Cylinder bore size directly affects steering force, while orbital valve displacement determines steering speed (turns lock-to-lock). Larger displacement valves reduce steering input effort but require sufficient pump flow and tuning to maintain performance.
Steering Performance
Valve pairing affects steering speed (pump tuning may be required):
-
120cc Valve: ~3.4 turns lock-to-lock
-
160cc Valve: ~2.6 turns lock-to-lock (pump tuning required)
-
185cc Valve: ~2.2 turns lock-to-lock (race-only, pump tuning required)
Turning Force:
- 1650 PSI: 5,148 lbs of turning force
- 1800 PSI: 5,654 lbs of turning force
