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Transmission
transmission
Plain explanation
A 5-speed gearbox that lets you choose the right gear ratio for speed, hills, and acceleration.
Technical
Constant-mesh gearbox with foot-operated gear selector. Output shaft drives front sprocket via chain final drive.
Function & location
Multiply engine torque through selectable gear ratios to the final drive.
Inside engine cases, behind clutch; gear lever on left foot peg area.
Connections
- Clutch
- Gear selector lever
- Front sprocket
- Engine crankshaft
Subcomponents
Gear selector drum
Rotates to select gears.
Shift forks
Move gears on shafts.
Input and output shafts
Carry gear sets.
Common wear & symptoms
- Shift fork wear
- Gear dog wear
- Selector mechanism play
- Oil degradation affecting shift quality
- False neutrals
- Hard shifting
- Grinding into gear
- Jumping out of gear under load
Maintenance notes
- Use correct engine oil grade for wet clutch compatibility
- Inspect gear lever linkage
- Address hard shifting before damage worsens
Related components
Demonstration content — verification required.