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Yamaha

YZ 125 2025

Track: 5 Points MX Park

Back to 5 Points MX ParkTaken over from the track: Sand · dry

Yamaha YZ 125 2025 - 75 kg, Intermediate, Neutral, 5 Points MX Park

Set this first

Most important change

Chassis: Fork height in clamps

Stock value
5 ring
Recommended
3 ring
Change
2 ring less than stock

tube protrusion above top clamp

Reason: condition 5 Points MX Park

How to test it: Change Fork height in clamps 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.

Key values

18 confirmed settings available.

Source

Released reference setup, confirmed by an expert

2 released references record no document.

Last reviewed: 29 Jul 2026

All recommended changes

In order, biggest deviation from the stock value first. Take them one at a time.

  1. Chassis: Fork height in clamps2 ring less than stock

    5 ring3 ringtube protrusion above top clamp

    Reason: condition 5 Points MX Park

    How to test it

    Change Fork height in clamps 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.

  2. 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.

  3. Shock: Low-speed compression2 clicks harder than stock

    10 clicks8 clicksclicks out from fully closed

    Reason: condition 5 Points MX Park

    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.

  4. Fork: Compression2 clicks harder than stock

    11 clicks9 clicksclicks out from fully closed

    Reason: condition 5 Points MX Park

    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.

  5. Shock: Rebound1 click harder than stock

    10 clicks9 clicksclicks out from fully closed

    Reason: condition 5 Points MX Park

    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.

  6. Tire: Front tire pressure0.1 bar less than stock

    1 bar0.9 bar

    Reason: condition 5 Points MX Park

    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.

  7. Tire: Rear tire pressure0.1 bar less than stock

    1 bar0.9 bar

    Reason: condition 5 Points MX Park

    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.

  8. Fork: Rebound1 click harder than stock

    11 clicks10 clicksclicks out from fully closed

    Reason: condition 5 Points MX Park

    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.

  9. Shock: Sag5 mm more than stock

    95 mm100 mmloaded, rider in gear

    Reason: condition 5 Points MX Park

    How to test it

    Change Sag 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.

  10. Fork: Spring rate0.1 N/mm more than stock

    4.2 N/mm4.3 N/mm

    Reason: condition 5 Points MX Park

    How to test it

    Change Spring rate 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.

  11. Shock: Spring rate1 N/mm more than stock

    48 N/mm49 N/mm

    Reason: condition 5 Points MX Park

    How to test it

    Change Spring rate 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.

18 confirmed values
BrakeNissin Hydraulic Disc Brakes
ChainOEM Chain
Chain length114 linksOEM
ChassisOEM Aluminium Bilateral Beam Frame
Fork height in clampstube protrusion above top clamp3 ring -2computed
ClutchOEM Wet Multiplate Clutch
ForkKYB SSS 48 mm Coil Fork
Compressionclicks out from fully closed9 clicks -2computed
Oil heightfrom top, fully compressed, no spring90 mmOEM
Reboundclicks out from fully closed10 clicks -1computed
Spring rate4.3 N/mm +0.1computed
HandlebarOEM Handlebar
ShockKYB Piggyback Monoshock
Sagloaded, rider in gear100 mm +5computed
High-speed compressionclicks out from fully closed1 turn -0.5computed
Low-speed compressionclicks out from fully closed8 clicks -2computed
Preload8 mmOEM
Reboundclicks out from fully closed9 clicks -1computed
Spring rate49 N/mm +1computed
SwingarmOEM Aluminium Swingarm
TireDunlop Geomax MX33
CompoundmediumOEM
Front tire pressure0.9 bar (13.05 psi) -0.1computed
Rear tire pressure0.9 bar (13.05 psi) -0.1computed
TransmissionOEM Final Drive
Front sprocket13 teethOEM
Rear sprocket49 teethOEM
Triple ClampOEM Triple Clamp
Offset25 mmOEM

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 baseline for the Yamaha YZ 125 2025 at 5 Points MX Park shifts 11 of 18 computed settings away from the OEM standard. The biggest shifts: Fork height in clamps 3 ring (-2 vs OEM), High-speed compression 1 turn (-0,5 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.

Next steps

Dial in your riding technique

Skills that change how the bike behaves - often the real fix before any clicker.

Explore technique

Matching protective gear

The right setup is half the job - the other half is protective gear matched to the discipline and conditions.

Gear for these conditions

Upgrades that fit

Optional aftermarket parts for this bike - the setup above comes first, these are next.

Shockfits
Moose Racing Moose Racing Umlenkungs-Kit
Sprocket Rearfits
Renthal Renthal Kettenrad Twinring
Sprocket Frontfits
Moto-Master Moto-Master Ritzel Ultralight
Clutchfits
Acerbis Acerbis Kupplungs/Zündungsdeckelschutz X-Power
See more parts that fit
Set it up like a pro

Get it professionally dialed in - find a coach or a track day.

Find coaching

Setups for this bike

2 setups

Reference setups

Verified factory and expert setups.
ReferenceOEM baselineExpert
Sand
High-speed compressionclicks out from fully closed8 clicks
Sagloaded, rider in gear103 mm
Low-speed compressionclicks out from fully closed12 clicks
Rear tire pressure0.75 bar
ReferenceKeefer Stock Specs (2024 = 2025)AI
RaceTraining
Compressionclicks out from fully closed8 clicks
Fork height in clampstube protrusion above top clamp3 Ring
Reboundclicks out from fully closed10 clicks
Spring rate4.2 N/mm
Sagloaded, rider in gear102 mm
High-speed compressionclicks out from fully closed1.25 clicks
Low-speed compressionclicks out from fully closed11 clicks
Reboundclicks out from fully closed11 clicks
Spring rate48 N/mm

Related

Similar bikes

Husqvarna FC 450 2024Kawasaki KX450F 2018KTM SX 250 2023KTM SX 250 2024KTM 125 SX 2025KTM 250 SX-F 2013KTM 350 SX-F 2025KTM 450 SX-F 2012

Matching tracks

1. RMC Reutlingen (Markwasen) (Baden-Württemberg)3 Palms Action Sports Park (Texas)5 Points MX Park (North Carolina)800 MX (Kentucky)AC Kronach (Bayern)ADAC OWL Enduro/MX Trainingsgelände (Nordrhein-Westfalen)AMC Bad Windsheim (Bayern)AMC Birkenfeld Motocross (Rheinland-Pfalz)

Comparisons

vs Husqvarna FC 450 2024vs Kawasaki KX450F 2018vs KTM SX 250 2023vs KTM SX 250 2024vs KTM 125 SX 2025vs KTM 250 SX-F 2013

Frequently asked questions

How much race sag for the Yamaha YZ 125 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 is recommended for the Yamaha YZ 125 2025?

As a starting point: 0.9 bar front, 0.9 bar rear - computed for a 75 kg Intermediate rider. Check cold and adjust in small steps by feel.

What gearing (sprockets) does the Yamaha YZ 125 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.

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