Wilbers Powered by ZF Fork Type 46RR ACA with Closed Cartridge
In cooperation with ZF, we developed the R46RR ACA fork for ultimate race performance. Used in our IDM racing program, it helped secure a vice-championship title on the M1000RR. The redesigned outer tubes feature optimized wall thickness for ideal flex and stability, while our patented ACA technology enables external adjustment of the air chamber — no fork disassembly required.
Equipped with a fully adjustable closed cartridge and a high-precision damping system, this fork includes a matching triple clamp and fender bracket. Due to the larger tube diameter, special 56 mm clip-ons are required (available separately).
Key Features:
– Rebound and compression damping: 10 clicks each
– Spring preload adjustment: 10 mm
– Closed cartridge with integrated gas chamber for constant damping
– 46 mm inner tubes, 140 mm travel
– Blue-anodized outer tubes and low-friction coated sliders
– ACA external air chamber adjustment
– Custom spring rates available
– Includes triple clamp and fender mount
2017 - 2019 Honda CBR 1000 RR Fireblade SP-2 | SC77C
SKU
308-0017-00
Please answer the questions below to ensure your suspension will be set up correctly for your carried weights.
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.
