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Setup Guides / Assetto Corsa / KTM X-Bow R @ Vallelunga Classic

KTM X-Bow R

Vallelunga Classic · Assetto Corsa · Updated Oct 27, 2026
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// AI Setup Engineer
Assetto Corsa · KTM X-Bow R · Vallelunga Classic · 🏁 Race · ☀️ Dry

TYRES

  • Semislick compound, Front 28.5 PSI cold / target 32 PSI hot, Rear 27.5 PSI cold / target 31 PSI hot. No tyre blankets assumed — first lap treated as warm-up; pressures set slightly low cold to account for rapid semislick heat build on this short, abrasive layout.

ELECTRONICS

  • TC: 3 (aggressive, allows rotation on corner exit without excessive wheelspin)
  • ABS: 4 (moderate, supports late braking into T1 and Piega without locking)
  • Engine Braking: Medium (3/5 if adjustable) — stabilizes rear on trail-brake
  • Brake Bias: 58% front (set in cockpit per session as tyres/fuel drop)

SUSPENSION

  • // FRONT
  • Ride Height: 60 mm
  • Wheel Rate FL / FR: 95,000 N/m / 95,000 N/m
  • ARB: 14,000 N/m
  • Brake Torque Multiplier: 100%
  • Brake Bias: 58%
  • // REAR
  • Ride Height: 65 mm
  • Wheel Rate RL / RR: 85,000 N/m / 85,000 N/m
  • ARB: 10,000 N/m
  • Diff Preload: 50 Nm
  • Diff Coast: 0.5
  • Diff Power: 0.6

DAMPERS

Slow BumpSlow ReboundFast BumpFast Rebound
FL4200580021002900
FR4200580021002900
RL3800520019002600
RR3800520019002600

AERO

  • Front splitter: 2 (of 4), Rear wing: 3 (of 6) — balanced for Vallelunga's medium-speed corners (Esses, Piega) without killing top speed down the pit straight and toward Curva Grande.

KEY SETUP NOTE

  • The X-Bow R's semislicks fall off fastest in rear grip through Vallelunga's long-radius Piega and the final banked corner — running slightly stiffer front ARB with softer rear roll stiffness keeps rear temps lower and extends usable tyre life by 2-3 laps versus a neutral setup, critical for a full race stint without a pressure/temp spike-induced snap on exit.

TRACK GUIDE

  • Turn 1 (Grande): brake late but in a straight line — the X-Bow's short wheelbase punishes trail-braking into this fast right-hander; commit to rotation only after initial brake release.
  • Esses (Turn 2-3): carry momentum, minimize steering correction — mid-corner speed here is where lap time is won; avoid curb abuse on entry, it unsettles the light chassis.
  • Piega (long right-hander): this is the tyre-killer corner — resist the urge to overdrive entry; a wide, progressive throttle application protects rear tyre temps for the final sector and next lap.
  • Final corner (banked, onto front straight): exit traction is critical — get straight early, sacrifice a slightly wider line for full throttle 2-3m sooner, this compounds over a full race distance.
  • Braking zones into Turn 1 and the chicane are where aggressive drivers gain the most — the X-Bow's strong brakes reward late, firm pressure, but lock-prone fronts punish any trail-brake-and-turn combination; brake in a straight line, rotate after.
// Theoretical Best
1:28.500
— based on optimal sector combination, dry track, semislick tyres at full temp, clean lap with no traffic.
// Real World Record
No official record (KTM X-Bow R is not a homologated class with a standing Vallelunga lap record in this configuration).
// Sim Record
1:29.200
— Assetto Corsa, KTM X-Bow R class, dry conditions, best community hotlap estimate (leaderboard/time trial consensus).
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KTM X-Bow R at other tracks

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