Shifting System Breakdown

Handlebar Shifter Inspection:

• Examine the shifter on the handlebars for any visible damage, bumps, or dings.
• Ensure that the shifter is in good condition.

Shift Sensor Check:

• Follow the cable from the shifter to the shift sensor (if included on your bike) and inspect it for damage.
• Verify that the shift sensor is not smashed or damaged, as it plays a crucial role in stopping the motor during gear shifts.

Cable Inspection:

• Examine the cable for any visible damage as it travels down to the frame.
• Inspect the cable where it enters the frame, even though the internal components cannot be seen.

Rear Derailleur and Cassette Inspection:

• Check the rear derailleur for damage, rocks, bends, or kinks that may affect its performance.
• Gently move the cassette to inspect for any visible damage, cracks, or broken cogs.

Chain Examination:

• Inspect the chain for any signs of damage, bends, or kinks.
• Examine the front chainring, especially the teeth, for any bending, damage, or breakage.

Tuning the Derailleur:

• Once all components are visually inspected, proceed to tune the derailleur to ensure proper functionality.
• Refer to the Derailleur Adjustment or Limit Screw Adjustment instructions for direction on tuning your derailleur.