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Light
√ √ √ √ √ √ √ √ Observe that all lights are turned on normally, and
replace them if necessary.
Shock absorber
√ √ √ √ √ √ √ √
It should operate and retract smoothly.
Check for oil leakage
It should be adjusted or operated normally; if not,
repair or replace it.
Rim assembly
√ √ √ √ √ √ √ √
Check whether the bearing is loose or damaged, and
replace it if necessary.
Check the spoke for looseness, slipping and cap
removal, and adjust or replace it if necessary.
Tires
√ √ √ √ √ √ √ √
Check tire wear and bead toe and replace them if
necessary.
Check whether the tire pressure is correct, and adjust it
if necessary.
Check the aging of tires and replace them if necessary.
Motor
√ √ √ √ √ √ √ √
Check whether the casing and cable are cracked or
damaged.
Check whether it runs normally without abnormal
sound and abnormal temperature rise.
Drive chain
√ √ √ √ √ √ √ √
Check the sag of the chain and adjust it if necessary.
Check for excessive wear and damage and replace it.
Clean and lubricate.
Drive sprocket
√ √ √ √ √ √ √ √
Check the wear and replace it if necessary.
Replace if there is abnormal sound.
Whether the chain guide or tensioner is replaced