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2026 Kawasaki KX250
2025 Kawasaki KX250
2025-2026 Kawasaki KX250 Fork Spring Rate Chart
2025-2026 Kawasaki KX250 Shock Spring Rate Chart
2026 Kawasaki KX250
2025 Kawasaki KX250
2025-2026 Kawasaki KX250 Fork Spring Rate Chart
2025-2026 Kawasaki KX250 Shock Spring Rate Chart

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2025-2026 Kawasaki KX250

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Description  

2025-2026 Kawasaki KX250 (KX252ESFNN)

  The 2025-2026 Kawasaki KX250 brings several updates to enhance performance and rider experience, including refinements to its engine and suspension. The bike features a more powerful and responsive 249cc liquid-cooled, two-stroke engine with improved throttle response and overall power delivery, thanks to tweaks in the ECU and exhaust system. It also comes with a new Showa suspension setup, offering better handling and stability across different terrains. The chassis has been slightly redesigned for improved rigidity, helping with cornering and overall control. Additionally, Kawasaki has updated the ergonomics, offering a more comfortable ride with a revised seat and footpeg positioning. The bike also benefits from updated graphics, a new clutch design for smoother engagement, and improved braking performance for enhanced control during aggressive riding.

Fork Spring Rate Recommendations

  • The 2025-2026 Kawasaki KX250 stock fork spring rate is 5.0N  (0.51kg/mm) with a spring length of 475mm
  • The Showa 49mm twin chamber spring fork is new for model year 2025 (same fork and shock as the 24/25 KX450).
  • The 2025-2026 Kawasaki KX250 Showa 49mm twin chamber fork replaces the KYB SSS 48mm Fork on the 2020-24 Kawasaki KX250.
  • The JBI Spring Rate Chart references the rider weight in casual cloths
    • Ride JBI has already accounted for the additional weight of riding gear
  • Tap the image below to purchase fork springs for the 2025-2026 Kawasaki KX250: 

    showa-475mm-fork-spring-ad.png

2025-kx250-fork-spring-rate-chart.png

Motocross
120lbs-135lbs 4.6N
135lbs-155lbs 4.7N
155lbs-170lbs 4.8N
170lbs-185lbs 4.9N
185lbs-200lbs 5.0N (Stock)
200lbs-215lbs 5.1N
215lbs-230lbs 5.2N
230lbs-245lbs 5.3N
245lbs-275lbs 5.4N		 Soft Moto / Open Desert
120lbs-135lbs 4.5N
135lbs-155lbs 4.6N
155lbs-170lbs 4.7N
170lbs-185lbs 4.8N
185lbs-200lbs 4.9N
200lbs-215lbs 5.0N (Stock)
215lbs-230lbs 5.1N
230lbs-245lbs 5.2N
245lbs-275lbs 5.3N
Flowy Single Track (Fast & Slow)
120lbs-135lbs 4.5N
135lbs-155lbs 4.6N
155lbs-170lbs 4.7N
170lbs-185lbs 4.8N
185lbs-200lbs 4.9N
200lbs-215lbs 5.0N (Stock)
215lbs-230lbs 5.1N
230lbs-245lbs 5.2N
245lbs-275lbs 5.3N		 Technical Single Track & Hard Enduro
120lbs-135lbs 4.4N
135lbs-155lbs 4.5N
155lbs-170lbs 4.6N
170lbs-185lbs 4.7N
185lbs-200lbs 4.8N
200lbs-215lbs 4.9N
215lbs-230lbs 5.0N (Stock)
230lbs-245lbs 5.1N
245lbs-275lbs 5.2N

Weight references person in regular everyday casual cloths.
This chart accounts for the common additional weight of riding gear
This info relates to stock valving and modified valving

Shock Spring Rate Recommendations

  • The 2025-2026 Kawasaki KX250 stock shock spring rate is 54N  (5.5kg/mm) with a spring length of 240mm
  • New for model year 2025-2026 is the Showa Uni-Trak® shock. It features a 16mm shock shaft with 50mm main piston.
  • The Kawasaki KX250 and Kawasaki KX450 share the same shock for 2025-2026.
  • The JBI Spring Rate Chart refers to the rider in casual cloths
    • Ride JBI already accounts for the additional weight of riding gear
  • Recommended Rider Sag and Spring Preload values
    • Riders that are 6ft or taller a Rider Sag Range of 100-103mm is recommended with 6-10mm spring preload
    • Riders that are 5'11" or shorter a Rider Sag Range of 102-105mm is recommended with 6-10mm spring preload
  • Tap the image below to purchase a shock spring for the 2025-2026 Kawasaki KX250: 

    showa-shock-spring-ad.png

2025-kx250-shock-spring-rate-chart.png

Motocross
120lbs-135lbs 50N
135lbs-155lbs 51N
155lbs-170lbs 52N
170lbs-185lbs 54N (Stock)
185lbs-200lbs 56N
200lbs-215lbs 57N
215lbs-230lbs 58N
230lbs-245lbs 60N
245lbs-275lbs 62N		 Soft Moto / Open Desert
120lbs-135lbs 50N
135lbs-155lbs 51N
155lbs-170lbs 52N
170lbs-185lbs 54N (Stock)
185lbs-200lbs 56N
200lbs-215lbs 57N
215lbs-230lbs 58N
230lbs-245lbs 60N
245lbs-275lbs 62N
Flowy Single Track (Fast & Slow)
120lbs-135lbs 48N
135lbs-155lbs 50N
155lbs-170lbs 51N
170lbs-185lbs 52N
185lbs-200lbs 54N (Stock)
200lbs-215lbs 56N
215lbs-230lbs 57N
230lbs-245lbs 58N
245lbs-275lbs 60N		 Technical Single Track & Hard Enduro
120lbs-135lbs 48N
135lbs-155lbs 50N
155lbs-170lbs 51N
170lbs-185lbs 52N
185lbs-200lbs 54N (Stock)
200lbs-215lbs 56N
215lbs-230lbs 57N
230lbs-245lbs 58N
245lbs-275lbs 60N

Weight references person in regular everyday casual cloths.
This chart accounts for the common additional weight of riding gear
This info relates to stock valving and modified valving

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