Shimano Steps EP800 Série Mode D'emploi page 45

INSTALLING ELECTRICAL PARTS
Installing the speed sensor
(2) Temporarily install the mounting screw.
Magnet unit
Speed sensor
(Temporary)
Spoke Mounting screw
2.
Install the speed sensor.
Check that the clearance between the speed sensor and magnet unit is from 3 to 17 mm.
Clearance between speed sensor and magnet unit
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