Brakes (Bias & Pressure)
Brake bias balances lockup risk front vs rear. Pressure scales overall braking force.
What it does
Brake bias is the percentage of braking force sent to the front. Defaults are usually 50–55% forward. More forward = more stability under hard braking; more rearward = more rotation but lockup risk grows. (FH6 fixed the long-standing FH5 bug where the slider label was inverted — the % front label now matches what the slider actually does. Forum advice quoted from FH5 era may say to "shift the slider the opposite of the label" — that no longer applies.)
Pressure is a multiplier on total brake force. Leave at 100% unless you have a specific lockup problem you can't solve with bias. Reducing pressure makes ABS-off braking more forgiving.
Trail-braking changes everything: as you carry brake into a corner, weight is forward, so even a 50% bias acts rear-heavy. If you trail-brake and get turn-in understeer, *shift bias 1–2% rearward* — counter-intuitive but real.
In-game controls
Watch these telemetry signals
- Tire slip ratio (longitudinal)slipRatioWhere: Corner panels, "slip R" — front/rear and L/RUnder braking, slip ratio < 0 (negative) means lockup. Front slip negative + rear at 0 = front lockup → shift bias rearward. Rear locked = shift forward.
- Brake inputbrakeWhere: Trace strip, red lineCross-reference brake trace with slip spikes — if every hard brake event spikes one axle, that's the lockup tell
- Tire slip angle (lateral)slipAngleWhere: Corner panels, "slip A" — compare front vs rearTrail-braking: turn-in slip-angle spike on front = front losing it under combined brake + cornering. Shift bias slightly rearward.
Symptom → fix
| What you feel | Likely cause | Try this |
|---|---|---|
| Front wheels lock approaching corners, car plows past turn-in | Too much forward bias OR too much pressure | Bias 1–2% rear; if still locking, drop pressure to 95% |
| Rear locks under heavy braking, car spins | Too much rear bias | Bias 1–2% forward immediately |
| Trail-braking causes understeer at turn-in | Bias too forward when you add lateral load on top of braking | Bias 1–2% rear; the steady-state and trail-brake optimums differ |
| Snap-spin under braking on bumpy surface | Rear briefly unloads + bias too rear | Move bias forward by 2%; also check rear bump damping |