LAISA450 SX-F 2025 - Hardpack
Tuned for Arenzano - Terrarossa - adds: hardpack, technical, tight
KTM 450 SX-F 2025 - 75 kg, Intermediate, Neutral, Hardpack - Arenzano - Terrarossa
Set this first
Shock: High-speed compression
- Stock value
- 1.5 turns
- Recommended
- 1 turn
- Change
- 0.5 turns harder than stock
clicks out from fully closed
How to test it: Change High-speed compression only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.
- Shock: High-speed compression1 turn0.5 turns harder than stockcomputed
- Fork: Compression15 clicks3 clicks softer than stockcomputed
- Shock: Low-speed compression18 clicks3 clicks softer than stockcomputed
- Shock: Rebound17 clicks2 clicks softer than stockcomputed
- Fork: Rebound20 clicks2 clicks softer than stockcomputed
19 confirmed settings available.
Computed from factory specs and your factors
Last reviewed: no release date - this starting value was computed, not measured.
A starting point to verify on the bike - not a safety guarantee. Change one thing at a time and check on track. How LAISA derives this →
All recommended changes
In order, biggest deviation from the stock value first. Take them one at a time.
- Shock: High-speed compression0.5 turns harder than stock
1.5 turns1 turnclicks out from fully closed
How to test it
Change High-speed compression only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.
- Fork: Compression3 clicks softer than stock
12 clicks15 clicksclicks out from fully closed
Reason: condition Hardpack - Arenzano - Terrarossa
How to test it
Change Compression only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.
- Shock: Low-speed compression3 clicks softer than stock
15 clicks18 clicksclicks out from fully closed
Reason: condition Hardpack - Arenzano - Terrarossa
How to test it
Change Low-speed compression only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.
- Shock: Rebound2 clicks softer than stock
15 clicks17 clicksclicks out from fully closed
Reason: condition Hardpack - Arenzano - Terrarossa
How to test it
Change Rebound only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.
- Fork: Rebound2 clicks softer than stock
18 clicks20 clicksclicks out from fully closed
Reason: condition Hardpack - Arenzano - Terrarossa
How to test it
Change Rebound only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.
- Tire: Rear tire pressure0.1 bar more than stock
1 bar1.1 bar
Reason: condition Hardpack - Arenzano - Terrarossa
How to test it
Change Rear tire pressure only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.
- Tire: Front tire pressure0.05 bar more than stock
1 bar1.05 bar
Reason: condition Hardpack - Arenzano - Terrarossa
How to test it
Change Front tire pressure only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.
- Transmission: Rear sprocket1 tooth more than stock
51 teeth52 teeth
Reason: condition Hardpack - Arenzano - Terrarossa
How to test it
Change Rear sprocket only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.
All technical values
Complete settings, technical data, components, gearing and geometry - including the adjusters that exist on the bike but do not carry a confirmed value yet.
| BrakeBrembo Hydraulic Disc Brakes (260/220 mm) | ||
| Brake lever position | 3 notch | OEM |
| ChainOEM Chain | ||
| Chain length | 118 links | OEM |
| ChassisOEM Chromoly Steel Frame | ||
| Fork height in clampstube protrusion above top clamp | 2 ring | OEM |
| ClutchOEM DDS Wet Multiplate Clutch | ||
| Clutch lever position | 3 notch | OEM |
| ECUKeihin EMS | ||
| ForkWP XACT 48mm AER Fork | ||
| Compressionclicks out from fully closed | 15 clicks▲ +3 | computed |
| Reboundclicks out from fully closed | 20 clicks▲ +2 | computed |
| Air pressure | 10.5 bar (152.29 psi) | OEM |
| HandlebarOEM Handlebar | ||
| ShockWP XACT Monoshock | ||
| Sagloaded, rider in gear | 105 mm | OEM |
| Static sagwithout load | 35 mm | OEM |
| High-speed compressionclicks out from fully closed | 1 turn▼ -0.5 | computed |
| Low-speed compressionclicks out from fully closed | 18 clicks▲ +3 | computed |
| Reboundclicks out from fully closed | 17 clicks▲ +2 | computed |
| Spring rate | 45 N/mm | OEM |
| SwingarmOEM Aluminium Swingarm | ||
| Rear Axle PostionOffset from middle of adjustment range | 0 mm | OEM |
| TireDunlop Geomax MX34 | ||
| Front tire pressure | 1.05 bar (15.23 psi)▲ +0.05 | computed |
| Rear tire pressure | 1.1 bar (15.95 psi)▲ +0.1 | computed |
| TransmissionOEM Final Drive | ||
| Front sprocket | 13 teeth | OEM |
| Rear sprocket | 52 teeth▲ +1 | computed |
| Triple ClampOEM CNC Triple Clamp | ||
| Offset | 22 mm | OEM |
After the ride
Tested a change? Record what happened. LAISA stores it against this bike and this condition. The recommendation above does not adapt to it automatically yet.
About this baseline
For a 75 kg Intermediate rider with a Neutral style, the Hardpack baseline for the KTM 450 SX-F 2025 at Arenzano - Terrarossa shifts 8 of 19 computed settings away from the OEM standard. The biggest shifts: High-speed compression 1 turn (-0,5 vs OEM), Compression 15 clicks (+3 vs OEM). All values are computed from OEM defaults and your rider and condition factors.
Value provenance: OEM = manufacturer specification · verified = confirmed by an expert · reviewed = editorially reviewed reference · community = confirmed by the community (median of at least three public setups) · computed = automatically derived by the LAISA engine. Automatically extracted and unconfirmed values never appear on public pages.
No public community setups yet for this bike and condition.
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Frequently asked questions
What is a good Hardpack setup for the KTM 450 SX-F 2025?
For a 75 kg Intermediate rider with a Neutral style, the Hardpack baseline for the KTM 450 SX-F 2025 at Arenzano - Terrarossa shifts 8 of 19 computed settings away from the OEM standard. The biggest shifts: High-speed compression 1 turn (-0,5 vs OEM), Compression 15 clicks (+3 vs OEM).
How much race sag for the KTM 450 SX-F 2025?
As a starting point, 105 mm of race sag at 75 kg rider weight. Measure with a helper and set it via spring preload.
What tire pressure for the KTM 450 SX-F 2025 in Hardpack conditions?
As a starting point: 1.05 bar front, 1.1 bar rear - computed for a 75 kg Intermediate rider. Check cold and adjust in small steps by feel.
What gearing (sprockets) does the KTM 450 SX-F 2025 run?
As a starting point, 13 teeth front / 52 teeth rear. For more acceleration go larger at the rear (or smaller at the front); for more top speed, the reverse.
Are these values safe to ride?
Baseline values are starting points generated from OEM defaults, rider weight, skill, style and conditions - not safety guarantees. Verify on the bike, adjust step by step and ride within your limits.
Baseline values are starting points generated from OEM defaults, rider weight, skill, style, and condition - or lifted from an expert/verified setup where one exists (see the provenance badge). They are not safety guarantees. Verify on the bike and ride within your limits.