E L E C T R I C B I C Y C L E M A N U A L - B I G B O Y
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Bike Debugging Instruction
2.Shifting Device Debugging
：
2.1Through adjusting the regulating screws on the back derailleur to make the center of guide wheel is placed at the same line as the center
of the flywheel
’s minimum tooth when the derailleur is at the outermost place, and make the center of guide wheel is placed at the same line as the
center of the flywheel
’
s maximum tooth when the derailleur is at the innermost place.
2.2 Through adjusting the installed nut of the fixed transmission core of back derailleur and the core
’s degree of tightness to achieve the
flexible gear shift of transmission and the free shift of each gear without any noise.
The outside of the
smallest flywheel.
Guide roller
High transmission gear position
adjuster screw
