LAISAYZ450F 2025 - Mud
Tuned for Motocross Lezennes - adds: loam, technical, tight
Yamaha YZ450F 2025 - 75 kg, Intermediate, Neutral, Mud - Motocross Lezennes
Set this first
There is nothing to change here: the values below come from a released reference and are used as they are - so there is no factory value for them to deviate from.
Key values- Shock: Sag100 mmno stock value on record to compare againstreviewed
- Shock: Low-speed compression8 clicksno stock value on record to compare againstreviewed
- Shock: Rebound12 clicksno stock value on record to compare againstreviewed
- Fork: Compression12 clicksno stock value on record to compare againstreviewed
- Fork: Rebound12 clicksno stock value on record to compare againstreviewed
17 confirmed settings available.
Released reference setup, editorially reviewed · Moderately documented
Referenced (not linked):- 2025 Yamaha YZ450F owner's manual standard settings, cross-checked vs Yamaha 2025 spec + PulpMX (stock HSC 1-1/4) + JBI/Keefer/MXA 2025 baselines (2025)
Last reviewed: 29 Jul 2026
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 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.
| BrakeNissin Hydraulic Disc Brakes | ||
| ChainOEM Chain | ||
| Chain length | 114 links | reviewed |
| ChassisOEM Aluminium Bilateral Beam Frame | ||
| Fork height in clampstube protrusion above top clamp | 2 ring | OEM |
| ClutchOEM Wet Multiplate Clutch | ||
| ECUOEM Engine Management | ||
| ForkKYB SSS 48 mm Coil Fork | ||
| Compressionclicks out from fully closed | 12 clicks | reviewed |
| Reboundclicks out from fully closed | 12 clicks | reviewed |
| Static sagwithout load | 8 mm | OEM |
| Spring rate | 5 N/mm | reviewed |
| HandlebarOEM Handlebar | ||
| ShockKYB Piggyback Monoshock | ||
| Sagloaded, rider in gear | 100 mm | reviewed |
| Static sagwithout load | 38 mm | reviewed |
| High-speed compressionclicks out from fully closed | 1.25 turns | reviewed |
| Low-speed compressionclicks out from fully closed | 8 clicks | reviewed |
| Preload | 8 mm | OEM |
| Reboundclicks out from fully closed | 12 clicks | reviewed |
| Spring rate | 56 N/mm | reviewed |
| SwingarmOEM Aluminium Swingarm | ||
| TireDunlop Geomax MX33 | ||
| Front tire pressure | 1 bar (14.5 psi) | reviewed |
| Rear tire pressure | 1 bar (14.5 psi) | reviewed |
| TransmissionOEM Final Drive | ||
| Front sprocket | 13 teeth | reviewed |
| Rear sprocket | 49 teeth | reviewed |
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 Mud baseline for the Yamaha YZ450F 2025 at Motocross Lezennes shifts none of the 17 computed settings away from the OEM standard. Values come from OEM defaults, your rider and condition factors and 14 verified reference setups.
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.
Doesn't feel right on track?
Pick the symptom and we'll show the likely setup causes - and whether it is really a technique thing.
Troubleshoot a handling problemMatching protective gear
The right setup is half the job - the other half is protective gear matched to the discipline and conditions.
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Frequently asked questions
What is a good Mud setup for the Yamaha YZ450F 2025?
For a 75 kg Intermediate rider with a Neutral style, the Mud baseline for the Yamaha YZ450F 2025 at Motocross Lezennes shifts none of the 17 computed settings away from the OEM standard.
How much race sag for the Yamaha YZ450F 2025?
As a starting point, 100 mm of race sag at 75 kg rider weight. Measure with a helper and set it via spring preload.
What tire pressure for the Yamaha YZ450F 2025 in Mud conditions?
As a starting point: 1 bar front, 1 bar rear - computed for a 75 kg Intermediate rider. Check cold and adjust in small steps by feel.
What gearing (sprockets) does the Yamaha YZ450F 2025 run?
As a starting point, 13 teeth front / 49 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.