (VIN).

Engine Serial Number

Location and recording of the engine serial number.

General Information

Instrument Panel Layout

Warning Lights

Details the meaning and function of various warning lights on the instrument panel.

Fuel and Refueling

Information on fuel types, tank capacity, and safe refueling procedures.

Breaking-In and Safety Checks

Guidance on the initial break-in period and essential daily safety checks.

How to Ride the Motorcycle

Starting and Stopping the Engine

Procedures for safely starting and stopping the motorcycle's engine.

Moving Off and Changing Gears

Guidance on moving off from a standstill and shifting gears smoothly.

Braking and ABS

Techniques for effective braking, including ABS operation and warnings.

Parking and High Speed Operation

Steering and Tires

Accessories, Loading and Passengers

Accessories and Loading

Passengers

Maintenance and Adjustment

Scheduled Maintenance

Overview of the planned maintenance schedule and its importance.

Engine Oil and Cooling System

Procedures for checking and maintaining engine oil and coolant levels.

Drive Chain and Brakes

Suspension and Tires

Battery and Fuses