K-Tech Front Fork Linear Performance Springs (35-425-90)(9.0N) (35 x 425) (Pair)
K-Tech Front Fork Linear Performance Springs (35-425-90)(9.0N) (35 x 425) (Pair)
Pickup available at Joe Superbike Center
Usually ready in 5+ days
The K-Tech Front Fork Spring 9.0N (35-425-90) is engineered to provide a significant upgrade over factory-installed springs.
If your front end feels "vague" mid-corner or blows through its travel under moderate braking, these linear springs are designed to restore chassis stability and keep your bike's geometry exactly where it needs to be.
Manufactured to DIN 2095 Grade 1 standards, every spring is cold-coiled from premium Chrome Silicone wire and subjected to heat treating, tempering, and shot peening. This ensures the 9.0N rate remains perfectly consistent and never "sags" over time.
The final polish reduces internal friction, delivering a plush and responsive feel that enhances front-tire feedback.
Bike Fitment / Bike Model
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Suzuki SV650: (2003–2012)
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Yamaha YZF-600R Thunder Cat: (1996–2002)