🔄 LMU TC Update — What Changed in v1.2.4 (24 Feb 2026)

Hot on the heels of the major v1.2.3 tyre model overhaul, Studio 397 dropped v1.2.4 on 24 February 2026. While this patch is smaller in scope, it directly affects how you should be thinking about driving aids — especially if you're racing Hypercars online. Here's what changed and what it means for your TC setup.

⚖️ Driving Aid Weight Penalties — The Big One

This is the headline change for Hypercar drivers using any form of driving aid. The weight penalties for ABS and Stability Control have been significantly increased:

• ABS Low: now 25 kg penalty (up from previous values)

• ABS High: now 45 kg penalty

• Stability Control Low: now 20 kg penalty

• Stability Control High: now 40 kg penalty

Note that TC itself does not carry a weight penalty in LMU — this is specific to ABS and Stability Control. But it matters for your overall setup philosophy. If you've been running ABS High to compensate for the now-peakier v1.2.3 tyre model, you're now carrying a 45 kg anchor. That's a massive BoP-equivalent penalty that will cost you significantly on longer stints and under braking.

🔋 Battery Soft Clipping Expanded (Hypercars)

The range of soft clipping on Hypercar batteries has been increased from 5% to 15%. In practice this means hybrid power delivery is smoother at the edges of the deployment window — less of that sudden drop-off when the battery hits its limit. For TC purposes, this is relevant because abrupt hybrid deployment spikes were one of the triggers for unexpected rear slip events that your TC had to catch. With a wider soft clipping range, throttle-exit behaviour should be slightly more predictable, and you may find you can run a touch less TC intervention in the medium to high-speed corners where the hybrid is most active.

🌧️ Wet Tyre Performance Reviewed

Hypercar wet tyre performance and drivability have been reviewed in v1.2.4. In wet conditions, the already-peaky post-v1.2.3 tyre model was proving particularly brutal — some drivers were finding the rain tyres even less progressive than the slicks in terms of TC behaviour. The v1.2.4 review aims to improve wet drivability. In the wet, the recommended approach is to run higher TC and higher TC Slip Angle values than your dry setup — the narrower grip envelope in the wet makes high slip angle tolerance a liability. A starting point of TC 10–11 / TC Power Cut 2–3 / TC Slip Angle 5–7 in mixed or wet conditions is worth trying until the community has had more time to dial in wet-specific setups post-update.

🏁 LMGT3 BoP Shake-Up — What It Means for TC

The v1.2.4 patch includes a large LMGT3 Balance of Performance revision — the biggest since v1.2.3. The Lamborghini Huracán EVO2 has been penalised heavily with up to 45 kg of extra ballast at Le Mans, while the Aston Martin Vantage AMR LMGT3 has received substantial weight breaks at several circuits. The Porsche 911 GT3 R and McLaren 720S Evo also see circuit-specific adjustments.

For TC setup, BoP changes matter. A heavier car is generally more stable under power — so if your car has gained weight ballast, you may find you can run slightly lower TC values without the same spin risk. Conversely, cars that have lost ballast (like the Aston Martin) may be quicker but also more alive at the rear. Revisit your TC baselines if you drive a car that's seen significant weight changes in v1.2.4.

📋 Quick Summary — v1.2.4 TC Takeaways

• TC itself has no weight penalty — but ABS and SC now do. If you were using ABS High as a crutch post-v1.2.3, it's time to dial it back or accept the 45 kg hit.

• Expanded battery soft clipping (15%) makes hybrid delivery smoother — you may be able to lower TC marginally in fast hybrid-active corners.

• Wet tyre drivability improved — but still run higher TC / lower TC Slip Angle than dry in wet conditions.

• LMGT3 BoP changes mean car behaviour has shifted — revisit your TC baselines, especially for the Lambo, Aston, and Porsche.

• The dev team has confirmed the v1.2.3 tyre model changes are a first step and will continue to be tweaked based on community feedback — so expect further TC-relevant changes ahead.

🎙️ Clockwerk Radio

The v1.2.3 and v1.2.4 patch cycle has been one of the most significant periods of change for Hypercar driving in LMU's history. If you haven't revisited your TC setup since the February updates, now is the time. Drop your car and current TC numbers in the comments — always happy to help dial it in. More setup guides and update breakdowns coming soon. See you on track. 🏎️