Triumph Bonneville Bobber 2018 User Manual

Maintenance
88
Drive Chain
cbnz
Warning
A loose or worn chain, or a chain that
breaks or jumps off the sprockets
could catch on the engine sprocket or
lock the rear wheel.
A chain that snags on the engine
sprocket will injure the rider and lead
to loss of motorcycle control and an
accident.
Similarly, locking the rear wheel will
lead to loss of motorcycle control and
an accident.
For safety and to prevent excessive
wear the drive chain must be checked,
adjusted and lubricated in accordance
with scheduled maintenance require-
ments. Checking, adjustment and lubri-
cation must be carried out more
frequently for extreme conditions such
as salty or heavily gritted roads.
If the chain is badly worn or incorrectly
adjusted (either too loose or too tight)
the chain could jump off the sprockets
or break. Therefore, always replace worn
or damaged chains using genuine
Triumph parts supplied by an authorised
Triumph dealer.
Drive Chain Lubrication
Lubrication is necessary every 200 miles
(300 km) and also after riding in wet
weather, on wet roads, or any time that
the chain appears dry.
To lubricate the drive chain:
• Use the special drive chain
lubricant as recommended in the
Specifications section.
• Apply lubricant to the sides of the
rollers then allow the motorcycle to
stand unused for at least eight
hours (overnight is ideal). This will
allow the oil to penetrate to the
drive chain O-rings etc.
• Before riding, wipe off any excess
oil.
• If the drive chain is especially dirty,
clean first and then apply oil as
mentioned above.
Caution
Do not use a pressure washer to clean
the drive chain as this may cause
damage to the drive chain components.

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