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Dedicated Subsystem WorkbenchPlatform Gen: 2020–2025

2022 Kawasaki KX250 Suspension Hydraulics, Fork Fluids & Sag Tuner

Front fork travel, rear shock travel, spring preload, damping click baselines, and dynamic rider sag calculator for 2022 Kawasaki KX250.

Technical PassportOEM VERIFIED
Engine
249cc
Cooling
Not Available
Final Drive
520 Chain
Engine Oil
0.85 L (0.90 US qt) with filter change (1.00 L completely dry)
Spark Plug
NGKHG9B12P (Iridium Racing)
Front Tire
80/100-21 51M
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Gen 2020–2025

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 2020 through 2025.

Select Model Year:(Active: 2022)
6 Production Years (2020–2025)
Suggested Items4 Verified Workshop Consumables Available for this Job
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Suspension Hydraulics, Fork Fluids & Interactive Sag Tuner

Showa • KYB • WP Standards
OEM hydraulic capacities, air-gap measurement standards, clicker baselines, and mathematical rider sag tuning.
Shop Fork Seals & Wipers
Fork Architecture
Inverted USD Closed-Cartridge Coil Spring (48mm KYB)
Oil Volume Per Leg
340 ml outer chamber (300 – 380 ml tuning range) / 195 ml inner damper cartridge
OEM Fluid Specification
KYB KHL15-10 (SAE 5W)
Air-Gap Spec (Oil Level)
340 ml measured by volume in outer tube
Fork Seal Dimensions
48 x 58.1 x 8.5/10.5 mm
Total Suspension Travel
Front: 314 mm • Rear: 316 mm
Target Rider Sag: 75 - 85 mm
Front Preload Baseline
4.9 N/mm coil spring standard
Rebound Damping Baseline
Fork: 12 clicks out | Shock: 11 clicks out
Compression Damping Baseline
Fork: 10 clicks out | Shock Low-Speed: 10 clicks out / High-Speed: 1-1/8 turns out
Target Free Sag (Unladen)
30 - 40 mm
Enter 3-Point Sag Measurements (mm)
Suspension Sag Diagnosis & Geometry Status
Enter your extended, static, and rider measurements on the left (or select a preset) to compute exact sag percentages and spring preload recommendations.
Factory Fluid StandardDirect Spec
Maxima Racing Fork Fluid 5W (1 Liter)
Formulated with anti-foam agents and shear-stable viscosity index improvers to prevent damping fade under aggressive riding heat.
Fork & Dust Seal KitExact Stanchion Fit
All Balls Racing 48mm Fork & Dust Seal Kit
Features directional triple-lip rubber seal profile and external garter springs engineered to withstand heavy stanchion flex without weeping.
Air-Gap Tuning PhysicsBottoming Control
340 ml measured by volume in outer tube
Trapped air column acts as a progressive spring in final 30% of stroke. Adding +5mm oil increases bottoming resistance without stiffening small bump compliance.
Recommended Maintenance Parts: Maxima Racing Fork Fluid 5W (1 Liter) • All Balls Racing 48mm Fork & Dust Seal Kit

Official NHTSA Safety Recalls & Technical Bulletins

0 Open Campaigns (Clean)
U.S. Department of Transportation compliance database (Title 49 U.S.C. Chapter 301).
Verify VIN on NHTSA.gov
No Active Federal Safety Recalls Reported
The U.S. DOT National Highway Traffic Safety Administration (NHTSA) records zero open safety recall campaigns for the 2022 Kawasaki KX250 platform. Always check your individual 17-digit VIN at an authorized dealership or via NHTSA.gov for individual recall completions.

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