A Guide to Go-Kart Chassis Sizes

The chassis is a critical component of any go-kart, as its size influences handling, weight distribution, and suitability for specific age groups and racing categories. Here’s an overview of the most common chassis sizes and some of the leading brands in the karting industry: Kart Republic, Tony Kart, CRG, and Arrow Racing Karts.

1. 950mm Wheelbase Chassis

• Who It’s For:

  • Designed for younger drivers, typically in Cadet categories (ages 7–12).

  • The shorter wheelbase ensures nimble handling and easier control for smaller drivers. Much lighter to steer being a smaller kart and less weight.

• Key Features:

  • Compact design for reduced weight and better responsiveness.

  • Optimized for lower-power engines, like 60cc or Mini MAX.

• Popular Models:

  • Kart Republic KR Mini: Known for its lightweight build and competitive edge in cadet classes.

  • Tony Kart EVM: Offers precise handling and durability for younger racers.

  • CRG Hero: A reliable and versatile option in cadet racing.

2. 1010mm Wheelbase Chassis

• Who It’s For:

  • Suited for intermediate drivers, typically in junior karting categories (ages 12–15).

  • Provides a balance between the agility of cadet chassis and the stability of senior chassis.

  • Not all chassis manufacturers offer a 1010mm wheelbase chassis. Many have opted for drivers to move from Cadet (950mm) to Senior (1030mm) due to the softer tyre compounds.

• Key Features:

  • Slightly longer wheelbase enhances stability without compromising agility.

  • Often paired with 100cc engines.

• Popular Models:

  • Arrow X6 Junior: Australian-made, offering exceptional performance and reliability.

  • Tony Kart Racer 401 Junior: A high-quality chassis that bridges the gap between cadet and senior categories.

3. 1030mm Wheelbase Chassis (Senior)

• Who It’s For:

  • Designed for senior categories and adult drivers.

  • The longer wheelbase provides greater stability at high speeds, suitable for powerful engines like 125cc water-cooled or shifter kart engines.

• Key Features:

  • Increased wheelbase enhances cornering stability and weight distribution.

  • Accommodates heavier drivers and more demanding racing conditions.

• Popular Models:

  • Kart Republic KR2: A top choice for competitive senior karting, offering precision and versatility.

  • Tony Kart Racer 401R: One of the most recognized chassis for senior categories, widely used in championships worldwide.

  • CRG KT2: Renowned for its robustness and exceptional handling in senior and shifter categories.

  • Arrow X6.2: Combines Australian engineering with high-end performance.

Leading Karting Brands

1. Kart Republic:

   • Known for innovative designs and cutting-edge technology, Kart Republic is a favourite in competitive karting worldwide.

2. Tony Kart:

   • A powerhouse in the industry, offering durable and high-performing chassis for all categories. One of the most common brands in World karting, designed and manufactured in Italy.

3. CRG:

   • Renowned for its success in shifter kart racing and its versatile chassis lineup.

4. Arrow Racing Karts:

   • Australia’s premier karting brand, celebrated for its precision engineering and reliability for over 45 years.

Choosing the Right Chassis

Selecting the right chassis depends on the driver’s age, skill level, and the category they compete in. Brands like Kart Republic, Tony Kart, CRG, and Arrow Racing Karts provide excellent options across all chassis sizes, ensuring there’s a perfect fit for every racer.

Be mindful of the chassis spares & technical nuance in your area when looking to purchase your next kart, as it’s important to have that support when moving to a new brand.

Explore these chassis options with your local kart dealer or at official brand websites to find the best match for your karting goals!