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MAINTENANCE AND
SERVICING
Belt drive
Your ST7 is equipped with a belt drive (Gates Car-
bon Belt Drive). The automatic tensioning roller
saves you from having to check and retension the
belt frequently, making it almost maintenance
free.
Please follow the handling instructions be-
low to help make your belt last longer. Improper
handling can damage the belt and may mean that
it needs replacing!
• Do not bend or twist the belt.
• Do not turn the belt inside out.
• Do not bunch or coil the belt.
• Do not use as a belt tool.
• Do not use tools or sharp instruments when
handling the belt.
• Do not push down on the belt pulley.
• Do not oil the belt.
To extend the lifespan of the belt, we recommend
cleaning it with water or a hand brush (e.g. after
riding through mud or dirt). Residue left on the
belt or belt pulleys can result in increased wear
and noise generation (e.g. squeaking or creaking).
Use in winter: The belt will not rust but salt crys-
tals may form on the pulley system if salt water
is left to dry on it. Even if no dirt is visible, you
should wash your bike and belt regularly when
using it during winter. Use warm water and a mild
detergent or dish soap.
Check your belt drive for damage, deformation
or cracks each time you clean it. If you have any
doubts, contact your Stromer dealer. If you still
notice that the belt system is making noise de-
spite a thorough cleaning, a thin layer of dry sili-
cone spray can be applied to the inside of the belt.
This protects it against any further build-up and
reduces friction and noise generation.
Gear system
The gears are operated via the Smart.Shift auto-
matic gearshift lever (hereinafter referred to as
the “trigger”). The Pinion trigger is an electronic
system powered by a BQ1440 battery.
To change gear, press one of the gearshift levers.
To shift up a gear, press the front short lever once.
To shift down a gear, press the longer rear lever
once. You can change several gears in succession
by pressing the lever several times. Shifting while
pedaling is possible, but not when the load is too
high.
You can find more detailed information in the spe-
cific user manuals included in the delivery:
Trigger: Pinion Smart.Shift user manual;
Gearbox: Pinion C-Line user manual;
or on the website: pinion.eu/smartshift
You can freely adjust the gearshift lever as-
signment. Please read the “Trigger setting” chap-
ter for more information.
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