Triumph Bonneville Bobber 2018 User Manual

Maintenance
83
Cooling System
To ensure efficient engine cooling, check
the coolant level each day before riding
the motorcycle, and top up the coolant
if the level is low.
Note:
• A year round, Hybrid Organic Acid
Technology (known as Hybrid OAT or
HOAT) coolant is installed in the
cooling system when the motorcycle
leaves the factory. It is coloured
green, contains a 50% solution of
ethylene glycol based antifreeze,
and has a freezing point of -35°C
(-31°F).
Corrosion Inhibitors
Warning
HD4X Hybrid OAT coolant contains
corrosion inhibitors and antifreeze
suitable for aluminium engines and
radiators. Always use the coolant in
accordance with the instructions of
the manufacturer.
Coolant that contains anti-freeze and
corrosion inhibitors contains toxic
chemicals that are harmful to the
human body. Never swallow antifreeze
or any of the motorcycle coolant.
Note:
• HD4X Hybrid OAT coolant, as
supplied by Triumph, is premixed
and does not need to be diluted
prior to filling or topping up the
cooling system.
To protect the cooling system from
corrosion, the use of corrosion inhibitor
chemicals in the coolant is essential.
If coolant containing a corrosion
inhibitor is not used, the cooling system
will accumulate rust and scale in the
water jacket and radiator. This will block
the coolant passages, and considerably
reduce the efficiency of the cooling
system.
Coolant Level Inspection
Note:
• The coolant level should be checked
when the engine is cold (at room or
ambient temperature).
cjwi
2
1
1. Maximum mark
2. Minimum mark

Triumph Bonneville Bobber 2018 Specifications

General

Engine Displacement	1200 cc
Compression Ratio	10.0:1
Fuel System	Multipoint sequential electronic fuel injection
Clutch	Wet, multi-plate assist clutch
Transmission	6-speed
Frame	Tubular steel cradle
Front Tyre	100/90-19
Rear Tyre	150/80 R16
Seat Height	690 mm
Trail	90 mm
Dry Weight	228 kg
Engine Type	Liquid-cooled, 8 valve, SOHC, parallel twin
Bore x Stroke	97.6 mm x 80 mm
Power	76 HP (55 kW) @ 6, 100 rpm
Torque	106 Nm @ 4, 000 rpm
Final Drive	Chain
Swingarm	Twin-sided, steel
Front Wheel	19 x 2.5 in
Rear Wheel	16 in
Front Suspension	41mm forks
Front Brakes	Single 310 mm disc, 2-piston caliper
Rear Brakes	Single 255 mm disc, 2-piston caliper
Instrument Display and Functions	LCD multi-functional instrument pack with analogue speedometer, odometer, gear position indicator, fuel gauge, range to empty, service indicator, clock, trip computer, scroll and mode buttons on handlebar, cruise control, traction control status, heated grip ready, and throttle mode display
Wheelbase	1, 510mm
Tank Capacity	9.1 L (2.4 US gal)
Exhaust	Brushed 2-into-2 with twin slash cut silencers