Sweet Integrated rack and pinion units are a 4:1 Ratio
If you turn the pinion one rotation the rack will move 4″
Sweet is the only rack and pinion maufacturer to offer a 1-3/8” dual power cylinder that will produce smooth steering, the balance tube allows air to pass between the boots

Servo selection is driver preference:
.185 Servo is XX-Light
.200 Servo is X-Light
.235 Servo is Medium/Light

18.25″ is for Stealth Cars
18.25″ – 19.25″ is for Cowling CB1/CB2