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AK-20 Axxion Fork Cartridge Kit
Traxxion Dynamics is proud to introduce the next revolution in motorcycle suspension for the Ninja 400, the well known, race proven, AK-20 Axxion Fork Cartridge Kit.
The AK-20 Axxion Cartridge Kit is a complete upgrade that replaces the stock ill-performing springs and damper rod system with a pair of extremely high-tolerance CNC-machined cartridges, and top quality springs and valving suited to your needs, weight, and intended use. The AK-20 kit utilizes a dual piston damping design. What this means is that even though compression adjustment is done in the left fork leg, and rebound adjustment is done in the right fork leg, both fork legs have compression and rebound damping pistons. This is a critical advantage of the AK-20 cartridge system and it allows the dual piston design to flow twice as much oil as a single piston cartridge design, resulting in faster response to bumps, finer adjustability, and ultimately better traction. The AK-20 features 20mm cartridge tubes which are bored and honed to .0005" tolerances. The 12.5mm cartridge rods are centerless ground to .0005" tolerances. No other suspension unit is held to these exacting standards. Their unique bearing design helps seal the cartridge to improve low speed damping and increase damping response time, and virtually eliminates stiction. The components are then hard-coat anodized to prevent oxidation and wear contamination of the fork fluid. All of this leads to a cartridge that performs beyond any customers expectation. As an added bonus, the kit is completely modular in construction, and can be retrofitted to future motorcycles you may buy down the road.
Included in the kit is one set of AK-20 Axxion Cartridges, one set of Traxxion's proprietary Omni Springs matched to the riders weight and riding preferences, one quart of 7wt racing quality fork fluid, and step by step instructions on installing the kit. Since the R3 forks use damper rods and do not have adjustments for compression, rebound, or preload, Traxxion includes a beautiful set of replacement fork caps with compression, rebound, and preload adjustments built in.
A few special tools are needed to install a cartridge kit and since the Ninja 400 has damper rod style forks, the forks must be modified slightly to accommodate the AK-20 cartridge kit. This is not a drop in kit not something you want to "learn on". We HIGHLY recommend sending your forks in for installation. The price for installation is VERY reasonable and usual turn around time is less than one business week, so you wont be off the road for long!
We recommend replacing your fork seals when installing your new fork kit. It's also a good idea to keep an extra set of seals in your spares box for track days and racing.
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