This page is intended to be a primer on the differences between the tree major drive mechanisms in scooters and karts: spindle, chain and belt.

Spindle drive Chain drive Belt Drive
Centrifugal clutch rare most most
Wet conditions poor excellent excellent
Sandy conditions poor excellent excellent
Rocky conditions poor fair poor
Requires lubrication no yes no
Requires reduction transmission no no yes
Lifetime before maintenance 10s of miles 100s of miles life of the vehicle
Efficiency excellent excellent excellent
Cost low medium medium