Triumph Sprint ST Handbook

79
Maintenance and Adjustment
Chain and Sprocket Wear Inspection
1. Measure across 20 links
2. Weight
Remove the chain guards.
Stretch the chain taut by hanging a
10 - 20 kg weight on the chain.
Measure the length of 20 links on the
straight part of the chain from pin centre of
the 1
st
pin to the pin centre of the 21
st
pin.
Since the chain may wear unevenly, take
measurements in several places.
If the length exceeds the maximum service
limit of 321 mm, the chain must be replaced.
Rotate the rear wheel and inspect the drive
chain for damaged rollers, and loose pins and
links.
Also inspect the sprockets for unevenly or
excessively worn or damaged teeth.
If there is any irregularity, have the drive
chain and/or the sprockets replaced by an
authorised Triumph dealer.
Replace the chain guards.
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2
Warning
The use of non-approved chains may result
in a broken chain or may cause the chain
to jump off the sprockets.
Use a genuine Triumph supplied chain as
specified in the Triumph parts catalogue.
Never neglect chain maintenance and
always have chains installed by an
authorised Triumph dealer.
Caution
If the sprockets are found to be worn,
always replace the sprockets and drive
chain together.
Replacing worn sprockets without also
replacing the chain will lead to premature
wear of the new sprockets.
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Triumph Sprint ST Specifications

General

Engine Type	Liquid-cooled, 12 valve, DOHC, in-line 3-cylinder
Displacement	1050cc
Bore x Stroke	79 x 71.4 mm
Compression Ratio	12.0:1
Fuel System	Multipoint sequential electronic fuel injection
Final Drive	X ring chain
Clutch	Wet, multi-plate
Gearbox	6-speed
Rear Suspension	Monoshock with adjustable preload and rebound damping
Rear Brakes	Single 255mm disc, 2-piston caliper
Front Wheel	17 x 3.5 in
Rear Wheel	17 x 5.5 in
Front Tyre	120/70 ZR 17
Rear Tyre	180/55 ZR 17
Max Power	125 PS / 123 bhp / 92 kW @ 9, 250 rpm
Max Torque	104 Nm / 77 ft-lb @ 5, 000 rpm
Frame	Aluminum beam perimeter
Front Suspension	43 mm
Front Brakes	Twin 320 mm floating discs, 4 piston calipers
Seat Height	805 mm
Dry Weight	210 kg
Fuel Tank Capacity	20 liters