| Message |
A smaller DRIVE(crank pulley) pulley will have the effect of turning a DRIVEN(alt pulley for example) pulley slower, ande hence the accessory. Larger is, of course, the opposite effect. A smaller DRIVEN pulley will have the effect of turning the accessory faster. Larger is, of course, the opposite effect. An underdrive crank pulley will drive accessories slower, and an "over" drive accessory pulley will also drive accessories slower.

|
 |