Suzuki FL125S Service Manual page 148

5-11 CHASSIS
SPEEDOMETER GEARBOX
Turn the speedometer gear and check to see that the gear turns
smoothly together with the speedometer pinion.
If any defects are found, replace the speedometer gearbox with
a new one.
WHEEL RIM ................................................................ $2-19
SPOKE NIPPLE .......................................................... $2-19
TIRE............................................................................. $2-19