4. Maintenance & Adjustment
Sonic user manual.indd 11
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3. Lubrication
Once a month lubricate all pivot points on your
derailleur and the derailleur pulleys with suitable
chain lube.
Every three months lubricate the brake lever pivots,
gears and chain with suitable oil.
4. Brakes
power. Like a car, it is important to regularly
(recommended yearly or if brakes feel soft and
spongy) bleed brakes to remove air bubbles from
the system.
For adjustment and bleeding of hydraulic disc
brakes, see brake manufacturers instructions.
Brakes should be firm and privide good stopping
5. Fork & Rear Shock Adjustment
Your Hypersonic is equipped with a rear shock and
fork which works by both air and coil resistance. For
proper setup, you must use a shock pump (not
included) to tune the fork and rear shock to the
correct pressures and settings for your profile and
riding requirements. This is best done by your
Smartmotion dealer.
5.1 Fork
To adjust the fork pressure, remove the air valve
cap found on the left side of the fork crown.
Connect the shock pump and inflate to desired
pressure. The correct pressure can be found by
applying your bodyweight to the handlebars
(without bouncing) so that the fork sags. The
O-ring marker displays the maximum sag, so
adjust the fork pressure until the O-ring sags
around 40mm (30%). You can adjust the
compression by turning the black lever on the
right side of the crown, and the rebound by
turning the red knob underneath the fork.
5.2 Rear Shock
To adjust the shock pressure, connect the shock
pump to the shock and inflate to the desired
pressure. The correct pressure can be found by
sitting on the saddle, where the shock should
sag 30% as indicated by the O-ring marker.
Adjust the shock pressure until approx. 30% sag
is indicated. Adjust the compression by turning
the blue lever, and the rebound by turning the
red knob.