Xbility Interactive
Setup Guide Version 1.1 | Apr 21, 2026Version 1.1 Updates:- Added braking phase filter- Dynamic charts for each problem type- Recalibrated importance ratings- Updated toe and droop phases- Fixed rear spring position direction

Effect

Corner Phase

Importance

HighLow

Fix Problem

Front Geometry & Steering

Adjustment	Effect
Caster ↓What it is: The angle of the steering axis viewed from the side of the car.	5↘More entry steering; the car rotates sooner. 6↑Less straight-line stability and bump support.
Caster ↑What it is: The angle of the steering axis viewed from the side of the car.	5◯More stability and a calmer car on rough sections. 5↗Better on-power steering from mid to exit. 6↘Initial turn-in softens.
Bump Steer Shims ↓What it is: Shims used to change the height of the steering link (tie rod), affecting how the wheels steer as the suspension moves.	3→More mid-corner steering and rotation.
Bump Steer Shims ↑What it is: Shims used to change the height of the steering link (tie rod), affecting how the wheels steer as the suspension moves.	4→Less mid-corner steering; easier over chicanes.
Toe-Out ↑What it is: The angle of the front wheels viewed from above, where the front of the wheels point outward.	3↑More stable on power and on the straight. 3↗More stable on exit.
Toe-Out ↓What it is: The angle of the front wheels viewed from above, where the front of the wheels point outward.	2↘Quicker steering response and faster direction change. 2↗More rotation on exit.
Ackermann ↑What it is: The difference in steering angle between the inside and outside front wheels during cornering.	5→Smoother steering arc; best for flowing layouts.
Ackermann ↓What it is: The difference in steering angle between the inside and outside front wheels during cornering.	4↘Faster initial response; better for tight tracks.
Camber: more negativeWhat it is: The inward or outward tilt of the wheels when viewed from the front of the car.	3→More mid-corner front bite and line-holding.
Camber: less negativeWhat it is: The inward or outward tilt of the wheels when viewed from the front of the car.	4↘More stable front end and better braking support.
Camber Gain ↑What it is: The amount the camber changes as the suspension compresses during cornering.	3→More grip as chassis rolls; better loaded corner grip. Lifts rear wheels, can traction roll 5→Can feel less consistent on flat corners.
Camber Gain ↓What it is: The amount the camber changes as the suspension compresses during cornering.	3◯More consistent feel; predictable tire contact. Helps keep rear wheels down
Roll Center ↑What it is: The geometric point around which the chassis rolls when cornering.	3↘Less body roll; quicker weight transfer. Outer tire wear 4◯Can feel twitchy on rough surfaces.
Roll Center ↓What it is: The geometric point around which the chassis rolls when cornering.	3◯More body roll; smoother weight transfer. 4→Better bump absorption.

Chassis Balance & Front Suspension

Adjustment	Effect
Front droop ↑What it is: The amount the front suspension can extend downward from its normal ride height.	4↘More front grip and steering response. 5→More mid-corner grip. 6■Less stable under braking.
Front droop ↓What it is: The amount the front suspension can extend downward from its normal ride height.	4◯More stable front end; calmer reactions. 5■More stable under braking.
Ride Height ↓What it is: The distance between the chassis and the ground.	2◯More overall grip and faster reaction.
Ride Height ↑What it is: The distance between the chassis and the ground.	3◯Better on bumps; slower reactions with more roll.
Front lower than rearWhat it is: The difference between front and rear ride height.	3↘More steering into corner and line-holding. 5↗Can add on-power oversteer.
Front Track Width ↑What it is: The distance between the left and right front wheels.	1◯More front traction; reduces traction roll.
Front Track Width ↓What it is: The distance between the left and right front wheels.	4↘Better response and faster transitions.
Front shock position ↓What it is: The mounting position and angle of the front shock absorbers.	3→Calmer response in high-speed corners. Softens spring rate, more corner entry when track has bite
Front shock position ↑What it is: The mounting position and angle of the front shock absorbers.	2↘Sharper response and more rotation. Raises spring rate, slower corner entry, more exit steering
Front springs stifferWhat it is: The stiffness of the front suspension springs.	1↘More initial steering and rotation. Calms corner entry on high bite, more mid and exit steering 4→Less mid-corner steering feel. More mid-exit steering on high bite
Front springs softerWhat it is: The stiffness of the front suspension springs.	2→More mid-corner grip; smoother on bumps. Helps car dive in entry
Front shock lube: harder (thicker)What it is: The shock lube controls how fast the front suspension moves during compression and rebound. It does not change spring stiffness, it changes movement speed and weight transfer timing.	2◯Increased stability and reduced steering. 4◯Less mechanical grip on low grip tracks.
Front shock lube: softer (thinner)What it is: The shock lube controls how fast the front suspension moves during compression and rebound. It does not change spring stiffness, it changes movement speed and weight transfer timing.	2↘More steering and front grip. 3◯Better for low grip and bumpy tracks.

Rear Geometry, Diff & Dampers

Adjustment	Effect
Rear droop ↑What it is: The amount the rear suspension can extend downward.	4↘More off-power steering and corner speed. 5→More mid-corner rotation. 6◯Less overall rear stability.
Rear droop ↓What it is: The amount the rear suspension can extend downward.	4◯More stability, but less rotation. 5■More stable under braking.
Rear droop ↓What it is: The amount the rear suspension can extend downward.	2◯More stability, but less rotation.
Rear Track Width ↑What it is: The distance between the left and right rear wheels.	1◯More stable and easier to drive.
Rear Track Width ↓What it is: The distance between the left and right rear wheels.	3→Better rotation and corner speed.
Differential tighterWhat it is: The rear differential that controls how power is distributed between the rear wheels.	2↗More steering and a more direct feel.
Differential looserWhat it is: The rear differential that controls how power is distributed between the rear wheels.	3↗Less steering and calmer rear balance.
Rear spring positionWhat it is: The mounting position of the rear suspension springs.	3◯Back = softer; middle = std; front = harder.
Side link inside / higherWhat it is: The side link controls the lateral movement and roll characteristics of the rear pod.	5→More in-corner steering; less linear feel.
Side link outside / flatWhat it is: The side link controls the lateral movement and roll characteristics of the rear pod.	4◯More neutral and smoother rear behavior.
Pod squat: rear higherWhat it is: The rear pod angle and movement under acceleration.	3↗More rear traction; less on-power steering.
Pod squat: rear lowerWhat it is: The rear pod angle and movement under acceleration.	4↗More on-power steering; less rear traction.
Pivot ball shims ↑What it is: Shims used to adjust the height of the rear pivot ball.	5◯More stability. No shim = most rotation.
Side damper angle ↑What it is: The angle of the side damper that controls chassis roll and damping characteristics.	4→Stiffer feel with less roll.
Side damper flatWhat it is: The angle of the side damper that controls chassis roll and damping characteristics.	5◯Softer feel with more roll; standard baseline.
Damper lube: harder (thicker)What it is: The damper lube controls how fast the rear suspension moves during compression and rebound. It does not change spring stiffness, it changes movement speed and weight transfer timing.	2◯More stability and precision. 3◯Better for high grip and smooth layouts.
Damper lube: softer (thinner)What it is: The damper lube controls how fast the rear suspension moves during compression and rebound. It does not change spring stiffness, it changes movement speed and weight transfer timing.	2↗More rear traction and rotation. 3◯Better for low grip and bumpy tracks.

Tip: Make one change at a time and judge entry, mid-corner, and exit separately.

Tip: Explore the possibilities with drastic adjustments, but fine tune with small adjustments.