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Senzo Rear Axle 50mm Kart Republic 1030mm 4-Keyway

SKU:AX50SS1030-KR-STD

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Ex VAT: £100.00
£120.00 Inc VAT
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Hardness : Super Soft
Only 4 units left
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Designed for
Junior & Senior This fits all junior and senior karts ↩ Free Returns Free UK returns via Royal Mail or Evri – no printer needed

About this Product

The Senzo Rear Axle 50mm Kart Republic 1030mm 4-Keyway is a high-quality performance axle designed specifically for Kart Republic chassis. Engineered for strength, precision, and consistency, this axle helps optimise rear-end grip and handling characteristics across a wide range of track conditions.

Featuring a durable 4-keyway design, it ensures secure fitment of hubs and brake components while delivering the reliability required for competitive karting.

Axle stiffness is one of the most effective tuning tools in a kart setup. A softer axle flexes more, increasing rear traction — ideal when the track is green, cold, or low on rubber. A harder axle reduces flex and limits grip, which prevents the kart from being over-driven on high-grip or rubbered-in surfaces. Choosing the right grade for your conditions can make a significant lap time difference.

Axle stiffness scale

Softer — more gripHarder — less grip
Super softSoftMediumHard
Super soft
Best for
Wet / damp Cold track Very low grip
Stiffness ~350 rm
Soft
Best for
Low grip Cool / fresh Green track
Stiffness ~380 rm
Medium
Best for
General use Mixed conditions Balanced setup
Stiffness ~530 rm
Hard
Best for
High grip Hot track Rubbered-in
Stiffness ~650 rm

Stiffness by grade (rm)

Super soft
350 rm
Soft
380 rm
Medium
530 rm
Hard
650 rm

Key Features

  • 50mm diameter rear axle
  • 1030mm length
  • 4-keyway configuration
  • Compatible with Kart Republic chassis
  • Available in Super Soft, Soft, Medium, and Hard grades
  • High-strength construction for race reliability

Why Choose the Senzo Rear Axle?

With four stiffness grades covering the full range of track conditions, the Senzo axle gives drivers and mechanics the tools to extract genuine pace from the chassis — not just run a generic setup. Whether you're chasing grip on a damp morning or freeing up the rear on a high-grip championship circuit, there's a grade that fits.

KKC Kart Components — trusted karting parts built for performance, durability, and value on race day.

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