Gear Shift; Using The Derailleur Gears - Bosch ZEMO SU-E FS 12 Translation Of Original Operating Instructions

6.20

Gear shift

The selection of the appropriate gear is a
prerequisite for a physically comfortable ride and
making sure that the electric drive system
functions properly. The ideal pedalling frequency
is between 70 and 80 revolutions per minute.
 Stop pedalling briefly when changing gears. This
makes it easier to switch gears and reduces wear
on the drivetrain. However, keep the crank
moving while switching gears.

6.20.1 Using the derailleur gears

Only applies to pedelecs with this equipment
The speed and range can be increased while
applying the same force if you select the right
gear.

Stop pedalling briefly when changing gears. This
makes it easier to switch gears and reduces wear
on the drivetrain. However, keep the crank
moving while switching gears.
Figure 190: Switching gears with lever A, using gear shift
SL-M315 as an example
Lever A switches from a smaller pinion to a larger
one.The number of pinions switched depends on
the selected position of lever A.
 Place shifter A in position 1.
 System shifts one pinion higher.
 Place shifter A in position 2.
 System shifts two pinions higher.
MY22Z0a - 12_1.0_25.07.2022
Figure 191: Switching gears with lever B, using gear shift
SL-M315 as an example
Lever B switches from a larger pinion to a smaller
one.
 Place shifter B in position 1.
 System shifts one pinion lower.
Switching gears
 Select the appropriate gear with the gear shift
unit.
 The gear shift switches the gear.
 The shifter returns to its original position.
2  Clean and lubricate the rear derailleur if gear
changes block.
1
Operation
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