Unleash the full performance potential of your Kawasaki ZX4RR with our precision-engineered titanium axles. Designed specifically to replace the OEM front and rear axles, this upgrade drops rotating mass, tightens handling, and gives your build that high-end edge.

Forged from aerospace-grade Ti-6Al-4V (Grade 5) titanium, these axles are exceptionally light yet retain impressive strength and fatigue resistance. With a corrosion-resistant finish and race-ready tolerances, these are the kind of upgrade every ZX4RR owner dreams about—but until now, few dared to build.

Every axle is turned, stress-relieved, and ground for concentricity. The design includes proper shoulder fits to match the ZX4RR’s OEM collars and spacers (as shown in Kawasaki’s parts diagrams for front and rear axle assemblies). Kawasaki+1

Precision fitment means seamless integration with stock rear nut and washer dimensions (e.g. M16 × 1.5 rear nut with flange) — no guesswork. Future-proof your ride with a true track-to-street titanium axle solution.

Why ZX4RR riders will love them:

• Dramatic weight savings over OEM steel axles

• More responsive handling and sharper direction changes

• Excellent resistance to corrosion (wet track, salt, grime)

• Premium look and feel — style matched to performance

• Made with clearances, tolerances, and dynamics tuned for the ZX4RR