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🛞 30mm Ultra Soft Axle – CAD-Designed, CNC-Machined, Made in the USA 🇺🇸
The 30mm Axle from Zero Error Racing is the beating heart of your kart’s rear end. Precision CAD-designed, CNC-machined, and proudly made in the USA, this axle delivers the flex and finesse needed to dominate on low-grip tracks.
⚙️ Key Specs:
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Diameter: 30mm – ideal for responsive handling and weight transfer
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Wall Thickness: 2mm – tuned for maximum flex without compromising strength
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Material: Aircraft-grade steel alloy
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Flex Rating: engineered for high rear grip and chassis movement
💡 Why Choose Zero Error:
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American Craftsmanship – built with pride and precision in the USA
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Race Proven – trusted by top-tier drivers in karting and Jr. Dragster circuits
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Consistent Quality – CAD and CNC technology ensures repeatable performance
🏁 Track Condition Guide – Axle Selection Made Simple
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Track Condition
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Surface Grip
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Recommended Axle
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Driver Type
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Handling Goal
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Wet / Rainy
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Very Low
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Ultra Soft (VS)
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Light / Medium
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Max rear grip, easy rotation
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Cold & Dusty
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Low
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Ultra Soft (VS)
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Light / Medium
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Flex for tire bite
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Morning Practice
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Low-Medium
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Very Soft (S)
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Medium / Heavy
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Balanced grip, adaptable flex
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Midday Rubbered Track
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Medium
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Soft (S)
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Medium / Heavy
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Stability with slight flex
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Hot & Sticky
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High
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Medium / Hard
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Heavy
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Free up rear, reduce overgrip
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Race Day (Rubbered In)
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High
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Soft (S)
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Medium / Heavy
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Controlled flex, consistent grip
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💡 Tip: Start with a neutral axle during practice and adjust based on tire feedback and lap times.
🧰 Race-Ready Spec Sheet – Build Your Winning Setup
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Component
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Spec / Recommendation
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Notes
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Axle
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30mm Ultra Soft (VS)
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Zero Error Racing, CNC-machined
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Lock Collar
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30mm 2-Piece Aluminum Clamp Collar
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8mm keyway, Zero Error or PKT
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Bearings
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High-speed sealed bearings
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Labyrinth seal preferred for durability
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Hubs
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Lightweight aluminum 30mm rear hubs
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Match bolt pattern to axle and brake setup
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Brake Carrier
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Zero Error anodized brake hub
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Clear or black finish
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Tires
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MG Red or Vega Blue (based on track grip)
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Softer compounds pair well with VS axles
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Driver Weight Range
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< 120 lbs
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Ideal for maximizing flex and grip
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