ZANVORI PERFORMANCE
50MM AXLE – ALL SIZES & GRADES
Professional-grade kart axles made in Italy by Zanvori.
Designed as a high-quality replacement for OTK 50mm axles, manufactured using premium Italian steel comparable to genuine OTK components.
Specifications
Diameter: 50mm
B Dimension: 120mm
D Dimension: 245mm
Axle Stiffness Options
Grade
Stiffness Rating
Colour Code
OTK Equivalent
Extra Soft
—
—
—
Soft / U
350–400 N/mm²
Red
OTK Type U
Medium / Soft
—
—
—
Medium / N
480–550 N/mm²
Green
OTK Type N
Medium (Springy)
—
—
—
Medium / Hard
—
—
—
Hard / H
650+ N/mm²
White
OTK Type H
Extra Hard
—
—
—
Features
Precision-engineered in Italy
High-quality Italian steel construction
Excellent alternative to genuine OTK axles
Available in multiple stiffness grades to suit track conditions and driving style
Compatible with OTK chassis platforms including Tony Kart, Kosmic, Exprit, Redspeed and EOS
Choosing the Right Axle
Softer axles increase rear grip and help in low-grip or wet conditions.
Harder axles free up the kart and improve performance in high-grip conditions.
Medium grades provide balanced handling for general use.
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