Suspension Setting; Front Suspension Adjustment - Triumph Bonneville Handbook

Suspension Setting

All models except the Thruxton have non-
adjustable front suspension.
Thruxton is fitted with adjustable front
suspension.
Warning
Never attempt to dismantle any part of the
suspension units, as all units contain
pressurised oil. Skin and eye damage can
result from contact with the pressurised oil.

Front Suspension Adjustment

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1. Front suspension pre-load adjuster -
Thruxton only
To change the spring pre-load, rotate the
adjuster clockwise (screw-in) to increase
pre-load, or anti-clockwise (screw-out) to
decrease pre-load. Always set the pre-load
adjusters such that there are an equal
number of graduation lines visible on both
forks.
Maintenance and Adjustment
Each graduation line should be set in
alignment with the upper surface of the fork
cap.
Only the
Ensure that the adjusters are set to the
same setting on both front suspension
units. Settings which vary from left to right
may affect handling and stability resulting
in loss of motorcycle control, and an
accident.
Note:
• The motorcycle is delivered from
the factory
pre-load
4 graduation lines visible.
Warning
with the spring
adjuster set with
85