Chinese Sidewinder Slot Car Motors For SaleSidewinder Slot CanyonSlotcar Sidewinder Vs AnglewinderSidewinder Slot Car Sacramento CaSlot.It 18mm sidewinder spur gears (ergal) are used for sidewinder motor setups where the motor shaft is parallel (or nearly so) to the rear axle. 'Ergal' is a trade name for 7075 aluminum alloy. This sidewinder spur gear has 32 teeth (32T). Selecting a pinion gear t..