Wilbers Powered by ZF Fork Type 46RR with Closed Cartridge
ACA — Air Chamber Adjuster (46RR ACA fork)
A standout innovation in the Wilbers lineup: a closed-cartridge system with external oil-level adjustment. Rebound (left leg) and compression (right leg) are each adjustable in 10 clicks, with spring-preload adjusters on both sides. Tuned wall thicknesses deliver optimal flex for exceptional grip and feel at lean.
The signature cylinders at the axle clamps house our patented Air Chamber Adjuster, allowing you to change the oil level externally by up to 10 mm in 0.5 mm steps — no fork disassembly required.
2021 - 2025 BMW R nineT | RN12
SKU
308-0006-00
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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.
