Go
2025 Yamaha YZ450F (YZ450FSL)
2025 Yamaha YZ450F Fork Spring Rate Chart
2025 Yamaha YZ450F Shock Spring Rate Chart
2025 Yamaha YZ450F (YZ450FSL)
2025 Yamaha YZ450F Fork Spring Rate Chart
2025 Yamaha YZ450F Shock Spring Rate Chart

  • Guaranteed Fitment

    Always the correct part

  • 20+ Years Experience

    Tested, Tuned, & Developed

  • Domestic Shipping

    All 50 States

2025-2026 Yamaha YZ450F

(No reviews) Write a Review
$0.00
Shipping: Calculated at Checkout
Adding to cart… The item has been added
Description  

2025 Yamaha YZ450F (YZ450FSL)
2026 Yamaha YZ450F (YZ450FTL)

Fork Spring Rate Recommendations

  • The 2025-2026 Yamaha YZ450F stock fork spring rate is 5.0N  (0.51kg/mm) with a spring length of 498mm.
  • The KYB SSS spring fork remains on the YZ450F since 2006.
  • The 2025-2026 Yamaha YZ450F KYB SSS Spring fork features updated stock settings compared to the 2024 Yamaha YZ450F KYB fork.
  • Tap the image below to purchase fork springs for 2025-2026 Yamaha YZ450F:

    kyb-498mm-fork-spring-ad.png

2025-yz450f-fork-spring-rate-chart.png

 

 

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

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 Yamaha YZ450F stock shock spring rate is 56N (5.7kg/mm) with a spring length of 275mm
  • The KYB 16mm shock shaft with 50mm main piston remains on the YZ450F.
  • New linkage and linkage ratio for 2025-2026 Yamaha YZ450F
  • For 2025-2026 the Yamaha YZF shock features new settings compared to the 2024 Yamaha YZ450F.
  • Tap the image below to purchase shock springs for 2025-2026 Yamaha YZ450F:


    kyb-275mm-shock-spring-ad.png

    2025-yz450f-shock-spring-rate-chart.png

 

 

Motocross
120lbs-135lbs 51N
135lbs-155lbs 52N
155lbs-170lbs 54N
170lbs-185lbs 56N (Stock)
185lbs-200lbs 57N
200lbs-215lbs 58N
215lbs-230lbs 60N
230lbs-245lbs 62N
245lbs-275lbs 63N or 64N		 Soft Moto / Open Desert
120lbs-135lbs 51N
135lbs-155lbs 52N
155lbs-170lbs 54N
170lbs-185lbs 56N (Stock)
185lbs-200lbs 57N
200lbs-215lbs 58N
215lbs-230lbs 60N
230lbs-245lbs 62N
245lbs-275lbs 63N or 64N
Flowy Single Track (Fast & Slow)
120lbs-135lbs 50N
135lbs-155lbs 52N
155lbs-170lbs 54N
170lbs-185lbs 56N (Stock)
185lbs-200lbs 56N (Stock)
200lbs-215lbs 57N
215lbs-230lbs 58N
230lbs-245lbs 60N
245lbs-275lbs 61N or 62N		 Technical Single Track & Hard Enduro
120lbs-135lbs 50N
135lbs-155lbs 52N
155lbs-170lbs 54N
170lbs-185lbs 54N
185lbs-200lbs 56N (Stock)
200lbs-215lbs 57N
215lbs-230lbs 58N
230lbs-245lbs 60N
245lbs-275lbs 61N

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

5latau

Customers Also Viewed

!