Wilbers Fork Spring - Zero friction - Linear
Wilbers linear fork springs
Linear springs offer predictable, easily adjustable behavior — the specialist’s choice for the racetrack. Built from first-class chrome-silicon steel and supplied with ABE. Even with linear springs, the air chamber provides end-stroke progression.
Product may vary from picture.
Recommended oil viscosity and air chamber:
NOTE
Fork Oil SAE 5 (1 L) | Air Chamber: 85mm
FITMENT
2004 - 2006 Yamaha YZF-R1 | RN12
SKU
601-0246-02
Let customers speak for us
Can’t rave enough about the set-up! Two weeks after installation, I went on a 9 day ride from Staten Island NY to Key West FL and back, with various stops in between. The bike handled so smoothly, it was the best long ride i ever had. Never bottomed out either! I’ve been recommending the Wilber’s Nivomat suspension & EPM Performance to everyone I meet. Thank you.
What a great product. So much better than stock. Easy set up and go. No more 3 different adjustments.
Front cartridges for my 2021 Harley heritage softail classic. Solid and stable w no bouncing and jittering. Huge difference from stock.
I have about 50 miles riding on this shock so far. It works and feels great.
I had hyperpro one inch lowered shock and springs installed at epm, on my 2025 z650, great service, (thank you guys). Before the install i could feel every bump in the road, after the ride was very smooth except for very large holes. total different bike. Very satisfied.
The shock seems to do it's job - it absorbs road bumps and rebounds quickly to take on the next one.
