Anti-Roll Bars (ARBs)
The cheapest balance tweak. Stiffer ARB on an axle = less grip on that axle.
Front |slip angle| avg11.4°
Rear |slip angle| avg10.3°
Lateral G p951.38 g
What it does
ARBs link left and right wheels on the same axle. Under cornering, the bar transfers load from the outside to the inside wheel, reducing roll. The stiffer the bar, the more aggressively it transfers load — and load transfer reduces grip.
Almost every community guide says: tune ARBs *before* you touch springs, because ARBs affect cornering balance without breaking your bump/ride-height work. Springs are coarse, ARBs are fine.
Default front ARB is usually stiffer than rear; that keeps the rear planted on weight transfer. Drift setups invert this.
In-game controls
Front ARB
Range: 20–35 on most cars
Raise →
less front grip — adds understeer
← Lower
more front grip — reduces understeer
Rear ARB
Range: Usually 60–90% of front
Raise →
less rear grip — adds oversteer (good for FWD or AWD that pushes)
← Lower
more rear grip — reduces oversteer (good for skittish RWD)
Watch these telemetry signals
- Tire slip angle (lateral)slipAngleWhere: Corner panels, "slip A" — compare front vs rearFront-axle slip > rear in mid-corner = understeer → soften front ARB or stiffen rear. Opposite for oversteer.
- Suspension travelsuspensionWhere: Corner panels, suspension bar (0..1, flashes red at >0.95)Asymmetric L/R compression in steady cornering: very large delta = the ARB on that axle is doing a lot of work. Reduce if the axle is losing grip.
- Tire temperaturetireTempCWhere: Corner panels, tire temp heatmap (cold blue → optimal green → hot red)Outside tire much hotter than inside on the same axle = ARB is doing its job. Both edges very hot = car rolls too much overall (more ARB or more spring).
Symptom → fix
| What you feel | Likely cause | Try this |
|---|---|---|
| Steady understeer through long sweeping corners | Front ARB too stiff vs rear | Lower front ARB by 2–4 clicks; if still pushy, raise rear ARB |
| Steady oversteer mid-corner | Rear ARB too stiff vs front | Lower rear ARB by 2–4 clicks first |
| AWD car plows in tight corners | Rear ARB too soft; rear sticks while front washes | Stiffen rear ARB; also consider center diff to send less power forward |
| Car rolls heavily, slow direction changes (chicanes) | Both ARBs too soft | Raise both, keeping front:rear ratio |